麦/玉两熟区农作模式分析及轮耕模式探讨  

Farming and Rotation Tillage System in Wheat/Maize Rotation Area

作　　者：胡立峰[1] 李琳[1] 陈阜[1] 高瑞波 

机构地区：[1]中国农业大学农学与生物技术学院,北京100094 [2]河北省宁晋县农业局,河北宁晋055550

出　　处：《土壤》2007年第2期243-246,共4页Soils

基　　金：国家重大科技专项"粮食主产区保护性耕作制与关键技术研究"资助。

摘　　要：从20世纪90年代初期起,以少/免耕为主体的耕作模式在麦/玉两熟区得到大面积推广应用。经过近15年的耕作栽培,少/免耕充分显示了它省时省工、高效环保的作用,但是与此同时一系列弊端也日益显露。对宁晋县百户农民耕作意愿调查的结果显示,在长期少/免耕后小麦产量和经济效益有所下降,而应在免耕3～5年以后对土壤进行深耕翻。对比麦/玉种植模式与马铃薯/棉花套作的经济效益,以轮作实现轮耕是麦/玉两熟区耕作模式发展方向。Minimal/zero tillage-based cultivation system has been widely extended in areas under the wheat/corn double-cropping system since the early 1990s. Its advantages, being time and labor saving and environment-friendly, are obvious, whereas its disadvantages are also getting prominent with the years passing by. A survey was carded out on willingness of a hundred farmers to adopt the practice in Ningjin County. Results showed long-term minimal/zero tillage might lead to decrease in yield and economic benefit of wheat. It is more advisable to deep plow the fields after 3 ~ 5 years of minimal/zero tillage. Comparison between the wheat/corn rotation system and the potato/cotton one in economic benefit showed that crop rotation is a new approach to extension of the rotation tillage system in areas under the wheat/corn double-cropping system.

关 键 词：少/免耕 麦/玉两熟区 轮作 轮耕 

分 类 号：S157[农业科学—土壤学]