It was stated that breeding for zinc dense crop varieties with agronomic advantages was just as important for plant nutrition as for human nutrition.

评述了富锌植物的农业优势及改善人类锌营养的潜力。

youdao

Chemical weed killers or natural treatments like corn gluten can suppress weed growth. Dense planting of a crop can also act as a natural control.

化学除草剂或类似玉米麸等自然手段可以抑制杂草的生长。作物密集种植也能作为一种自然控制手段。

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He says a dense, competitive crop that quickly shades the soil will help suppress many weeds.

密集种植也是控制杂草的一种自然方法。

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He says a dense, competitive crop that quickly shades the soil from the sun will help reduce weed growth.

VOA: special.2011.07.26

He says a dense, competitive crop that quickly shades the soil will help suppress many weeds.

VOA: special.2009.05.26

He says a dense,competitive crop that quickly shades the soil will help suppress many weeds.

VOA: special.2010.08.10

Moreover, all these methods require farmers to detect the presence of fruit flies, and to identify them as the main threat to their crop no mean feat when most of the action is taking place in dense, leafy canopies ten metres off the ground.

ECONOMIST: Biological pest control