The effect of sodium nitrate applied at different stages of growth on yield, composition, and quality of wheat
1918
Davidson, J. | Le Clerc, J.A.
No conclusion can be drawn from our experiments with reference to the effect of sodium nitrate on the ash, phosphoric acid, and potash content of the grain. The protein content in the straw showed the same tendencies as the protein content in the grain, i. e., there was an increased protein content as a result of the nitrate applied at the second stage. An increase in the yield of straw as well as of grain was noted whenever nitrates were applied at the first stage. Potassium chloride depressed the protein content in the straw. Headden's work can be interpreted to agree with the results of our experiments. The results of Headden's experiments as well as our own are not opposed to the conclusion of Le Clerc and his associates that flintiness and high protein content are a function of climate.
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