摘要
轮作是耕作学的主要内容之一，合理的轮作能够实现农田的持续增产．本文在剖析轮作实质的基础上，对轮作效果的定量评价进行了研究，提出了轮作当量的概念及其计算公式，并对轮作当量的意义进行了讨论．
Crop rotation is an important part in farming System, Proper rotation of crops can sustainably increaseyield. This paper, based on analyzing essence of crop rotation, quantitative evaluation in crop rotation was made,and the concept and formula of crop rotation equivalent were proposed. The theoretical importance is discussed inthis paper.
出处
《沈阳农业大学学报》
CAS
CSCD
1999年第1期13-15,共3页
Journal of Shenyang Agricultural University
基金
国家"九五"重点科技攻关旱农项目张北试区(!960040403
关键词
轮作效果
定量评价
轮作当量
大田作物
Crop rotation
quantitative evaluation
rotation equivalent
