随着生产的发展,丰产田的生产活动普遍展开。据有关统计资料表明,丰产田的土壤肥力指标是: 1.具有丰富土壤有机质,土壤有机质含量在一定程度上都可以反映出土壤的肥力水平和土壤生产力的高低。实践表明,要实现农作物丰产优质:水田土壤的有机质含量应在2.00—3.87%;旱田土壤的有机质含量应为1.2%以上。 2.具有足够的速效养分。土壤中速效养分的含量,是实现农作物丰产优质的重要措施。据分析,要实现农作物丰产优质的目标:水田土壤碱解氮应为150毫克/克土,速效 With the development of production, the productive activities of high-yield fields are generally carried out. According to the statistics, the index of soil fertility in high yielding fields is: 1. Rich in soil organic matter, soil organic matter content can reflect soil fertility level and soil productivity to a certain extent. Practice shows that to achieve high yield and quality of crops: paddy soil organic matter content should be 2.00-3.87%; dry soil organic matter content should be 1.2% or more. 2. Has enough quick-acting nutrients. Soil available nutrient content, is an important measure to achieve high yield and quality of crops. According to the analysis, to achieve the goal of high yield and quality of crops: paddy soil alkali nitrogen should be 150 mg / g soil, quick effect