护根物可以抑制杂草生长,保持土壤水分。
化学除草剂或者自然处理方法,比如玉米麸质可以抑制杂草生长。
Chemical weed killers or natural treatments like corn gluten can suppress weed growth.
他说,经过密植的具有竞争力的作物会很快遮蔽土地,这将有助于抑制杂草生长。
He says a dense, competitive crop that quickly shades the soil will help suppress many weeds.
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