few differences in soil water content were observed among the three precipitation type years, but the effects of mulch tillage on soil water in dry years was evident.
不同降水年型,覆盖耕作对土壤水分影响的变化总体趋势基本一致,但干旱年型覆盖耕作的效果更明显。
compared with conventional tillage method, the mulch tillage practice increased soil water content.