The quantity and composition of proteins ensure the nutritional quality of wheat grains. Cultivar, climatic conditions and fertilization are determining factors in grain protein accumulation. This paper examines the impact of nitrogen, phosphorus and potassium fertilizers on the protein content of wheat kernels. The wheat variety grown was Ciprian. The experimental field in the Experimental Didactic Station, in the soil and climatic conditions of the year 2019-2020.Through this research the influence of nitrogen, phosphorus and potassium fertilization on the protein component was investigated.The experimental variants had the following gradations of the experimental factors: chemical nitrogen fertilizers N0,N30,N60,N90,N120. An agrofoundation of phosphorus and potassium fertilizers was provided as follows: P0K0, P40K0, P80K0, P40K40 and P80K80. Of the three mucilages nitrogen plays an essential role in protein accumulation in the grain. The protein percentage was between 11.28-15.55% , under the influence of fertilization, and the highest values were recorded at the nitrogen dose levels 12.93(N30) and 15.44% (N120). The application of one-sided phosphorus and potassium fertilizers does not contribute to the increase of protein content in the grain, on all four P and K agroforests the increases are statistically insignificant. Nitrogen fertilizers resulted in statistically significant increases in protein content as follows: N30-1.65%, N60-2.98%, N90-3.80% and N120-4.16%.

autumn wheat, climatic conditions, fertilization, production quality

agronomy

Presentation: poster