Response of wheat varieties to applications of superphosphate fertilizer
1944
Reitz, L.P. | Myers, H.E.
An experiment was conducted to determine if different varieties of winter wheat respond differently to applications of superphosphate. Three varieties, Turkey, Tenmarq, and Quivira, were compared from 1931 to 1938, inclusive; a fourth variety was included during the last 3 years of this period. Applications of phosphate fertilizer gave increased yields of grain and straw, increased test weight slightly, increased percentage of yellowberry grains, reduced protein content of the grain, and hastened maturity. The varieties gave significantly different yields of grain. The variety-fertilizer interaction for grain yield was significant at the 1% level in 1932 and at the 20% level in 1931 and 1935 but was not significant for the entire period. Varieties of similar adaptation tend to give equal response to applications of phosphate fertilizer.
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