Journal of Food, Agriculture and Environment

Effects of irrigation and nitrogen application on the grain yield and quality of medium gluten wheat, Jimai 22

Author(s):

Zhi-Kao Sun ¹, Bei-Jing Tian ¹, Yue Fu Wang ¹, Chang-Xing Zhao ¹*, Qi Lin ¹, Jin-Zhe Du ¹, Rui-Ying Wang ²

Recieved Date: 2013-10-18, Accepted Date: 2014-01-12

Abstract:

To provide a theoretical basis for the reasonable water and fertilizer management of winter wheat planting on the North China Plain under field conditions with medium gluten wheat Jimai 22 as the experimental materials, the effects of various irrigation and nitrogen applications on the main indicators of the yield and quality of medium gluten wheat Jimai 22 are investigated, and the interaction effects of water and nitrogen on the yield and quality are analysed. The results showed that when applied to medium gluten wheat Jimai 22, the nitrogen rate of 210 kg hm^-2 combined with irrigation at the jointing stage and irrigation at the grain filling stage 10 days after anthesis may significantly increase the effective ear number per unit area, grain number, grain weight and grain number per spike, as well as improve the yield to a certain extent. The total protein content of the wheat grain and glutenin content showed upward trends with an increasing nitrogen rate, but the wheat gliadin content showed a decreasing trend. However, at the nitrogen rate of 270 kg hm^-2, the total protein content and glutenin content both increased by a small rate. To a certain extent, increased irrigation times may increase the levels of globulin and albumin, and the interaction between 2-time irrigation and the nitrogen rate of 210 kg hm^-2 may maintain the grain protein component content at a more balanced level. Irrigation and nitrogen application have significant interaction effects on the grain gluten and starch contents, signifying that the interaction between 2-time irrigation and the nitrogen rate of 210 kg hm^{– 2} may significantly increase the grain gluten and starch contents. Under the experimental conditions, the nitrogen rate of 210 kg hm^-2, combined with irrigation at jointing and grain filling 10 days after anthesis, showed significant interaction effects between water and fertilizer saving in the field, which may effectively regulate wheat yield elements, as well as indicators of quality components to some extent, and ultimately aid in producing high-quality and high-yield wheat.

Keywords:

Irrigation and nitrogen application, medium gluten wheat, yield, quality, interaction effects

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Journal: Journal of Food, Agriculture and Environment
Year: 2014
Volume: 12
Issue: 1
Category: Agriculture
Pages: 228-233

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