2009•Jiangsu nongye xuebaoRequires access
Effect of nitrogen on grain yield and protein content of weak gluten wheat cultivar Ningmai 13.
Yao Jinbao, Hongxiang Ma, Yao Guocai, Yang Xueming, Lijuan Ren, Peng Zhang, Pingping Zhang
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Abstract
A weak gluten wheat cultivar,Ningmai 13,was taken as an experimental material to study the effects of nitrogen application rates(0 kg/hm2,180 kg/hm2 and 240 kg/hm2)and dressing ratios (5∶1∶4∶0,5∶1∶2∶2,7∶1∶2∶0 and 9∶1∶0∶0) on its grain yield and protein content.The grain yield,number of spikes and kernels per spike were increased with increasing nitrogen rate,however,protein content was increased simultaneously,under the range of nitrogen application of 0-240 kg/hm2.The grain yield was raised with rising nitrogen ratio at elongation and booting stage,but protein content was increased under the same nitrogen dressing ratio.Based on these results,the recommendation to achieve high yield and better quality for Ningmai 13 was dressing ratio of basic to tillering to elongation nitrogen fertilizer of 5∶1∶4∶0 under the nitrogen application rate of 180 kg/hm2.