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为研究保护性耕作的产量效应,采用保护性耕作和常规耕作(CK)2种耕作方式开展对比试验,结果表明:保护性耕作最高分蘖和有效分蘖分别比常规耕作高15.70%和18.40%;各时期的干物质积累和叶面积指数也高于常规耕作;保护性耕作产量893.5 kg/667 m2,比常规耕作高11.60%,产量构成因素除平方米穗数极显著高于常规耕作外,其他均低于常规耕作,说明保护性耕作高产的原因在于极显著地提高了单位面积穗数。
In order to study the yield effect of conservation tillage, a comparative experiment was conducted using two methods of conservation tillage and conventional tillage (CK). The results showed that the highest tiller and effective tiller of conservation tillage were 15.70% and 18.40% higher than conventional tillage respectively. The dry matter accumulation and leaf area index in the period were also higher than that of conventional tillage. The yield of conservation tillage was 893.5 kg / 667 m2, 11.60% higher than that of conventional tillage. The yield components were significantly higher than that of conventional tillage Lower than conventional farming, indicating that the reason for the high yield of conservation tillage is the extremely significant increase in the number of ears per unit area.