Group Title: Department of Soils mimeograph report
Title: Higher peanut yields in Suwannee County
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 Material Information
Title: Higher peanut yields in Suwannee County
Alternate Title: Department of Soils mimeograph report 55-5 ; University of Florida
Physical Description: 2 leaves : ; 28 cm.
Language: English
Creator: Robertson, W. K ( William Kendrick )
University of Florida -- Dept. of Soils
University of Florida -- Agricultural Experiment Station
Publisher: Florida Agricultural Experiment Station, University of Florida
Place of Publication: Gainesville, Fla.
Publication Date: February 9, 1955
Subject: Peanuts -- Soils -- Florida -- Suwannee County   ( lcsh )
Peanuts -- Yields -- Florida -- Suwannee County   ( lcsh )
Genre: government publication (state, provincial, terriorial, dependent)   ( marcgt )
non-fiction   ( marcgt )
Statement of Responsibility: by W.K. Robertson.
General Note: Caption title.
General Note: "February 9, 1955."
 Record Information
Bibliographic ID: UF00091548
Volume ID: VID00001
Source Institution: University of Florida
Holding Location: University of Florida
Rights Management: All rights reserved by the source institution and holding location.
Resource Identifier: oclc - 311520837

Full Text
FEB 17 1955

Department of Soils
Mimeograph Report 55-5 February 9, 1955

University of Florida
Suwannee Valley Experiment Station
George E. Ritchey Agronomist in Charge

by W. K. Robertson

Suwannee County is one of the important peanut producing areas
in Florida. Approximately 7,500 acres are planted annually, Of these
1,500 acres are harvested for nuts and the balance are hogged off,
The average yield per acre in 1952 and 1953 was 1,094 and 1,087 pounds
of nuts per acre, respectively. On a county basis this was second and
fifth highest yields in the state, respectively,

Soil management experiments on peanuts are being conducted in
Gadsden, Jackson and Santa Rosa Counties. They have shown that growing
peanuts in rotation, liming the soil adequately, applying the potash
fertilizer to other crops in the rotation rather than direct fertili-
zation, are important factors in increasing peanut yields. However,
the soils in the experimental areas from which this information was
obtained were sandy loams which are much heavier in texture than the
soils in Suwannee County where they are predominately fine sands;
hence when the Suwannee Valley Experiment Station was established in
the spring of 1953 three experiments were planned: the first to
test the effect of the three major elements, nitrogen, phosphorus
and potash, with and without lime; the second to test the effect
of six minor elements, magnesium, zinc, copper, molybdenum, manganese
and boron, with and without lime; and the third to tegt the effect
of continuous versus rotational cropping, on the chemical status of
the soil and peanut yields. The first two of these experiments were
begun in the fall of 1953.

Prefertilization samples were taken from the experimental area
and chemical analyses showed that the soil was typical of the soils
of Suwannee County which had been cropped for many years. The soil
had not been limed and the pH and available calcium were very low,
The potash level was low but the phosphorus had accumulated to a
level where it would not limit the yield of most crops.

The Florispan variety of peanuts was planted. The first yield
data were obtained in the fall of 1954.

On the first experiment where the three major elements were
tested with and without one ton of dolomitic lime per acre, there
was no response to either nitrogen, phosphorus or potash.but the
lime gave a highly significant yield increase. In the second
experiment where the six minor elements were tested with and with-
out 1000 pounds of high calcic lime, there was no response to either

magnesium, zinc, copper, molybdenum or boron but the lime again
gave a highly significant yield increase. Table 1 shows the lime
response for these two experiments' For Experiment 1 the yields are
an average of all major elements aid for Experiment 2 the yields are
an average of all minor elements, v



Lbso per Acre

Experiment Lime applied per acre Limed Unlimed Increase

1 One ton of dolomitic lime 1310 770 5hO

2 1000 lbs. of high calcic lime 2010 740 1270

This table shows that one ton of dolomitic lime per acre gave
an increase in yield of 40 lbs. per acre and 1000 lbs. of high calcic
lime gave an increase in yield of 1270 lbs. per acre. In the first
experiment the yield was almost doubled and in the second experiment
it was almost tripled. The greater increase in the second experiment
was due to the greater availability of the calcium in the high calcic
lime than in the dolomitic lime,

It is clear from these data that liming will pay huge dividends
to the peanut grower in Suwannee County. If the farmer has limed his
soil and is in doubt whether he has sufficient calcium available to
grow peanuts, he should contact his county agent who will advise him
how to have his soil tested through the Agricultural Experiment
Station, Gainesville.

Soils 100 copies WKR

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