Abstract: Cultivated environment greatly affects the content and output of protein in wheat seeds. The increase of nitrogenous fertilizer makes the effect the most obvious; the overquantity of phosphate fertilizer reduces the protein content but it's amount proportional to nitrogenous fertilizer is helpful to the protein synthesis. The water has the same effect as phosphate fertilizer and the drought-resistant wheat seeds contain higher protein. Consequently both high output and fine quality of wheat may be compatively achived by coordinating the cultivated environment.This paper offers the effect of nitrogen, phosphorus and water on the protein content in wheat seeds, the disparity in reaction of wheat varieties, and the relation between characteristics and protein contents. It provides the experimental basis for high-qualitative culture.

Key words: Water-fertilizer, Wheat, Protein