Acta Agriculturae Boreali-Sinica ›› 2022, Vol. 37 ›› Issue (S1): 214-220. doi: 10.7668/hbnxb.20193314

Special Issue: Wheat Soil fertilizer

• Resources & Environment · Plant Protection • Previous Articles     Next Articles

Effects of Nitrogen Fertilizer Management on Yield,Quality and Nitrogen Utilization of Weak Gluten Wheat

ZHANG Zihao1,2, LI Xiangcheng1, WU Haotian1, FU Penghao1, GAO Chunbao1, ZHANG Yunbo2, ZOU Juan1   

  1. 1 Institute of Food Crops,Hubei Academy of Agricultural Sciences,Wuhan 430064,China
    2 College of Agriculture,Yangtze University,Jingzhou 434025,China
  • Received:2022-05-26 Published:2022-12-28

Abstract:

In order to reveal the effects of the amount of nitrogen fertilizer and the ratio of basic application of nitrogen fertilizer to top application at jointing stage on the yield,quality and nitrogen efficiency of weak gluten wheat,and to clarify the optimal nitrogen fertilizer management measures for weak gluten wheat,the weak-gluten wheat variety Emai 580 was selected as the test material,and the nitrogen fertilizer amount experiment and nitrogen fertilizer base topdressing experiment were set up.The nitrogen fertilizer amount experiment was set up with 5 treatments of 0,90,135,180,225 kg/ha,and 4 treatments of 10∶0,7∶3,5∶5 and 3∶7 were set in the nitrogen fertilizer base topping ratio experiment.Through the determination and analysis of wheat chlorophyll content(SPAD),leaf area index(LAI),yield,yield components,nitrogen utilization rate and quality under different treatments,it was clear that different nitrogen fertilizer management modes affect the yield,nitrogen fertilizer efficiency and quality of weak gluten wheat.The results showed that reasonable nitrogen fertilizer management could effectively improve the photosynthetic capacity of wheat,delay the decline of chlorophyll,increase yield and nitrogen use efficiency,and improve wheat quality.With the increase of nitrogen application rate,the wheat yield increased first and then decreased.The highest yield was 5 903.0 kg/ha when the nitrogen application rate was 180 kg/ha and the base-dressing ratio was 7∶3.Under the same fertilization rate,nitrogen absorption and utilization rate,partial factor productivity of nitrogenand nitrogen agronomic efficiency of wheat increased first and then decreased with the increase of top dressing ratio.When the base-to-chasing ratio was 7∶3,the three indicators all reach their maximum values:37.6%,32.8 kg/kg,and 12.0 kg/kg.Different nitrogen fertilizer management modes had obvious effects on wheat quality indexes.The grain crude protein content,wet gluten content and stabilization time all showed an increasing trend with the increase of nitrogen fertilizer dosage and the backward shift of nitrogen fertilizer.Based on various indicators,the nitrogen application rate of 180 kg/ha and the base-to-dressing ratio of 7∶3 were the optimal nitrogen fertilizer management mode for the synergy of yield,quality and nitrogen use efficiency of weak gluten wheat.

Key words: Weak gluten wheat, Nitrogen fertilizer management, Yield, Nitrogen use efficiency, Quality

Cite this article

ZHANG Zihao, LI Xiangcheng, WU Haotian, FU Penghao, GAO Chunbao, ZHANG Yunbo, ZOU Juan. Effects of Nitrogen Fertilizer Management on Yield,Quality and Nitrogen Utilization of Weak Gluten Wheat[J]. Acta Agriculturae Boreali-Sinica, 2022, 37(S1): 214-220. doi: 10.7668/hbnxb.20193314.

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