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太湖地区由麦稻二熟制大面积改为麦稻稻、肥稻稻双三制以来,由于土壤全年渍水时间的增加和不合理耕作等方面原因,一些地区出现了土壤结构性变差的现象。田间大土块增加,土团变硬(抗压碎强度增加)、变僵(粗孔隙减少、细孔隙增加)。这种耕层土壤
Since Taihu Lake area was changed from the second generation of wheat to the second generation of paddy rice and paddy rice, the soil structural deterioration appeared in some areas due to the increase of soil waterlogging time and irrational farming. The phenomenon. Large soil mass increases in the field, soil hardens (increases crush strength), stiffens (coarse pores decrease, fine pores increase). This top soil