Characteristics of Nutrient Accumulation and Efficiency in Maize under Different Agronomic Managements

文献类型： 外文期刊

第一作者： Cai, H. G.

作者： Cai, H. G.;Zhang, X. Z.;Zhu, P.;Yan, X. G.;Liu, J. Z.;Yuan, J. C.;Ren, J.;Wang, L. C.;Ma, W.;Ping, J. Q.

作者机构：

关键词： Cultivation pattern;N level;Nutrition;Spring maize

期刊名称：JOURNAL OF AGRICULTURAL SCIENCE AND TECHNOLOGY （ 影响因子：1.098； 五年影响因子：1.348 ）

ISSN： 1680-7073

年卷期： 2015 年 17 卷

页码：

收录情况： SCI

摘要： A four-year field experiment was conducted to understand the characters of nutrient accumulation and distribution in maize under different yield levels, so as to provide scientific guidance for effective utilization of mineral fertilizers, and eventually for high yield of spring maize. The grain yield, nutrient (nitrogen, phosphorous, potassium) accumulation and uptake efficiency were evaluated under different agronomic managements and nitrogen application treatments. The data showed that the two-year average grain yield under high Yield Management (HY) was significantly increased by 35.3% as compared with Traditional Farming management (FP). Interestingly, the increased range of grain yield may be associated with harvest ear numbers, indicating that high planting density could lead to high maize production. Moreover, the total amounts of nitrogen, phosphorous and potassium in maize significantly increased and the ratio of accumulation after flowering was also improved under HY management. Our results suggested that the high grain yield and nutrient use efficiency would ultimately be achieved through integrating and optimizing high yield cultivation techniques, which not only improve biomass and harvest index, but also promote the growth and nutrient accumulation of maize.

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