Water and Fertilizer Application Mode of Drip Irrigated Winter Wheat UnderDifferent Soil Fertility Conditions

doi:10.11924/j.issn.1000-6850.casb15090027

Abstract

Abstract: The aim was to explore the best water and fertilizer application mode for winter wheat, and provide scientific basis for efficient-water and fertilizer management of high-quality, high-yield winter wheat under drip irrigation condition. Two pieces of field with different soil fertilities were chosen to conduct comparative experiment on water nitrogen combination treatment for winter wheat at different growing stages. The effect of different soil fertilities, different water nitrogen application modes on the yield and quality of winter wheat was analyzed by determining dry matter accumulation of winter wheat. The results indicated that soil basic fertility had a significantly positive effect on dry matter accumulation of drip irrigated wheat; the increase of base fertilizer could improve photosynthetic products to increase winter wheat yield. The improvement of soil basic fertility had a negative effect on drip irrigated winter wheat in grain test weight, protein content, vitamin B1, amino acid content and water absorption rate. It was recommended that the W2N2 water and fertilizer application mode of drip irrigation was suitable for winter wheat in high fertility field, namely the combination pattern of moisture regulation in filling stage and postponing nitrogen application, while the W1N3 water and fertilizer application mode of drip irrigation was suitable for winter wheat in low fertility field, namely the combination pattern of water and fertilizer regulation in reviving- jointing stage.

Bai Yungang and Jia Zila. Water and Fertilizer Application Mode of Drip Irrigated Winter Wheat UnderDifferent Soil Fertility Conditions[J]. Chinese Agricultural Science Bulletin, 2016, 32(6): 11-18.

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