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Group Title: Citrus Station mimeo series - Florida Citrus Experiment Station ; 60-14
Title: Mineral composition of leaves of pink seedless and ruby red grapefruit
CITATION PAGE IMAGE ZOOMABLE
Full Citation
STANDARD VIEW MARC VIEW
Permanent Link: http://ufdc.ufl.edu/UF00072404/00001
 Material Information
Title: Mineral composition of leaves of pink seedless and ruby red grapefruit in survey groves during 1954-1957
Series Title: Citrus Station mimeo series
Physical Description: 22 leaves : ; 28 cm.
Language: English
Creator: Deszyck, E. J
Ting, S. V., 1918-
Koo, Robert Cheng Jen, 1921-
Citrus Experiment Station (Lake Alfred, Fla.)
Florida Citrus Commission
Florida -- Citrus and Vegetable Inspection Division
Publisher: Florida Citrus Experiment Station
Place of Publication: Lake Alfred FL
Publication Date: 1960
 Subjects
Subject: Grapefruit -- Fertilizers -- Florida   ( lcsh )
Leaves -- Composition -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: E.J. Deszyck, S.V. Ting, and R.C.J. Koo.
General Note: Cover title.
General Note: "June 1960."
General Note: "Cooperative research of the Florida Citrus Commission, Citrus and Vegetable Inspection Division of the Florida Department of Agriculture, and the Florida Citrus Experiment Station."
Funding: Citrus Station mimeo report ;
 Record Information
Bibliographic ID: UF00072404
Volume ID: VID00001
Source Institution: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 75204385

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Full Text






June 1960


Citrus Station Mimeo
Series 60-14
(*-*)


MINERAL COMPOSITION of LEAVES of PINK

SEEDLESS and RUBY RED GRAPEFRUIT.



In Survey Groves During 1954-1957.





E. J. Deszyck, S. V. Ting, and R. C. J. Koo


Cooperative research of the Florida Citrus Commission, Citrus and
Vegetable Inspection Division of the Florida Department of Agri-
culture, and the Florida Citrus Experiment Station.








MINERAL COMPOSITION of LEAVES of PINK
SEEDLESS and RUBY RED GRAPEFRUIT

In Survey Groves During 1954-1957




E. J, Deszyck, So V. Ting and R. C, J. Koo






This report presents to the growers cooperating in a three year state-
wide survey the data obtained on mineral composition of the leaves, fertilizer
applications, and tree age in their pink and red grapefruit groves on two root-
stocks. The intent of presenting this information is to give the grower a
picture of the variations in the mineral element concentrations in the leaves,
Also, the results serve as a reference to growers of these commercial varieties,
and to the researcher interested in grapefruit nutrition.

This survey was conducted during the 1954-57 seasons under the direction
of Doctor L. G. MacDowell, Florida Citrus Commission, in cooperation'with the
Florida Citrus Experiment Station and the Citrus and Vegetable Inspection Division
of the Florida Department of Agriculture,

Some of the conditions pertaining to the groves in this survey are
briefly presented. Although a fruit quality survey was conducted for four sea-
sons, leaf samples were collected during only the last three. All groves were
selected on a voluntary basis. During the survey about 160 groves were avail-
able on the average for each season, one grove each in Dade, Hardee, and Marion,
two groves in Hernando, four groves in Pinellas, five in Manatee, six in St.
.Lucie, seven each in Brevard and Pasco, eight each in Highlands and Hillsborough,
sixteen in Orange, thirty nine in Lake and fifty six in Polk County. The total
area approximated 3,000 acres, most of which were located in Lake and Polk Counties.
In nearly two-thirds of the groves, trees were set at 25 ft. x 25 ft., 25 ft. x
30 ft., or 30 ft. x 30 ft. The age of the trees in two-thirds of the groves
ranged from 6 to 11 years. Ruby Red grapefruit was the most popular variety
with rough lemon the most common rootstock, In general during these three sea-
sons, the weather was extremely dry.

Although the fertilizer and spray practices varied considerably, nearly
one-half of the groves received fertilizer in two applications each season, that
is spring and fall. The same proportion of groves received dolomite or lime,
but most received soluble sources of magnesium. Each tree in more than one-third
of the groves was fertilized with two pounds each of nitrogen and potash during
any season. One-half of the groves were sprayed four or five times, with an
equal fraction receiving a zinc spray. In addition, one-third of the groves re-
ceived boron; two-thirds, manganese; and three-quarters, copper, applied either
as a spray, fertilizer, or both. Three groves out of four were sprayed with
arsenic for early maturity or high ratio.








Throughout every grove the inspectors tagged six trees from which they
collected leaf samples in June of each season. Two spring flush leaves,
approximately three months old were sampled randomly from each corner of a tree
for a total of 48 leaves per sample. Approximately 500 samples were collected.

The data are tabulated according to season, variety, rootstock, and
grove number. The nitrogen, potassium, calcium, phosphorus and magnesium are
expressed as percentages in the dry leaves. Tree age and the pounds of nitrogen
and potash applied to each tree during a season are also listed.


Acknowledgments

The authors express their sincere appreciation to the many production
managers and independent growers for their generous cooperation in supplying
groves and records which made this study possible. They also thank Miss Mary
Dobbings, Florida Citrus Commission, for assisting in the tabulation of the data;
to Mr. G. E. Copeland, Director of the Citrus and Vegetable Inspection Division
for providing the services of four inspectors, and to Messrs. R. C. Boney, G. G.
Byrd, R. R. Mays and 0. A. Wilkinson for collection of the leaf samples.








Leaf Composition, Fertilizer Applications, and
Age of Pink Seedless and Ruby Red Grapefruit
Groves During 1954-1957


Fertilizer
Composition** Applied/tree
P Ca Mg N K20
% % % lb. lb,


Al

A1A
A1B
A1C

A1A
A1B
A1C

A2

A2A
A2B
A2C

A2A
A2B
A2C

AS

A5A
A5B

A5A
A5B

A6

A6A
A6B
A6C

A6A
A6B
A6C

A9

A9A
A9B

A9A
A9B


Season*


Age
Years


Grove
No.


2.89

2.78
2.88
2.59

2.63
2.57
2.66

2.49

2.65
2.68
2.67

2.82
2.72
2.45

2.46

2.74
2.78

2.23
2.36

2.17

2.45
2.61
2.14

2.57
2.66
2.45

2.59

2.79
2.65

2.57
2.72


-3-


IIIII [ I I m lll


Leaf
K
%



2.29

2.18
2.38
2.08

2.38
2.50
2.38

2.25

1.76
1.84
1.88

2.26
2.12
2.00

2.69

2.88
2.75

2.62
2.76

2.25

1.88
2.38
2,04

1.88
2.12
2.26

1.67

2.18
1.88

2.00
1.76


6-7


6 7


- 5

- 6


6-7


6-7


6- 7


*


O


.


.


.
.


*
*



0











O


.
a













.
.

.

.


.

.

.
*


*

*
.

.

*
.

*

*


I IIIII


Ruby Red on


,13 2.60

13 2.46
13 2.37
12 2.78

15 2.50
16 2.50
16 2.75

15 2.67

13 4.27
14 3.93
15 3.34

15 2.88
14 3.75
14 3.25

13 2.78

14 2.71
15 2.62

15 2.50
14 2.50

15 3.89

12 4.22
13 3.84
13 4.22

13 4.12
13 4.00
12 3.75

17 3.75

18 3.34
17 3.68

19 3.75
19 4.00


Rough Lemon


.60 3,;

.53 2.
.54 2..
.54 2..

.45 2,.
.46 2.8
.50 2.,

.42 2.8

.50 1.'
.49 1.1
.50 1.i

.42 2.1
.46 2.]
.46 2.1

.57 1.5

.44 2.4
.47 2.4

.34 1.9
.34 1.9

.37 2.C

.40 --
.30
.35

.38
.34
.30 --

.62 2.5

.44 1.2
.53 1.2

.45 1.6
.50 1.6


20

56
56
56

38
38
8

34

0
'0
0

.2
.2
.2

0

[6
16

>6
,6

10











;4





8
8


1.60

1.28
1.28
1.28

2.88
2.88
2.88

2.20

1.80
1.80
1.80

2.16
2.16
2.16

3.00

3.72
3.72

4.32
4.32

2.40

--
--

--

--
--

--

2.14

2.00
2.00

1.68
1.68






Leaf Composition**


N K P C


6-7


A10

A10A
A1OB
A1OC

A10A
A1OB
A1OC

A15

A15A
A15B
A15C

A15A
A15B
A15C

A17

A17

A17

A18

A18

A18

A19

A19A
A19B

A19A
A19B

A22

A22A
A22B

A22A
A22B

A23

A23

A23


2.80

2.88
2.90
2.88

2.45
2.45
2.36

2.96

2.64
2.78
2.97

2.48
2.51
2.54

2 92

2.94

2.63

2.65

2.87

2.69

2.68

2.80
2.82

2.60
2.63

2.50

2.35
2.64

2.66
2.69

3.06

2.78

2.72


2.21

2.18
2.12
1.75

2.12
2.12
2.12

2.13

1.38
1.75
1.82

2.26
1.88
2.12

2.46

2.21

1.76

2.25

2.25

1.88

2.19

2.00
2.00

1.88
1.88

2.25

1.32
1.63

2.12
1.88

2.46

2.04

1.76


Fertilizer
Applied/tree
N K20


Grove
No.


lb.


Age

Years


-4-


Season*


6- 7


6 7


6- 7


Ruby

.15

.13
.15
.15

.13
.14
.12

.15

.13
.14
.14

.14
.14
.13

.15

.15

.15

.15

.14

.15

.13

.13
.15

.15
.15

.16

.13
.11

.17
.16

.14

.14

.15


Re


3

3
3
3


3




2

3
3




2


3
3

3








2








4
3

2
2



3

3


a. Mg
% %
id on Rough

.07 .49

.05 .50
.23 .50
.28 .56

1.00 .46
.75 .52
2.75 .52

.96 .42

.47 .57
1.84 .59
.68 .47

.88 .45
.88 .46
.88 .46

1.16 .34

.89 .42

.62 .48

.89 .60

i.58 .50

.00 .43

.32 .66

,09 .60
.02 .60

.38 .52
.12 .57

.67 .58

.02 .68
.70 .63

!.75 .52
.75 .52

.46 .45

.28 ..60

1.00 .52


lb.
Lemon

2.44

2.16
2.16
2.16

2.72
2.72
2.72

2.62

2.58
2.58
2.58

3.30
3.30
3.30

2.00

2.76

1.36





2.64







2.64
2.64

1.41

1.74
1.74

2.92
2.92

2.76

1.97

2.03


2,87 8

2.02 9
2.02 9
2.02 9

2.94 10
2,94 10
2.94 10

2.68 9

2.70 10
2.70 10
2.70 10

4.80 11
4.80 11
4.80 11

2.13 6

1.93 7

1.86 8

-- 10

-- 11

3.20 12

-- 7

-- 8
-- 8

3.20 9
3.20 9

1.33 5

1.50 6
1.50 6

3.44 7
3.44 7

3.20 7

1.90 8

2.23 9






Grove
No.


A24

A24

A24

A32

A32

A32

A33

A33

A33

A35

A35A
A35B
A35C

A35A
A35B
A35C

A36

A36

A36


Leaf Composition**


2.48

2.40

2.40


2.48

2.40

2.40


1.20 1.00

1.41 1.54


Age

Years


- 5

- 6

- 7

-5

- 6

-7

- 5

- 6

-7

- 5

-6


Season*


I


6-7


- 5

- 6

- 7


2.63

2.56

2.54

2.66

2.64

2.36


2.25

1.88

2.00

2.38

1.94

2.00


.15

.11

.14

.14

.12

.16


3.52

3.77

3.00

2.78

3.39

3.12


.52

.51

.45

.45

.56

.43


-5-


I l


N K P Ca Mg
% % % % %
Ruby Red on Rough

2.65 1.54 .19 3.95 .54

3.05 1.75 .15 3.70 .48

2.82 2.26 .19 2.75 .48

3.00 2.19 .15 3.09 .49

2.77 1.69 .14 3.16 .47

2.17 2.12 .16 2.50 .40

2.58 2.69 .14 2.91 .46

2.82 1.88 .14 2.94 .61

2.63 2.12 .16 2.50 .48

2.69 1.88 .15 3.07 .66

2.96 2.38 .14 2.76 .56
2,78 2.08 .14 2.76 .51
2.95 2.38 .14 3.00 .53

2.54 2.12 .14 3.62 .54
2.45 2.12 .14 3.38 .39
2.36 1.76 .14 3.75 .48

2.69 2.17 .14 3.03 .52

2.79 2.19 .12 2.89 .46

2.33 1.62 .13 4.12 .52


Fertilizer
Applied/tree
N K20
lb. lb.
Lemon

2.78 1.32

..65 .60

1.64 .70

3.04 3.36

2.64 2.72

1.90 2.46

1.88 1.72

1.68 1.68

1.68 1.68

1.32 1.96

3.68 4.05
3.68 4.05
3.68 4.05

3.45 2.61
3.45 2.61
3.45 2.61

.82 .80

2.40 2.40

3.70 3.70






Season*


Leaf Composition**
N K P Ca Mg
% % % % %


Fertilizer
Applied/tree
N K20
lb. lb.


- 5

- 6


Grove
No.


Age

Years


6-7


B7

B7A
B7B
B7C

B7A
B7B
B7C

B9

B9

B9

B13

B13A
B13B
B13C

B13A
B13B
B13C

B16

B16

B16

B19

B19

B19

B24

B24A
B24B

B24A
B24B

B25

B25

B25


- 5

- 6

- 7

- 5

- 6


6- 7


2.37

2.64
2.82
2.54

2.33
2.54
2.42

2.70

2.69

2.39

2.58

2.80
2.88
2.55

2.57
2.69
2.57

2.62

2.99

2.78

2.72

2.51

2.26

2.70

2.77
2.54

2.30
2.05

2.81

3.05

2.36


1.88

1.63
1.69
1.75

1.62
1.88
1.88

2.38

2.21

2.62

1.34

1.63
1.75
1.21

2.00
2.00
2.00

2.88

2.44

2.26

2.12

1.57

2.00

1.63

1.75
1.50

1.62
1.62

2.44

2.28

2.38


Ruby

.15

.13
.14
.12

.14
.13
.12

.14

.13

.15

.14

.13
.13
.14

.14
.15
.15

.15

.14

.14

.12

.12

.15

.10

.13
.12

.14
.13

.10

.12

.13


Red on

4.29

4.09
3.86
3.68

3.88
3.38
3.75

3.21

3.19

3,00

3.80

3.55
3.28
3.52

2.75
2.75
2.75

2.87

3.12

3.25

3.37

2.98

2.50

3.32

2.62
2.98

2.75
2.75

2.78

2.89

2.12


6- 7


Rough

.45

.50
.48
.48

.45
.46
.48

.46

.47

.38

.54

.40
.42
.50

.45
.46
.42

.44

.46

.45

.55

.60

.50

.58

.49
.48

.54
.57

.43

.40

.45


Lemon

1.76

1.56
1.56
1.56

1.90
1.90
1.90

2.34

4.52

3.21

1.98

2.04
2.04
2.04

2.34
2.34
2.34



2.90

2.56

2.08

1.68

1.00

4.47

3.44
3.44

1.40
1.40

3.34

3.16

3.47


1.76 6

1.56 7
1.56 7
1.56 7

1.78 8
1.78 8
1.78 8

2.30 7

4,72 8

3.05 9

2.48 8

2.52 9
2.52 9
2.52 9

2.90 10
2.90 10
2.90 10

-- 7

2.28 8

2.24 9

-- 13

2.10 14

1.20 15

1.87 10

3.25 11
3.25 11

1.20 12
1.20 12

3.60 11

3.16 12

2.82 13







Season*


Leaf Composition**


N K P C


4-5

5- 6

6- 7

4- 5


-5

- 6

- 7

-5

- 6

- 7

- 5

-6

-7

- 5

- 6

- 7

- 5

- 6


2.82

3.07

2.69

2.74


Cl
C1

Cl

C1l

C2

C2

C2

C5B

C5B

C5B

C10

C10

C10

C13

C13A
C13B
C13C

C13A
C13B
C13C

C19

C19

C19


6- 7


- 5

- 6

- 7


B26

B26

B26

B27


2.00

2.00

2.12

1.25



2.33

2.00

2.00

2.25

1.94

1.62

1.82

1.67

1.62

2.50

2.13

2.00

1.17

1.54
1.46
1.42

1.25
1.38
1.62

1.92

2.25

2.12


R

3

3

3

3


2.41

2.63

2.69

2.40

2.45

2.63

2.77

2.80

2.11

2.46

3.06

2.66

2.42

2.34
2.74
2.69

2.20
2.23
2.30

2.39

2.59

2.58


Grove
No.


Ruby

.14

.12

.15

.11



.12

.13

.16

.13

.13

.14

.13

.13

.15

.15

.13

.14

.11

.12
.13
.12

.13
.14
.14

.14

.11

.14


2.88

3.00

3.38

3.93

3.05

3.75

3.09

2.98

3.25

2.58

3.59

3.25

4.90

3.86
3.64
4.04

3.88
3.25
3.12

4.54

2.89

3.12


-7-


Fertilizer
Applied/tree
N K20
lb. lb.
Lemon

2.62 2.22

1.28 1.23

2.61 3.05

2.36 1.20


Age

Years


.47

.48

.52

.50

.56

.58

.60

.62

.58

.43

.49

.43

.68

.52
.55
.63

.48
.50
.48

.59

.45

.46


.96

1.28

1.60

..96

1.28

1.60

.91

1.40

1.08

.60

2.02

3.05

3.75

5.45
5,45
5.45

3.77
3.77
3.77

.64

.50

2.80


aa. Mg
% %
.ed on Rough

1.37 .49

.32 .38

.00 .43

.86 .46


.96

1.28

1.60

.96

1.28

1,60

.91

.86

1.20

.24

2.25

2.80

1.03

1.38
1.38
1.38

1.15
1.15
1.15

.48

1.00

3.40








Leaf Composition**
N K P Ca.


Fertilizer
Applied/tree
N K20
lb. lb.


C21

C21A
C21B
C21C

C21A
C21B
C21C

C22A

C22A

C22A

C22B

C22B

C26

C28

C33

C33

C33

C34

C34

C34

C37

C37

C37

C50

C50A
C50B

C50A
C50B

C51B


Grove
No.


Season*


Age

Years


- 5

- 6


6-7


2.73

2.82
2.78
2.92

2.60
2.66
2.66

2.66

2.91

2.72

2.81

2.90

2.65

2.61

2.45

2.93

2.54

2.65

3.11

2.42

2.58

2.78

2.30

2.31

2.50
2.60

2.11
2.08

2.57


- 5

- 6

- 7

- 5

- 6

- 5

- 5

- 5

- 6

-7

- 5

- 6

- 7

- 5

- 6

- 7

- 5


5- 6


6-7


4- 5


1.75

1,63
1.63
1.63

2.88
2.50
2.38

2.06

2.71

2.38

2.44

2.25

2.12

2.06

1.79

1.92

2.00

2.24

2.32

1.88

2.44

2.20

2.00

1.13

1.38
1.50

2.50
1.50

2.00


I*


Ruby

.14

.12
.11
.11

.14
.14
.15

.12

.13

.15

.14

.12

.12

.12

.12

.13

.14

.13

.13

.14

.14

.12

.15

.12

.13
.14

.14
.13

.12


Red on

3.95

4.34
4.27
4.04

2.50
3.00
3.00

3.59

2.96

2.38

3.52

3.12

2.96

3.28

4.38

4.02

3.75

3.37

3.00

3.75

2.73

3.07

3.00

5.11

4.74
3.84

3.38
3.88

3.73


%
Rough

.46

.51
.42
.50

.39
.40
.40

.50

.35

.46

.41

.48

.37

.42

.51

.50

.52

.44

.48

.57

.53

.53

.57

.59

.58
.65

.50
.57

.60


Lemon

2.04

3.36
3.36
3.36

3.35
3.35
3.35

1.98

4.10

4.96

1.88

4.10


2.28

1.98

3.12

2.74

2.52

3.94

1.36

1.60

2.20

2.03

1.28
1.28

2.72
2.72

2.01


2.16 8

2.72 9
2.72 9
2.72 9

3.74 10
3.74 10
3.74 10

2.72 8

4.72 9

3.00 10

2.56 9

4.72 10

-- 9

-- 7

3.12 7

2.81 8

3.20 9

3.82 8

3.56 9

4.20 10

2.00 6

2.10 7

2,32 8

.30 4

1.44 5
1.44 5

.80 6
.80 6

2.01 7


Mg







Leaf Composition**


C52A

C52A

C52A

C53

C53

C53

C54

C54

C54

C56

C57

C57

C57

C59

C59

C59

C60

C60

C60

C64


- 5

- 6

- 7

- 5

-6

-7

- 5

- 6

-7

- 5

- 5

- 6

- 7

- 5

- 6

- 7

- 5

- 6

-7

-7



- 5

-6

-7


1.88

1.50

1.76


3.39

3.52

3.88


.60

.51

.57


Grove


2.54

2.01

2.41


2.54

2.01

2.41


Season*


N K P Ca Mg
% % % % %7
Ruby Red on Rough

2.44 1.88 .14 4.50 .67

2.91 2.12 .13 3.25 .58

2.39 1.76 .13 3.88 .57

2.46 1.88 .12 3.46 .55

2.74 2.00 .11 3.52 .57

2.51 2.00 .14 3.12 .58

2.68 2.12 .13 3.82 .64

2.66 2.00 .12 3.37 .49

2.45 2.00 .14 3.00 .39

1.95 1.38 .14 4.81 .50

2.51 1.63 .13 4.02 .68

2.69 1.82 .11 3.57 .60

2.60 1.88 .14 3.62 .52

2.65 2.00 .14 3.84 .56

2.65 1,88 .12 3.80 .47

2.45 2.12 .15 3.25 .33

2.66 1.38 .12 4.09 .49

2.80 2.00 .13 3.66 .51

2.39 2.00 .17 3.25 .50

2.63 2.26 .14 3.62 .38


2.48

2.74

2.36


Fertilizer
SApplied/tree
N K20
Ib. lb.
Lemon

2.10 2.10

1.68 1.68

2.60 1.80

2.44 3.30

1.86 2.63

3.48 3.36

2.76 2.76

2.96 2.96

2.20 2.20

.60 .40

2.56 2.56

2.72 1.92

2.76 3.96



2.12 1.80

3.20 3.20

2.22 .90

2,14 2.10

2.14 2.10

2.70 2.50


Age








Leaf Composition**
N K P Ca.


4- 5


D2

D2

D3

D3

D3

D4

D4

D4

D7

D15

D15

D15

D19

D19

D19

D25

D25

D25

D26

D26A
D26B
D26C

D26A
D26B
D26C


- 6

-7

- 5

- 6

-7

- 5

- 6

-7

- 5

- 5

- 6

-7

-5

- 6

- 7

- 5

-6

- 7

- 5

- 6


2.30

2.61

2.45

2.33

3.03

2.94

2.39

3.02

2.60

2.48

2.46

2.64

2.48

2.04

2.31

1.84

2.28

2.39

2.23

2.41

2.54
2.40
2.35

2.23
2.39
2.08


Grove
No.


-10-


Season*


1.00

1.13

1.50

1.25

1.75

1.00

1.88

2.19

2.00

2.25

1.75

1.82

2.00

1.38

1.92

2.26

1.75

2.00

1.38

1.25

1.75
1.69
1.32

2.88
2.62
2.88


Age

Years


6-7


%
Ruby

.13

.12

.17

.18

.12

.12

.17

.14

.15

.14

.14

.12

.13

.15

.16

.14

.23

.14

.13

.16

.14
.15
.15

.22
.18
.32


%
Red on

4.99

5.22

3.88

4.77

3.21

3.88

4.25

4.02

3.88

3.34

3.93

3.77

3.75

5.81

4.04

3.88

4.59

3.41

4.75

5.38

4.07
3.68
4.68

3.25
4.00
3.25


Fertilizer
Applied/tree
Mg N K20
% lb. lb.
Rough Lemon

.55

.52 --

.45

.43

.34

.38

.50

.48

.42

.50 1.60 1.60

.53 1.50 1.50

.46 3.00 3.60

.46 -- -

.32

.25 -- -

.24 1.32 1.96

.32 1.20 3.20

.30 -- -

.25 -- -

.40 1.68 1.36

.43 ..80 .80
.41 .80 .80
.43 .80 .80

.32 -- -
.29
.29








Leaf Composition**
N K P Ca.


% % %
Ruby


Red on
Red on


Fertilizer
Applied/tree
Mg N K20
% lb. lb.


Rough


Lemon


D32

D32

D32

D34

D34

D34

D35

D35

D35

D38

D38

D38

D39

D39

D43

D43

D43

D44

D44

D44

D49

D52

D52

D52

D53

D53

D53A
D53B


- 5

- 6

-7

-5

-6

-7

- 5

- 6

-7

- 5

- 6

-7

-5

- 7

-5

- 6

-7

- 5

- 6

-7

- 5

-5

-6

- 7

- 5

-6

-7


2.62

2.44

2.30

2.51

2.66

2.08

2.52

2.46

2.51

2.66

2.26

2.48

2.43

2.57

2.04

2.51

2.57

2.18

2.74

2.57

2.37

2.29

2.89

2.48

2.26

2.54

1.83


2.48 1.88 .15


Grove
No.


Season*


Age

Years


1.88

1.26

2.12

2.63

2.29

2.12

1.38

1.29

2.26

2.21

1.75

2.26

2.38

2.38

1.79

1.92

2.12

1.13

1.26

2.00

2.12

1.75

2.25

2.38

1.88

1.63

1.13


.17

.13

.14

.15

.13

.14

.16

.11

.14

.19

.13

.16

.16

.13

.22

.14

.15

.12

.13

.16

.16

.13

.13

.14

.19

.14


4.38

5.04

4.50

3.16

3.05

3.38

4.43

4.02

3.62

3.61

3.28

3.25

3.16

3.25

3.23

3.50

3.88

4.43

3.00

3.25

3.82

4.68

3.91

3.38

3.42

3.52

6.12
3.75
-11-


.44

.39

.39

.44

.38

.35

.60

.64

.43

.50

.54

.58

.50

.54

.56

.52

.46

.49

.65

.57

.31

.33

.37

.22

.49

.51

.20
.40


1.44

.80

.80

1.12

1.60

1.60

1.50

1.80

1.80

1.10

1.30

1.60

.36

--

.40

1.20

1.32

.60

1.02

1.68

.90

1.64

2.24

2.24

.40

1.20

1.32
1.32


1.44

.80

.80

1.68

2.90

2.60

1.50

2.10

2.10

1.40

2.10

2.40

.52


.64

1.40

1.76

.60

1.02

1.26

1.40

1.30

1.78

1.68

.69

1.40

1.76
1.76







Leaf Composition**
N K P Ca.


A8

A8

A8

A20

A20A
A20B

A20A
A20B

A30

A30

A30

A34

A34A
A34B
A34C

A34A
A34B
A34C

C18

C18

C18

C39

C39

C39

C40

C45

C45

C45

C51A


- 5

-6

-7

- 5

- 6


2.48 1.75 .14


-1


Grove
No.


-12-


Season*


6-7


- 5

- 6

-7

-5

- 6


6-7


- 5

-6

-7

- 5

- 6

-7

- 5

- 5

- 6

-7


4- 5


% %

2.61 1.69

2.83 2.12

2.48 2.00

2.80 1.84

2.90 2.17
2.64 2.07

2.63 1.76
2.66 1.88

2.88 2.25

2.88 1.75

2.48 1.50

2.79 2.38

2.56 2.13
2.81 2.01
2.81 2.18

2.63 2.26
2.69 1.88
2.45 2.26

2.71 1.50

2.66 1.75

2.33 1.25

2.33 1.63

2.78 2.25

2.14 1.76

2.67 1.63

2.41 1.38

2.32 1.50

2.20 1.38


%
Ruby
.14

.12

.14

.13

.12
.14

.15
.16

.15

.13

.14

.14

.12
.13
.13

.15
.15
.16

.15

.12

.14

.12

.12

.14

.12

.17

.11

.14


%
Red on
4.38

4.09

3.38

3.55

2.94
2.98

3.62
3.00

3.19

3.91

4.12

3.25

3.41
3.28
3.50

3.12
3.25
3.25

4.50

3.77

3.88

4.36

3.50

3.38

3.50

4.34

4.09

4.50

3.52


Fertilizer
Applied/tree
Mg N K20
% lb. lb.
Sour Orange
.45 3.78 2.88

.35 3.04 3.24

.39 3.36 2.52

.63 4.24 2.64

.53 2.56 3.20
.53 2.56 3.20

.52 3.36 3.36
.52 3.36 3.36

.46 2.16 3.24

.45 2.86 4.41

.43 1.92 2.40

.48 3.36 4.16

.46 3.52 3.52
.48 3.52 3.52
.53 3.52 3.52

.43 3.92 4.88
.42 3.92 4.88
.43 3.92 4.88

.64 1.72 1.28

.61 2.24 2.24

.52 1.92 1.92

.64 2.58 3.04

.50 2.40 3.40

.52 3.64 3.36

.47 .92 1.16

.63 2.56 2.56

.52 2.56 2.86

.50 3.16 3.16

.58 2.01 2.01


Age

Years

13

14

15

10

11
11

12
12

8

9

10

11

12
12
12

13
13
13

8

9

10

13

14

15

5

7

8

9

7






Fertilizer
position** Applied/tree
P Ca Mg -N K O
% % % lb. 15.


Age

Years


Sour Orange
.40 3.12 2.60 14

.37 3.96 -- 15


C64

C64


D10

D10

D13

D13

D13

D14

D14

D14

D17

D17

D17

D18

D18

D18

D22

D22

D22

D23

D23

D23

D47

D47

D47


4- 5

5- 6


- 6

-7

-5

- 6

-7

- 5

- 6

-7

- 5

- 6

- 7

- 5

- 6

-7

-5

- 6

-7

-5

- 6

- 7

- 5

- 6

-7


2.42

2.93


2.65

1.93

2.81

2.35

2.36

2.65

2.18

2.48

1.91

2.13

2.02

2.06

2.31

2.23

2.30

2.35

2.33

2.48

2.18

2.05

2.37

2.37

2.14


2.50

2.00


2.21

1.76

1.50

1.00

1.76

1.46

1.00

1.88

1.00

1.00

1.62

1.25

..88

1.13

1.88

2.32

1.62

1.88

1.38

1.13

1.88

1.75

1.76


.15

.13

.24

.11

.14

.22

.11

.13

.11

.12

.13

.14

.12

.12

.13

.13

.12

.14

.12

.12

.15

.13

.12


3.28

3.88

3.28

3.84

3.88

3.34

4.25

4.00

7.40

6.42

3.50

6.47

6.84

5.38

5.10

3.57

4.00

4.85

6.14

5.25

4.60

4.31

4.50


Season*


Grove
No.


.49

.46

.66

.70

.54

.66

.68

.54

.31

.34

.31

.36

.27

.24

.35

.39

.36

.29

.38

.26

.26

.33

.23


1.70

3.20

1.50

--




1.50








.72


1.00 1.20


Leaf Con


1.00

1.60

1.50





1.50


1.20

1.14

1.03

1.48

1.60

2.00


Ruby
.12

.11


--

3.20

2.01

1.77

2.20

3.20

2.80


Red on
3.28

3.64


.64


-13-






Fertilizer
Leaf Composition** Applied/tree
N K P Ca Mg N K20
% % %l % % lb. lb.


Sour Orange
.25 2.10

.27 1.20

.26

.56 .80

.29 .36

.25 .90


2,70 7

2.80 8

7

.32 7

.48 8

1,32 9


Ruby Red on Cleopatra
B28 5 6 3.11 2,09 .13 3,16 .46 3,60. 3.32 13

B28 6 7 2.60 1,88 .15 3.00 .52 3.12 2.52 14

B31 5 6 2.86 1.75 .10 3.55 .41 -- 14


-Ruby Red on Sweet Orange

A39 5 6 3.07 1.75 .11 3.28 .53 4.16 4.76 13

A39 6 7 2.39 2.26 .13 2.75 .43 3.36 3.36 14

B14A 5 6 2.77 2.21 .11 3.50 .43 1.60 2.40 11
B14B 2.78 2.00 .11 3.70 .29 1.60 2.40 11

B14A 6 7 2.51 1.76 .13 3.38 .42 2.96 3.54 12
B14B 2.45 1.88 .13 3.38 .36 2.96 3.54 12


Pink Seedless on Rough Lemon


6- 7


2.76

2.68
3.10

2.78
2.66

2.55

2.63

2.14


1.88

2.13
2.17

1.88
2.26

2.38

2.19

2.50


.15 4.02

.13 3.21
.14 3.00

.14 3.88
.14 3.25

.13 4.56

.11 4.20

.11 3.38


.50

.36
.46

.42
.46

.26

.37

.34


3.32

3.88
3.88

2.88
2.88

3.00


3.00


3.32

3.52
3.52

1.20
1.20

3.60



3.60


-14-


Grove
No.


Season*


D50

D50

D54

D56

D56

D56


Age

Years


2.15

1.90

2.12

2.51

2.57

1.93


1.38

1.13

1.01

1.44

1.31

1.13


Ruby
.14

.13

.13

.12

.12

.10


Red on
7.11

6.89

7.23

4.02

5.42

5.62


A4

A4A
A4B

A4A
A4B

A7

A7

A7


*


- --' I








Grove
No.


2.67

2.74
2.71

2.45
2.51

2.86

2.57
2.43

2.45
2.33

2.71

2.63
2.69

2.48
2.45


2.94

1.92
2.12

2.88
2.76

2.94

2.50
1.88

2.50
2.50

3.01

2.12
2.18

2.38
2.50


.14

.10
.12

.14
.13

.13

.11
.11

.14
.13

.14

.12
.12

.13
.13


2.80

3.23
2.98

2.12
2.25

2.33

2.67
3.16

2.25
2.75

2,71

2.98
3.09

2.38
2.38


.47

.53
.48

.43
.48

.40

.44
.52

.40
.39

.43

.55
.55

.42
.45


Fertilizer
Applied/tree
N K20
lb. lb.


Age

Years


A13

A13

A13

A14

A14

A14

A16

A16

A16

A21

A21

A21


-15-


- 5

-6

- 7

- 5

- 6

-7

- 5

-6

-7

- 5

- 6

-7


Season*


- I ---


4- 5

5- 6


6-7


B1

B1A
BIB

BIA
BlB

B3

B3A
B3B

B3A
B3B

B4

B4A
B4B

B4A
B4B


6-7


6- 7


. Leaf Composition**


N K P Ca Mg
% % % % %

Pink Seedless on Rough

2.79 3.37 .13 2.08 .34

3.03 2.88 .11 2.24 .33

2.57 3.00 .12 2.25 .34

2.76 3.04 .14 2.21 .37

3.10 2.50 .11 2.44 .36

2.30 2.26 .11 2.25 .36

2.70 3.04 .13 2.44 .30

2,97 3.01 .13 2.55 .36

2.39 2.62 .13 2.12 .39

2.73 2.62 .13 3.46 .32

2.97 1.94 .13 3.46 .29

2.60 3.00 .13 2.38 .24


Lemon

3.06

3.60

3.26

3.12

3.60

3.16

1.92

3.92

3.60

3.22

3.42

3.90



3.24

2.98
2.98

3,00
3.00

3.24

2.98
2.98

3.00
3.00

3.24

2,98
2.98

1.80
1.80


3.06 15

3.60 16

3.48 17

3.12 15

3.60 16

3.36 17

1.92 19

6.24 20

4.20 21

4.56 18

4.22 19

4.80 20



3.50 10

2,98 11
2.98 11

2.82 12
2.82 12

3.50 13

2.98 14
2.98 14

2.82 15
2.82 15

3.50 13

2,98 14
2.98 14

2.82 15
2.82 15







Leaf Composition**
N K P Ca Mg
P% % % % %
Pink Seedless on


Fertilizer
Applied/tree
N K2O
lb. ib.
Rough Lemon


3.93 .49 2.66

3.89 .46 2.58
3.57 .50 2.58
3.73 .45 2.58

3.25 .52 2.40
3.00 .50 2.40
3.12 .54 2.40

2.60 .43 3.24

3.05 .56 2,98

3.00 .46 3.00


B8

B8A
B8B
B8C

B8A
B8B
B8C

B15

B15

B15

B17

B17

B17

B20

B20

B20

B29

B29

B29


2.61

2.25
2,38
2.63

2.51
2.54
2.45

2.70

2.80

2.33

2.71

2.91

2.82

2.66

2.82

2.54

2,77

3.07

2.66


6- 7


2.00

1.75
1.88
1.69

1.76
2.00
1.88

3.12

2.50

2.26

3.06

2.25

2.38

2,12

1.94

2.00

2,44

2.21

2.38



1,63

1.50

1.38

2.44

2,13

2.38


-16-


Grove


Season*


Agea
Years


- 5

- 6

-7

- 5

- 6

- 7

- 5

- 6

-7

- 5

6

- 7


.14

.11
.11
.12

.13
.14
.14

.15

.12

.12

.15

.13

.14

.14

.13

.14

.14

.11

.15



.13

.12

.16

.14

.12

.14


2.90

2.56

3.57

1.78

2.46

1.50

2.52

2.76



.91

1.40

1.08

1.56

3.60

2.78


.43

.50

.46

.52

.59

.52

.49

.37

.39


2.74

2.60

2,11

2.75

2,99

2.30


3,12

3.07

3.62

3.52

3,52

2,50


2,80

3.28

3.00

2.89

3.55

2.75

2.76

2.64

2.75


2.66

2.58
2.58
2.58

2.24
2.24
2.24

3.50

2.98

2.82


2.28

2.24

3.59

2,38

2.41

1.40

2.68

2.60



.91

.86

1.20

1.56

3,60

2.16


C5A

C5A

C5A

C6

C6

C6


- 5

-6

-7

- 5

- 6

- 7


- --- -"- --~-- ~ ~-'-I-I







Leaf Composition**_


K P Ca


C7

C7

C7

C8

C8

C8

Cll

CIl

Cll

C12B

C12B

C12B

C14

C14

C14

C15

C15

C15

C16

C16A
C16B

C16A
C16B

C17

C17

C17


- 5

-6

-7

- 5

- 6

-7

- 5

- 6

- 7

- 5

-6

-7

- 5

- 6

- 7

- 5

- 6

- 7

- 5

- 6


Grove
No,


Fertilizer
Applied/tree
N K20
lb. lbs.


2.82

3.05

2.48

3.00

3.00

2.48

2.63

2.77

2.57

2.27

2.74

2.60

2.71

2.68

2.30

2.45

2.66

2.33

2.35

2.64
2.71

2.60
2.23

2.73

2.62

2.57


~-~-- 'I-


*


-17-


Age

Years


B


% %
Pink

2.42 .12

2.32 .12

2.26 .14

2.50 .11

2.63 .10

1.50 .11

2.38 .13

2.25 .11

2.00 .12

2.25 .15

2.50 .12

1.76 .13

2,56 .12

1.63 .10

1.76 .11

1.13 .12

1.25 .12

1.13 .14

1.38 .15

1.71 .12
1.75 .12

1,76 .14
1.38 .13

2.19 .13

1.94 .10

1.50 .13


Season*


%
Seedless

3.19

2.98

2.25

2.67

2.53

3.25

3.82

3.30

2.88

4.09

3.48

3.38

3.55

4.13

4.12

4.86

4.68

3.88

5.04

3.52
3.59

3.38
4.12

3.52

3.28

3.00


6- 7


- 5

- 6

- 7


Mg
%
on Rough

.51

.48

.39

.42

.38

.45

.45

.52

.32

.48

.37

.45

.48

.44

.36

.58

.50

.48

.48

.48
.50

.43
.43

.46

.47

.46


4.23

None



1.03

.92

1.00

1.54

2.10
2.10

2.16
2.16

1.92

2.72

2.40


Lemon

1.56

3.60

2.78

5.30


1.56 8

3.60 9

2.16 10

9.75 15


4,12 3.90

2.93 2.28

3.54 6.14

2.70 3.00

1.73 1.22

2.50 3.86


3.22

2.97

4.04

3.75

2.97

4.74

1.71

1.80
1.80

3.06
3.06

3.12

2.72

2,40







Leaf Composition**
N K P Ca Mg
% % % % %


Fertilizer
Applied/tree
N KO
lb. 15.


4-5

5- 6







6- 7


Grove


Season*


Age

Years


C24

C24A
C24B
C24C
C24D
C24B


C24C
C24D

C25

C25A
C25B

C25A
C25B

C29

C29A
C29B
C29C

C29A
C29B
C29C

C30

C30

C30

C31

C31

C31

C35

C35

C35


6- 7


6-7


2.37

2.67
2.50
2.63
2.48
2.41


2.51
2.42

2.65

2.33
2.41

2.54
2.51

2.42

2.69
2.64
2.62

2.30
2.36
2.30

2.48

2.71

2.11

2.55

2.71

2.20

2,65

2,46

2.45


1.38

2.00
2.25
2.21
2.32
2.12


1,62
1,50

1.88

2.00
1.75

1.76
1.62

1.67

1.63
1.75
1,63

1.62
1.62
1.88

1,63

1.75

1.62

1.75

1.50

1,62

2.38

2,12

1.62


- --


Pink

.13

.11
.11
.12
.12
.12


.14
.13

.15

.11
.12

.14
.14

.12

.12
.11
.11

.13
.14
.14

.13

.11

.14

.13

.12

.14

.12

.12

.16


-18-


Seedless

5.20

3.00
2.96
2.87
3.00
2.87


3.38
4.12

4.11

2.78
3.28

3.25
4.00

4.13

3.68
3.48
3.75

4.00
4.00
'3.88

4.09

3.68

4.12

3.80

3.68

4.00

3.41

3,66

3.75


on Rough

.52

.33
.30
.32
.32
.33


.45
.43

.47

.39
.40

.42
.45

.42

.41
.41
.42

.43
.52
.46

.51

.41

.48

.53

.48

.50

.34

.27

.30


Lemon

2.19

2,46
2.46
2.46
2.46
2.46


4.02
4.02

1.60

1.80
1.80

3.00
3.00

1.66

1.80
1.80
1.80

3.00
3.00
3.00

2.13

2.16

2.70

1.66

1,98

3.06

1.28

2.20

1.40


2.04 13

2.16 14
2.16 14
2.16 14
2.16 14
2.16 14


1.05 15
1.05 15

1.46 8

1.80 9
1.80 9

.70 10
.70 10

1.54 7

1.80 8
1.80 8
1.80 8

.70 9
.70 9
.70 9

2.04 13

2.16 14

1.80 15

1.54 7

1.98 8

2.16 9

2.56 8

4,00 9

2.40 10








Leaf Comparison**


C36

C36A
C36B

C36A
C36B

C41

C41

C41

C42

C42

C42

C43

C43

C43

C52B

C52B

CS2B

C61

C61

C61

C63

C63

C63

C65

C65


Fertilizer
Applied/tree
N K20
lb. lb.


6- 7


Age

Years


-19-


Grove
No.


C65


Season*


- 5

- 6

- 7

- 5

- 6

-7

- 5

- 6

-7

- 5

- 6

- 7

-5

-6

- 7

- 5

- 6

- 7

- 5

- 6


6- 7


N K P Ca Mg
% % % % %
Pink Seedless on Rough
2.66 2.38 .12 3.14 .41

2,95 2.38 .12 2.80 .36
2.81 2.25 .11 2.94 .42

2.33 2.75 .15 2.25 .39
2.45 2.88 .16 2.38 .42

2.62 2.06 .13 3.14 .42

2,65 2.33 .14 3.12 .47

2.20 2.12 .16 3.12 .40

2.60 1.76 .14 3.77 .58

2.69 2.00 .13 3.89 .54

2.39 1.88 .14 3.12 .54

2.70 2.25 .15 2.51 .53

2.60 1.76 .13 3.46 .55

2,45 2.38 .14 2.75 .45

2.62 2.00 .13 3.75 .66

2.77 2.00 .12 3.34 .59

2.45 1.88 .13 3.38 .58

2.68 2.08 .12 3.93 .53

2.73 1.63 .12 4.74 .42

2.33 1.76 .13 4.00 .36

2.50 2.38 .14 3.05 .45

2.81 2.38 .13 3.09 .52

2.23 2.75 .15 3.25 .54

2.47 1.75 .11 4.43 .55

2.86 2.38 .13 3.48 .46

2.20 1.38 .13 3.88 .57


Lemon

3.34

3.88
3.88

4.52
4.52

1.12

1.52

1.20

1.44

1.68

2.04

1.68

2.16

1.64

2.10



2.60



2.22

1.92

1.82

2.02

2.78

2.25

1.92

2.78


4.60 16

5.08 17
5.08 17

4.32 18
4.32 18

2.24 7

2.64 8

2,00 9

1.92 5

2.24 6

2.36 7

2.24 8

2.88 9

1.84 10

2o10 9

-- 10

1.80 11

-- 13

2.46 14

1.92 15

2.50 8

2.68 9

2.94 10

1.00 9

2.16 10

3.48 11







Leaf Composition**


N K P Ca


Grove
No.


Fertilizer
Applied/tree
N K20
lb. lb.
Lemon

1.50 1.50


Dll

Dll

D11

D12

D12

D12

D31

D31

D31

D37


% % %
Pink

2.52 1.84 .13

2.34 1.38 .10

2.39 2.26 .13

2.70 2.06 .12

2.51 2.12 .11

2.48 2.38 .12

2.71 2.62 .14

2.53 2.00 .12

2.39 2.50 .12

2.56 1.75 .13


- 5

- 6

-7

- 5

-6

-7

- 5

- 6

-7

-5


?ink Seedless on Sou:



.12 2.69 .58

.11 4.34 .53

.11 3.66 .53

.13 3.38 .48

.11 3.52 .80

.12 3.34 .75

.14 3.00 .57



.13 5.72 .25

.11 4.52 .28

.10 5.25 .18


r


-20-


%
Seedless

3.79

4.31

3.12

3.81

3.52

3.25

3.07

2.96

3.25

4.19


Season*


Age

Years


Mg
%
on Rough

.50

.51

.36

.38

.43

.45

.35

.36

.43

.47


1.80

3.20


]


C20

C20

C48

C48

C48

C49

C49

C49

C66

D16

D16

D16


-5

-6

-5

-6

-7

-5

-6

- 7

- 6

-5

- 6

- 7


m--

2.89

2.18

2.48

2.23

2.40

2.69

2.51



2.07

2.28

1.71


2.25

1.63

1.92

2.00

1.57

1.75

1.50



2.21

2.07

2.00


.72

1.20

1.86

2.64

3.30

2.20

2.16

2.00

2.00


Orange

.98

.60

1.86

2.28

2.90

2.28

2.16

2.00

2.80






2.28


5

6

S15

16

17

8

9

10

16

16

17

18


3.56


. m


1.50


1.50
1.50


1.80

3.36


--


*







Grove
No.


Season*


D20 4- 5

D20 5 6

D20 6- 7

D21 4- 5

D21 5- 6

D24 4- 5

D24 5 6

D24 6- 7

D29 4- 5

D29 5- 6

D29 6 7


Leaf Composition**


N K P Ca


% % %
Pink

2.50 1.38 .16

2.38 1.00 .14

1.68 1.25 .12

2.77 1.50 .19

2.84 2.32 .15

2.34 1.92 .14

2.28 2.44 .14

2.11 1.88 .14

2.38 2.12 .22

2.64 1.25 .15

2.02 1.88 .13


Fertilizer
Applied/tree
N K20
lb. lb.


Orange

--


%
Seedless

4.64

4.41

4.00

4.53

4.13

4.75

3.95

4.12

3.39

4.97

4.12


Mg
%
on Sour

.41

.49

.45

.15

.24

.19

.27

.31

.30

.41

.30


1.20 3.20


1.94

1.60

.80


--

1.30

2.20

.80


on Cleopatra

.36 2.50

.47 2.12

.43 3.20

.56 3.00

.45 3.90
.46 3.00


.52 2.56

.48 3.28


3.86 9

1.80 9

3.20 10

3.76 17

3.40 18
3.40 18


2.56

3.28


* The three seasons, 1954-55, 1955-56, and 1956-57 are designated as 4 5, 5 6,
and 6 7, respectively.

** On a dry weight basis.


-21-


Age

Years


C12A

C58

058

C66

C66A
C66B


- 6

-6

-7

- 6

-7


3.01

3.00

2.30

2.71

2.33
2.20


2.73

2.51


Pink

.12

.13

.16

.12

.14
.13


.11

.12


2.57

2.21

2.00

2.00

2.50
2.26


2.00

2.12


Seedless

3.46

3.52

3.62

3.64

3.25
3.38


3.23

3.25


D37

D37


I


1.55


1,55
1.55


*


*




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