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Group Title: ARC-A research report - Agricultural Research and Education Center - RH-1984-3
Title: Growth of foliage plants in various ratios of peat and sand while fertilized and irrigated at different levels
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Permanent Link: http://ufdc.ufl.edu/UF00066535/00001
 Material Information
Title: Growth of foliage plants in various ratios of peat and sand while fertilized and irrigated at different levels
Series Title: ARC-A research report
Physical Description: 6 p. : ; 28 cm.
Language: English
Creator: Poole, R. T ( Richard Turk )
Conover, Charles Albert, 1934-
Agricultural Research Center (Apopka, Fla.)
Publisher: University of Florida, IFAS, Agricultural Research Center-Apopka
Place of Publication: Apopka FL
Publication Date: 1984
 Subjects
Subject: Foliage plants -- Growth -- Florida   ( lcsh )
Peat soils -- Composition -- Florida   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
 Notes
Statement of Responsibility: R.T. Poole and Charles A. Conover.
General Note: Caption title.
Funding: Florida Historical Agriculture and Rural Life
 Record Information
Bibliographic ID: UF00066535
Volume ID: VID00001
Source Institution: Marston Science Library, George A. Smathers Libraries, University of Florida
Holding Location: Florida Agricultural Experiment Station, Florida Cooperative Extension Service, Florida Department of Agriculture and Consumer Services, and the Engineering and Industrial Experiment Station; Institute for Food and Agricultural Services (IFAS), University of Florida
Rights Management: All rights reserved, Board of Trustees of the University of Florida
Resource Identifier: oclc - 71303078

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HISTORIC NOTE


The publications in this collection do
not reflect current scientific knowledge
or recommendations. These texts
represent the historic publishing
record of the Institute for Food and
Agricultural Sciences and should be
used only to trace the historic work of
the Institute and its staff. Current IFAS
research may be found on the
Electronic Data Information Source
(EDIS)

site maintained by the Florida
Cooperative Extension Service.






Copyright 2005, Board of Trustees, University
of Florida







GROWTH OF FOLIAGE PLANTS IN VARIOUS RATIOS OF PEAT AND SAND
WHILE FERTILIZED AND IRRIGATED AT DIFFERENT LEVELS

Richard T. Poole and Charles A. Conover1
University of Florida, IFAS
Agricultural Research Center Apopka
ARC-A Research Report RH-84-3

Soil potting medium, fertilizer levels and frequency of irrigation
contribute to the quality of foliage plants during production. This
experiment was initiated to test 2 irrigation frequencies, 3 and 5 times
weekly; 2 fertilizer levels, 2 and 3 grams 14-14-14 per 4 inch pot and
4 combinations of Florida sedge peat and builder's sand; 100% peat; 95%
peat 5% sand; 85% peat 15% sand; and 75% peat 25% sand. The exper-
iment was started March 15, 1980, and data taken April 28 for Pilea
'Silver Tree' and Dieffenbachia picta, May 20 for Philodendron scandens
oxycardium, June 4 for Cordyline terminalis 'Baby Doll', July 18 for
Nephrolepis exaltata 'Fluffy Ruffle', and July 29 for Chamaedorea elegans.
Color grade, 1 = poor, 5 = excellent, and height, width, vine length or
leaf length was determined (Table 1). Chlorophyll content and leaf tissue
elemental analysis was determined for some plants (Tables 2,3,4).

Chamaedorea elegans Plants did not respond to the different levels
of irrigation or fertilizer and only slight response was obtained for the
soil mix. The palms appeared to grow best in the 95:5 and 85:15 mixtures
of peat:sand.

Cordyline terminals 'Baby Doll' Color grade and height was not
affected by treatments.

Dieffenbachia exotica Plants grew equally as well in all treatments
and chlorophyll levels did not change. Tissue levels also were not
affected by treatments, indicating that the plant has the ability to main-
tain proper levels at different environmental conditions.

Nephrolepis exaltata 'Fluffy Ruffle' Changing the soil mix or
fertilizer level did not change growth of fern, but watering was very
important, as the plants receiving the high levels of irrigation were
larger.

Philodendron scandens oxycardium Treatments did not affect growth,
chlorophyll content or tissue content.

Pilea 'Silver Tree' There was a slight improvement in color because
of increased fertilizer and water, but no response to different ratios of
peat:sand. Chlorophyll content remained unchanged but there was a slight
increase in tissue nitrogen, phosphorus and potassium content at the
higher fertilizer level.


1
Professor, Plant Physiology, and Professor and Center Director, ARC-Apopka,
respectively.







Summary Although 6 foliage plants were grown in 4 mixes with
different fertilizer levels and different irrigation frequencies, plant
response was the same to all treatments with the exception of Fern to
watering and Pilea to watering and fertilizer. Sand was proved to be
unnecessary as an ingredient of the soil mix except for slight benefit
to Chamaedora elegans. Chlorophyll and elemental leaf content
reflected growth response and remained the same under the different
growth regimes, indicating that these parameters do not indicate subtle
differences in growing conditions.


-2-






Table 1. Reaction of foliage plants to different irrigation frequencies and fertilizer levels while growing in
various ratios of a peat:sand mix.


Philodendron
Chamaedorea Cordyline Dieffenbachia Nephrolepis scandens Pilea
elegans terminalis exotica exaltata oxycardium 'Silver Tree'

Chloro- Vine Leaf Chloro- Chloro-
Treatments Color Ht. Color Ht. Color Ht. phyll Ht. Width len len phyll Color Ht. phyll
grade (cm) grade (cm) grade) (cc) (cm) mgcm (cm) (cm) (cm) (cm) (mg/cm2) grade (cm) (mg/cm2)

Percent
Peat:Sand
100 0 2.6 27 3.8 42 4.1 31 .062 39 47 52 13 .048 2.8 16 .054
95 5 3.5 32 3.4 39 4.2 31 .062 41 48 50 12 .045 3.1 16 .051
85 15 3.4 32 3.5 40 4.1 32 .061 39 49 51 13 .045 2.9 17 .050
75 25 2.8 30 3.4 41 4.2 31 .062 39 48 54 13 .046 3.2 17 .054

Irrigation/
Week
3 3.1 30 3.6 42 4.0 31 .061 39 49 53 13 .047 2.4 16 .055
5 3.1 31 3.4 40 4.3 32 .062 40 47 51 12 .046 3.6 18 .050

Osmocote
14-14-14
g/4" pot
2 3.0 30 3.5 40 4.2 30 .061 35 43 50 12 .046 2.8 17 .054
3 3.2 31 3.6 41 4.1 33 .062 44 53 54 13 .047 3.2 17 .051


Graded on a scale of 1 = poor,


5 = excellent.







Table 2. Tissue content of Dieffenbachia exotica after treatment with
varying irrigation frequencies and fertilizer levels while
growing in various ratios of a peat:sand mix.



% dry weight Parts per million

Treatments N P K Ca Mg Cu Fe Mn Zn


Percent
Peat:Sand

100 0 3.7 .64 2.6 1.4 1.5 14 159 67 47
95 5 3.5- .65 2.4 1.6 1.6 13 132 60 48
85 15 3.4 .53 2.2 1.9 1.8 14 141 72 48
75 25 3.6 .59 2.5 1.6 1.6 13 132 58 44


Irrigation/
week
3 3.4 .58 2.4 1.7 1.6 14 134 62 47
5 3.7 .62 2.4 1.5 1.6 13 148 66 48


Osmocote
14-14-14
g/4" pot
2 3.6 .54 2.5 1.6 1.6 13 138 63 48
3 3.5 .60 2.3 1.7 1.7 14 144 65 47


Average 3.6 .60 2.4 1.6 1.6 14 141 63 47








Table 3. Tissue content of Philodendron s. oxycardium after treatment
with varying irrigation frequencies and fertilizer levels
while growing in various ratios of a peat:sand mix.



% dry weight Parts per million
Treatments N P K Ca Mg Cu Fe Mn Zn


Percent
Peat:Sand

100 0
95 5
85 15
75 25


Irrigation/
week


3.2
3.0
2.9
2.8


168
205
183
230


320
304
263
191


175
175
192
169


2.5 .21 2.8 1.1 .68
2.6 .24 3.2 1.1 .59


2.6 .24 3.0 1.0 .62
2.5 .22 2.9 1.1 .65


206 254 182
188 286 173


200 288 175
194 251 181


2.6 .22 3.0 1.1 .64


Osmocote
14-14-14
g/4" pot


Average


8 197 270 178








Table 4. Tissue content of Pilea 'Silver Tree' after treatment with
varying irrigation frequencies and fertilizer levels while
growing in various ratios of a peat:sand mix.



% dry weight Parts per million

Treatments N P K Ca Mg Cu Fe Mn Zn


Percent
Peat:Sand


2.6 .35 .83 .52 1.6
2.3 .33 .71 .57 1.7
2.3 .33 .65 .58 1.9
2.4 .35 .73 .54 1.8


12 270 68 213
12 199 72 228
13 200 76 188
12 264 62 201


Irrigation/
week


2.1 .32 .70 .58 1.8
2.8 .37 .77 .53 1.7


2.6 .34 .82 .55 1.8
2.3 .34 .64 .56 1.7


2.4 .34 .74 .56 1.8


12 241 70 211
12 226 70 204


12 280 69 209
12 186 70 206


12 234 70 208


85 15
75 25


Osmocote
14-14-14
g/4" pot


Average




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