Florida Agricultural Experiment Stations


TABLE 4.-YIELD OF TOBACCO IN POUNDS FROM 12 PLOTS* FOR RATES OF
 IRRIGATION AND TIME OF APPLICATION OF FERTILIZER IN 1949.
 I 1. Mean
 Fertilizer Irrigation Irrigation Irrigation Total Yield
 Rate None /2 Inch % Inch Yields per Plott


800 .................
1600 ................
400 + 400**....
800 + 800**....

Totals .........

Meant ............


26.27
30.47
24.91
27.74

109.39

 2.28


36.89
48.52
42.90
53.10

181.41

 3.78


36.43
37.00
39.47
52.15


165.05

 3.44


99.59 2.77
115.99 3.22
107.28 2.98
132.09 3.69


 To convert to yield per acre multiply each entry by 25.50.
 ** One-half of fertilizer applied one week prior to transplanting, the other half applied
 approximately four weeks after transplanting.
 f LSD at .05 percent probability for irrigation means = .64.
 $ LSD at .05 percent probability for fertilizer means = .29.

TABLE 5.-YIELD OF HIGH QUALITY TOBACCO IN POUNDS FROM 12 PLOTS* FOR
 RATES OF IRRIGATION, RATES AND TIME OF APPLICATION OF
 FERTILIZER IN 1949.


 Fertilizer Irrigation Irrigation i
 Rates None % inch 1

800 .............. 5.75 15.46
1600 -............. 6.62 27.82
400+ 400**.... 4.51 30.91
800 + 800**.... 3.79 43.57


Totals

Meant


Irrigation
 % Inch

 19.46
 19.68
 25.70
 41.21


20.67 117.76 106.05

 .43 2.45 2.21


 IMean
 Total Yield
 Yields per Plott

 40.67 1.12
 54.12 1.50
 61.12 1.70
 88.57 2.46

244.48 i


 To convert to yield per acre multiply each entry by 25.50.
 ** One-half of fertilizer was applied one week prior to transplanting, the other half applied
 approximately four weeks after transplanting.
 t LSD at .05 percent probability for irrigation means = .46.
 1 LSD at .05 percent probability for fertilizer means = .33.

TABLE 6.-YIELD OF TOBACCO IN POUNDS PER 24 PLOTS*AS AFFECTED BY
 TIME OF FERTILIZER APPLICATION AND IRRIGATION AND RATE OF
 FERTILIZER AND IRRIGATION IN 1949.


 Irriga- Irrigi
 Treatment** tion tion
 None %/ Inc

Time of Singlet 56.74 85.4:
Application
 Split 52.65 96.0(


Rate of 800 51.18 79.79
Application
 1,600 58.21 101.62


a- Irriga- I I Mean
 tion Total Yield
%h % Inch Yield per Plot


73.43 215.58 2.99

91.62 240.27 3.37

75.90 206.87 2.87

89.15 248.98 3.46


* To convert to yield per acre multiply each entry by 12.75.
** Differences between times and between rates of applications are highly significant.
t All fertilizer applied before transplanting.
$ One-half of fertilizer applied before transplanting and one-half four weeks later.


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