Crusting of heavy clay soils after rainfall often causes poor emergence of crop seedlings from soil or even failure of a crop.

紧实土壤降雨后常由于板结而严重影响作物出苗，导致建植不良乃至失败。

youdao

Avoid adding peat moss to clay soils since it may retain so much water that the roots drown or rot.

应避免在粘土中加入泥炭，否则会保持太多水份，导致根系溺毙或腐烂。

youdao

To improve clay soils, mix in garden waste or other organic matter and turn the soil deeply in the fall.

VOA: special.2009.03.10