【摘要】 旱地麦田少耕全程覆盖栽培体系比常规耕作土壤含水量提高１．９７个百分点以上，有机质增加０．２个百分点，速效磷增加１．７ｍｇ／１００ｇ土，速效钾增加２．５ｍｇ／１００ｓ土，速效氮增加１．１５ｍｇ／１００ｇ土，光合速率提高９．２ｍｇＣＯ２／ｄｍ２·ｈ。更多还原

【Abstract】 Compared to conventional tillage, under the reduced tillage sysytem, soil water content increased 1. 97 percent point, organic matter content 0. 2 percent point, available phoshate 1. 7mg/100g soil, available potassium 2. 5mg/100g soil, available nitrogen 1. 15mg/100g soil,and photosynthetic efficiency 9. 2mg CO2/dm2·h.更多还原