VOA慢速英语2012.07.23 其他, Natural, material, controls, 英语

Rebecca949

Other controls include turning over the soil, pulling the weeds or covering them with mulch made of shredded wood, garden waste or other material.其他手段还包括翻地，拔除杂草或用由木屑、花园垃圾或其他材料制成的地膜覆盖它们。
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cellina

I love tingroom .

杨飞飞儿

But even mulch has its limits.Natural resource specialists point out that weeds can be transported in mulch .This is also true of soil ,.., hay and animals.