Effect of commercial fertilizers and green manure on yield and nutritive value of wheat. II. Nutritive value with respect to general composition, thiamine, nicotinic acid and the biological value of

Application of superphosphate in a dosage of 25 lbs. of phosphoric acid
(P2O5), per acre, either alone or with green manure (Cajanus indicus) produced
grain of low average protein content, viz., 9.3%, but higher ash content.
Supplementation of the superphosphatic treatments with ammonium
sulphate at the rate of 60 lbs. nitrogen per acre increased considerably the
protein content of the grain which averaged 10.5%. Animal experiments
showed that there was no noticeable effect of the variations in the protein
content of samples as a result of fertilization on the biological value of the
protein determined by the "balance sheet method". However, the amount of
available or "net protein" was comparatively more in the grain characterized
by higher protein content as a result of fertilization. The results of thiamine
and nicptinic acid assays did not reveal any striking differential effect of
fertilization on these constituents.