论文部分内容阅读
旱地玉米采用覆膜沟穴播方式种植 ,较一般地膜玉米可有效提高耕层土壤含水量和水分利用效率。试验结果表明 ,0～ 6 0 cm土层土壤平均含水量增加 13.3g/ kg,水分利用效率提高 2 .7kg/ (mm· hm2 ) ,产量提高7.75 %～ 10 .6 0 % ,且改制的配套机具成本低、工效高、作业质量好。
Dryland maize is planted by film mulching and hole sowing, and the average mulching corn can effectively increase soil moisture content and water use efficiency of topsoil. The results showed that the average soil water content in 0 ~ 600 cm soil layer increased by 13.3 g / kg, water use efficiency increased by 2.7 kg / (mm · hm2), yield increased by 7.75% -10.60% Low machine cost, high efficiency, good job quality.