Tillage and rotation effects on crop yield and profitability on a clay loam soil in Northeast China
As an utmost form of conservation tillage, no -tillage (NT) leads to the least disturbance of soil and the most residue cover, which is greatly beneficial to soil properties as well as air and water quality. It has been concluded that NT can bring greater economic return by the reasons that it significantly reduces labor cost and energy requirements with similar or even higher crop yield. However, there are notable difficulties with NT that obstructed its further adoption by farmers. NT may not be suitable for fine -textured and poorly drained soils in Northeast China which has been undergoing serious soil exhaustion and soil erosion owing to years of traditional management of soil resources. Some researchers claimed that decreased crop yield under NT could be eliminated using crop rotation. The objective of this study was to evaluate the effects of different tillage and rotation systems on corn and soybean yield and the corresponding economic return on a clay loam soil in Northeast China.
no - tillage / crop rotation / yield / profitability / corn / soybean
Ruqin Fan Xiaoping Zhang Aizhen Liang Yan Shen Xiuhuan Shi
Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Weishan Street 3195, Northeast Institute of Geography and Agroecology, Chinese Academy of Sciences, Weishan Street 3195,
国际会议
哈尔滨
英文
214-215
2010-07-13（万方平台首次上网日期，不代表论文的发表时间）