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EFFECT OF SILICON ON CROP YIELD, AND NITROGEN USE EFFICIENCY APPLIED UNDER STRAW RETURN TREATMENTS

文献类型： 外文期刊

作者： Mabagala, F. S. 1 ; Geng, Y. H. 1 ; Cao, G. J. 1 ; Wang, L. C. 2 ; Wang, M. 2 ; Zhang, M. L. 1 ;

作者机构： 1.Jilin Agr Univ, Coll Resources & Environm, Changchun 130118, Peoples R China

2.Jilin Acad Agr Sci, Inst Agr Environm & Resources Res, Changchun 130033, Peoples R China

关键词： crop residues; Si-based fertilizer; spring maize; N utilization; grain yield

期刊名称：APPLIED ECOLOGY AND ENVIRONMENTAL RESEARCH （ 影响因子：0.711； 五年影响因子：0.796 ）

ISSN： 1589-1623

年卷期： 2020 年 18 卷 4 期

页码：

收录情况： SCI

摘要： Nitrogen (N) is an essential element for crop growth and for improving crop yield. A two-year field experiment was carried out in China to test the effects of silicate (Si) fertilizer with straw return on N use efficiency (NUE) and yield of spring maize. Four treatments were arranged in a randomized block design: SI+ST (straw return + 45 kg ha(-1) Si), SI (no straw return + 45 kg ha(-1) Si), ST (straw return + no Si) and C (no straw return + no Si). The results showed that the accumulation of dry matter and grain yield under SI were 6.5% and 8.8% higher, respectively than those under the C. The N uptake under SI increased by 15.6% compared with that under the C treatment. The N uptake of SI+ST increased by 7.6% compared to SI. The SI+ST resulted in a significant increase in the AEN, REN, and PFPN compared with SI. The above results show that the use of Si fertilizer combined with straw return significantly provides better N for maize growing stages and is recommended as an alternative method to simultaneously increase crop yield and NUE while reducing the use of chemical fertilizer to the environment.

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