论文部分内容阅读
1 主题内容与适用范围本标准规定了夏谷公顷产量5250kg(亩产350ka)的基础条件、产量结构、播前准备、播种、田间管理、主要病虫害防治和收获等内容。本规程适用于夏谷产区。 2 引用标准 GB4404粮食作物种子 3 基础条件 3.1 土壤条件 0—20cm耕层土壤有机质含量在0.8～1％,全氮含量在0.07～0.1％,碱解氮含量在50～80mg/kg,速效磷含量在8～15mg/kg,速效钾含量在80mg/kg以上。以壤土或砂质壤土最适合。
1 Subject Matter and Scope This standard specifies the basic conditions, yield structure, preparation for sowing, sowing, field management, prevention and control of major diseases and insect pests and harvesting of 5250kg of Summer Valley hectare (350ka per mu). This regulation applies to summer valley producing area. 2 reference standard GB4404 grain crops 3 basic conditions 3.1 soil conditions 0-20cm topsoil soil organic matter content of 0.8 to 1%, total nitrogen content of 0.07 to 0.1%, alkali hydrolysis of nitrogen content 50 ~ 80mg / kg, available phosphorus content In 8 ~ 15mg / kg, available potassium content above 80mg / kg. To loam or sandy loam most suitable.