Organic material like compost or leaf mulch can help onions grow in heavy soil.

堆肥或护根物一类的有机肥料可以帮助洋葱在难耕的土壤生长。

youdao

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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The heavy soil root disease was caused by the unbalanced soil microflora after continuous vegetable cropping in green house.

蔬菜设施生产过程中的连作方式致使作物根区土壤微生物区系失衡，引起土传病害的流行。

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Intensively used grasslands are also harmed as the soil is continually crushed under the weight of heavy animals.

VOA: special.2010.01.19

After heavy rainfall the soil became saturated, leading to more of the cliff falling away.

BBC: Landslip at St Mary's Church, Whitby

Critics of this kind of farming point to its limited social benefits, and to its ecological costs, which include soil erosion and the heavy use of chemicals.

ECONOMIST: Brazil

Heavy-metal contamination in China's soil also includes high amounts of lead and arsenic.

WSJ: Cadmium-Tainted Rice Found in Guangzhou