不同时期氮肥施用量对一穴双株栽培模式下玉米产量的影响

doi:10.12190/j.issn.2096-1197.2020.01.05

Abstract

Abstract: 【Objective】Improve nitrogen use efficiency of maize to achieve the optimum yield. 【Methods】Using a random block group design,the effects of different nitrogen fertilizer application treatments on the growth and yield of maize in the high-yield one-hole double-plant cultivation model in the Hetao Irrigation District were studied.【Results】The yield of nitrogen fertilizer was increased by 6.8%-27.3% after the application of nitrogen fertilizer and the proper removal of the nitrogen fertilizer was beneficial to the higher leaf area index and SPAD value in the later stage of the growth of maize,and the yield of maize was increased. 【Conclusion】The yield of treatment 2 was the highest in the “30% seed fertilizer,35% small bell-mouth stage,25% big bell-mouth stage,10% grouting stage” nitrogen fertilizer application mode,and the performance is good. The application model provides a basis for rational fertilization of maize.

Key words: Hetao Irrigation District, Maize, One hole double plants, Nitrogen fertilizer

CLC Number:

S513

ZHAO Na, HAO Yunfeng, DANG Jiuzhan, FENG Junwei, LI Xiaohong, MA Jun, SONG Jianjun. Effects of the different stage of nitrogen fertilizer application on maize yield in cultural pattern of one hole double plants[J].Journal of Northern Agriculture, 2020, 48(1): 25-29.

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Effects of the different stage of nitrogen fertilizer application on maize yield in cultural pattern of one hole double plants

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