The surveys showed that the weed distribution in rice fields in Shanghai was obviously various due to the differences of soil type, acid-base scale and terrain between areas.

调查结果表明，由于地区间土壤种类、酸碱度、地势差异，上海稻田杂草的分布和危害有明显区域性。

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Every morning, the parents walked the dirt roads seeking work in the rice fields.

每天早上，这对夫妻都要走上尘土飞扬的路，去稻田里找工作。

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About 30,000 hectares of rice fields in Kerala are infested by this weed.

喀拉拉邦大约3万公顷的稻田大量滋生这种杂草。

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He worked in the fields to show farmers new ways to grow wheat, rice and other crops.

VOA: special.2009.09.22

Borlaug worked in fields to show farmers new ways to grow crops like wheat and rice.

VOA: special.2009.11.10

Under the Khmer Rouge government in the late 1970s, Kampot's famous pepper plantations were uprooted and replaced with rice fields.

VOA: standard.2009.04.16

At the moment, large amounts of pesticide are sprayed to accomplish this task in rice fields.

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What if the million or so Muslims (estimates vary) who had gathered in rice fields at Raiwind, near Lahore, were roused from devotion to march on the capital of Pakistan's biggest province?

ECONOMIST: A little-noticed Muslim gathering

The product metabolizes into inactive compounds within hours of being ingested, she said, a feature crucial to its development for use in rice fields in Asia, where farmers needed something that wouldn't sicken other animals and children.

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