The effect of sodium nitrate applied at different stages of growth on the yield, composition, and quality of wheat
1917
Davidson, J. | Le Clerc, J.A.
The presence of sodium nitrate in the soil at the early stages of growth stimulated the vegetative growth of the crops and consequently gave greater yields. The presence of sodium nitrate in the soil at the time of heading gave a better quality of grain with reference to color and protein content. The vegetative growth was, however, not in the least affected. The presence of sodium nitrate in the soil at the milk stage of the grain had no effect on yield, quality, or protein content of the grain. The same results were obtained from the plots which received their nitrate in solution and those which received it in solid form, except that the yields from the plots which received the fertilizer at the first stage were higher in the former case than in the latter. The reason for this is probably the better distribution of the fertilizer when applied in solution. The use of potassium chloride did not affect the vegetative growth, nor did it appreciably affect the compostion of the grain, but it did seem to increase the amount of yellowberry when used alone.
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