割草机土壤压实与苜蓿产量相关性研究

doi:10.11686/cyxb20140207

草业学报 ›› 2014, Vol. 23 ›› Issue (2): 59-65.DOI: 10.11686/cyxb20140207

割草机土壤压实与苜蓿产量相关性研究

高爱民^1,2,吴劲锋¹,戴飞¹,张锋伟¹,韩正晟^2*

1.甘肃农业大学工学院,甘肃兰州 730070;
2.甘肃农业大学农学院,甘肃兰州 730070

收稿日期:2013-03-20 出版日期:2014-02-25 发布日期:2014-04-20
通讯作者: E-mail:hanzhengsheng@gsau.edu.cn
作者简介:高爱民(1955-),男,甘肃庆阳人,讲师,博士。E-mail:gaoaimin@gsau.edu.cn
基金资助:
国家自然科学基金(51365003)资助。

Correlation study of soil compaction by mowing machine and alfalfa yield

GAO Ai-min^1,2, WU Jing-feng¹, DAI Fei¹, ZHANG Feng-wei¹, HAN Zheng-sheng²

1.Engineering college, Gansu Agricultural University, Lanzhou 730070, China;
2.College of Agronomy, Gansu Agricultural University, Lanzhou 730070, China

Received:2013-03-20 Online:2014-02-25 Published:2014-04-20

摘要/Abstract

摘要： 通过田间试验研究了HW320型割草机压地1~10遍过程中的苜蓿地土壤压实问题,分析了土壤体积密度、土壤坚实度与苜蓿产量的相关性。研究表明,苜蓿地机械碾压引起了不同深度土壤体积密度与土壤坚实度的增加,土壤体积密度与压实次数的对数lg N成正比,压实引起了苜蓿减产。随压实次数变化,土壤体积密度与苜蓿产量成负相关关系,可用二次方程表示。土壤坚实度与苜蓿产量成负相关关系,0～20 cm土层土壤坚实度与苜蓿产量的相关度高,可用二次方程表示。

Abstract: Soil compaction problems resulted from 1-10 passes of a HW320 mowing machine along the same track in field tests. The correlations between soil bulk density,soil hardness and alfalfa (Medicago sativa) yield were analyzed. Soil bulk density and soil hardness in different depths were increased because of alfalfa soil compaction and the soil bulk density was directly proportional to lg N of the number of compaction times. Alfalfa yield was reduced because of soil compaction. There were negative correlations between soil bulk density and alfalfa yield, which can be represented by quadratic equations. Soil hardness was also negatively correlated with alfalfa yield, the correlation of soil hardness at 0 to 20 cm soil depth with alfalfa yield is high and can be represented by quadratic equations.

中图分类号:

高爱民,吴劲锋,戴飞,张锋伟,韩正晟. 割草机土壤压实与苜蓿产量相关性研究[J]. 草业学报, 2014, 23(2): 59-65.

GAO Ai-min, WU Jing-feng, DAI Fei, ZHANG Feng-wei, HAN Zheng-sheng. Correlation study of soil compaction by mowing machine and alfalfa yield[J]. Acta Prataculturae Sinica, 2014, 23(2): 59-65.

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割草机土壤压实与苜蓿产量相关性研究

Correlation study of soil compaction by mowing machine and alfalfa yield

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