植物营养与肥料学报2016，Vol.22Issue(1)：76-84,9.DOI:10.11674/zwyf.14432
旱地基于豆类绿肥不同轮作方式的经济效益分析
Profit analysis of different rotations based on leguminous green manure in dryland area
摘要
Abstract
Objectives] In dryland area of Loess Plateau, soil is barren, and the heat and precipitation resources can hardly be fully utilized during summer fallow period. Therefore, a better cropping system is needed to secure the farmer’s income depending on the results of a profit analysis of different rotations. [Methods] A 4-year field trial was conducted to assess economic benefits of two rotations and corresponding green manure treatments. Leguminous green manure-winter wheat (LG -WW) and leguminous green manure-spring maize-winter wheat (LG-SM-WW) were compared with summer fallow -winter wheat (SF -WW) as control, a widely applied rotation in local area. [Results] LG - WW has the lowest economic benefits, and the coefficient of variation ( CV) of net benefits for LG -WW is 67. 69 % , which indicates the rotation thus couldn’t replace the traditional SF -WW. The differences of wheat yields and gross revenue among the green manure treatments for this rotation vary from year to year. LG -SM -WW has the highest gross revenue and the lowest CV (15. 42 % ) of net benefits among the three rotation systems, which implies that farmers could achieve a high and stable income by applying this rotation. Crops yields and economic benefits under the straw mulch and incorporation treatments for this rotation are higher than those of move-away treatment in LG-SM -WW rotation. [Conclusions]Legume -summer maize -whinter wheat rotation is the most profitable cropping system in the dryland of Loess Plateau. After harvesting the pods of legumes, the straw is recommended to mulching or incorporated for higher yield of maize and wheat.关键词
旱地/豆类绿肥/轮作/经济效益Key words
dryland/leguminous green manure/rotation/economic benefit分类
农业科技引用本文复制引用
姚致远,王峥,李婧,鱼昌为,曹群虎,曹卫东,高亚军..旱地基于豆类绿肥不同轮作方式的经济效益分析[J].植物营养与肥料学报,2016,22(1):76-84,9.基金项目
公益性行业(农业)科研专项(201103005,201503124) （农业）
国家小麦现代产业技术体系建设专项经费项目 （）
教育部“新世纪优秀人才支持计划”项目(NCET -08-0465) （NCET -08-0465）
农业科研杰出人才及其创新团队培养计划资助。 （）
