It is advisable to mix coarse grit into heavy soil to improve drainage.

建议将粗砂掺到黏重的土壤里，以提高排水性能。

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Lhodak's agriculture natural factors , heavy soil erosion, low cultivation quality and environment fragility.

耕地质量差,水土流失严重, 农业生态系统脆弱等.

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Moisture is vital and a heavy soil provides a good basis for plant growth.

水分至关重要,泥泞的土壤为植物生长提供了良好基础.

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