Effect of nitrogen fertilization on productivity and quality of winter wheat varieties grown alone and as broad-strip intercrop with sunflower

Nedyalka Yordanova, Ivan Yanchev

Abstract: The influence of nitrogen fertilization on productivity and quality of winter wheat varieties: Sadovo 1 (standard), Plovdiv, Gaia 1 and Sadovo 772, grown alone and as broad-strip intercrop with sunflower. Four wheat varieties were grown on Alluvial-meadow soil of experimental field in the region of Plovdiv. Tested the following variants of nitrogen fertilization: N0, N8, N16 and N24 background P15K10. It was found with increasing nitrogen fertilization rate to 16 kg N/da, productivity and quality of grain is increased at all tested varieties. Importation of 24 kg N/da is economically justified as it leads at a significant increase in the quality. The attached tape growing varieties tested positive influence maturation and productivity of winter wheat varieties, but no significant effect on grain quality.

Keywords: nitrogen nutrition; productivity; quality of grain; winter wheat

Date published: 2017-07-06