摘要
通过深翻将上年遗留在土壤表层的杂草种子翻到耕层底部或中部，从而减少了翌年田间杂草的数量。同时，通过深翻将表层土壤残留除草剂翻到底层或中层，再加上旋耕，稀释了残留除草剂的浓度。而经深翻和旋耕后的表层土壤没有或极少有除草剂残留，因而，甜菜能够正常生长发育。
The last year of weed seeds left in the soil surface were plowed the bottom or the middle of topsoil by plowing. Thereby this reduced the number of weeds the next year and diluted concentration of residual herbicides by rotary plowing, This plowed topsoil remained seldom herbicides. So sugarbeet could grow regularly.
出处
《中国甜菜糖业》
2015年第4期42-45,共4页
China Beet & Sugar
关键词
深翻
除草剂残留
杂草
deep plowing
herbicide residues
weed
