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ying xiang nong ji zuo ye zhi liang de yin su fen xi ( san )
Author(s): 
Pages: 10-11
Year: Issue:  9
Journal: Farm Machinery

Keyword:  作业质量平整土地耕作土种子发芽因素分析斜耙配重箱小麦播种双列播种质量;
Abstract: <正> 二、耙地作业耙地作业的主要目的是碎土、平整土地、疏松土壤表面,扎实耕作土层、保持土壤中的水分、消灭杂草及覆盖肥料,为农作物种子发芽和生长创造良好的条件。耙地一般分为耕前耙和耕后耙。在土壤较为干硬和夏季灭茬时,为使土壤细碎或除草,一般采用耕前耙。在已耕地块上,垡块较大,地表不平,播前需整
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