Journal of Northern Agriculture ›› 2022, Vol. 50 ›› Issue (6): 57-62.doi: 10.12190/j.issn.2096-1197.2022.06.08

• Soil and fertilizer·Prataculture • Previous Articles     Next Articles

Effects of nitrogen fertilizer regulation on grain yield and quality formation of strong gluten wheat

CAI Bin1, WANG Minxin1, DING Chuanyan1, REN Hao2   

  1. 1. Sinochem Modern Agriculture Limited Company,Beijing 100032,China
    2. College of Agriculture,Shandong Agricultural University,Tai′an 271000,China
  • Received:2022-09-07 Online:2022-12-20 Published:2023-03-24
  • Contact: REN Hao

Abstract:

【Objective】To explore the effects of nitrogen fertilizer regulation on strong gluten wheat yield and quality formation and to provide support for the cultivation of high yield and high quality strong gluten wheat.【Methods】The main strong gluten wheat varieties Shiluan 02-1 and Jimai 44 in the Huang-Huai-Hai winter wheat region were used as experimental materials. Three treatments were set:topdressing nitrogen fertilizer at green stage(CK),topdressing nitrogen fertilizer at jointing stage(T1),topdressing nitrogen fertilizer at jointing stage + foliar fertilizer spraying at flowering stage(T2). The effects of nitrogen topdressing at different stages on flag leaf SPAD value,grain yield and components,grain protein components and dough rheological properties of strong gluten wheat were analyzed.【Results】The flag leaf SPAD value and grain yield of the Shiluan 02-1 and Jimai 44 increased significantly with delayed nitrogen application. The flag leaf SPAD value of T1 and T2 treatments in Shiluan 02-1 was 24.51% and 33.01% higher than that in CK(28 d after anthesis),and the grain yield was 12.86% and 7.76% higher than that in CK,respectively. The flag leaf SPAD value of T1 and T2 treatments of Jimai 44 was 27.38% and 32.30% higher than that in CK(28 d after anthesis),and the grain yield was 8.17% and 3.82% higher than that of CK. Delayed nitrogen application and foliar fertilizer spraying at flowering stage significantly increased strong gluten wheat glutenin content and the ratio of glutenin and gliadin content(glutenin/gliadin). The glutenin content of T1 and T2 treatments in Shiluan 02-1 was 5.48% and 16.21% higher than that in CK,and the glutenin/gliadin was 6.45% and 13.98% higher than that in CK,respectively. The glutenin content of T1 and T2 treatments in Jimai 44 was 6.53% and 9.94% higher than that in CK,and the glutenin/gliadin was 4.04% and 13.29% higher than that in CK,respectively. Delayed nitrogen application and foliar fertilizer spraying at flowering stage significantly affected the rheological properties of strong gluten wheat.【Conclusion】Delayed nitrogen application significantly increased flag leaf SPAD value of strong gluten wheat,delayed leaf senescence,and improved grain yield. Both delayed nitrogen application and foliar fertilizer spraying at flowering stage significantly improved grain quality of strong gluten wheat.

Key words: Strong gluten wheat, Nitrogen fertilizer, Yield, Protein component, Rheological property

CLC Number: 

  • S512.1