Crusting of heavyclay 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。
3
For example, if one portion of pipe is in heavyclaysoil and another is in well-aerated sandy soil, the portion in the clay will corrode with respect to the portion in the sand.