ACTA AGRICULTURAE BOREALI-SINICA ›› 2020, Vol. 35 ›› Issue (S1): 241-249. doi: 10.7668/hbnxb.20191634

Special Issue: Wheat Corn Soil fertilizer

• Resources and Environment·Plant Protection • Previous Articles     Next Articles

Effect of Annual Fertilizer Management on Annual Yield of Winter Wheat-Summer Maize Rotation System

LI Jin, LIU Xiaoli, LI Wenguang, LIU Zhenhua, YANG Zhenping, HUANG Chunguo, SUN Min, GAO Zhiqiang   

  1. College of Agriculture, Shanxi Agricultural University, Taigu 030801 China
  • Received:2020-08-07 Published:2020-12-28

Abstract: In order to explore the best distribution method of fertilizer in the winter wheat-summer maize rotation system under the fixed total input.While ensuring food production,promote the rational use of chemical fertilizers and provide a theoretical basis for scientific fertilization for agricultural production.A field experiment was carried out in winter wheat replanted summer maize field in Yuanqu County.The experiment was designed as two-factor split plot.The main-plot was wheat/maize two-season fertilizer distribution ratio,with three levels of 126/294,210/210,294/126 kg/ha and sub-plot was the ratio of wheat season basal fertilizer and jointing top dressing,and the 6 levels were 10:0,7:3,6:4,5:5,4:6,3:7.After the wheat was harvested,summer maize was replanted.Samples were collected during the harvest period for yield and yield composition.The results showed that when the fertilizer amount in wheat season was 126 kg/ha and corn season was 294 kg/ha,both crops could get high yield,and the difference in wheat yield reached a significant level(P<0.05).The annual output increased by 12.98%,4.25%.Different base dressing ratio management had different effects on wheat.The 6:4 management method was beneficial to the formation of ears.Yield increased by 12.86% compared with no top dressing treatment.Under this management method,fertilizer partial productivity was also higher.Correlation analysis showed that increasing the ratio of topdressing in wheat season was beneficial to increase the 1000-kernel weight of corn.Under the conditions of this experiment,the best ratio of base to dress in the wheat season was 6:4.It was suggested applying N 420 kg/ha with 3:7 nitrogen distribution ratio between winter wheat and summer maize would gain the highest yield.

Key words: Winter wheat-summer maize, Fertilizer management, Ratio of base to topdressing, Annual yield

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Cite this article

LI Jin, LIU Xiaoli, LI Wenguang, LIU Zhenhua, YANG Zhenping, HUANG Chunguo, SUN Min, GAO Zhiqiang. Effect of Annual Fertilizer Management on Annual Yield of Winter Wheat-Summer Maize Rotation System[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2020, 35(S1): 241-249. doi: 10.7668/hbnxb.20191634.

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