保护性耕作高产高效体系

High Yield and Benefit System for Conservation Tillage

2009～2012年3个生产周期的试验结果表明,保护性耕作高产、高效体系在基本不增加投入的条件下,小麦比传统耕作平均增产29%,超过了增产20%的预期目标,保护性耕作在正常气候范围内,实现高产、高效是可能、可行的,为提高保护性耕作产量和效益,提供了一条有效的途径。小麦高产、高效的原因,主要是在保护性耕作基本技术体系基础上,加入优化种植模式(窄行12 cm、宽行28 cm,小宽窄行)、适当加大播种量(10%～20%)和采用沟灌等新技术内容,形成了保护性耕作高产、高效体系,把保护性耕作的水土优势,转化成了产量和效益优势。

The experiment results in 2009 -2012 showed that the average yield in conservation tillage high yield and benefit system （CTHYBS） was 29% higher than that in traditional tillage without input increasing, which was more than the expected goal of 20%. It was preliminarily proved that conservation tillage （CT） could realize high yield and benefit under normal weather condition. In order to improve the yield and benefit of wheat, optimum planting mode （12 cm ＋ 28 cm narrow/wide row）, sowing rate increasing（ 10% ~ 20% ） and furrow irrigation were adopted based on elementary technique system of CT, therefore, an high yield and benefit technique system was formed. The soil and moisture advantages in CT could be transferred to advantages of yield and benefit with CTHYBS.