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The government encourages farmers to grow corn instead of rice to improve water quality.

政府鼓励农民种植玉米而非水稻，以改善水质。

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If my neighbors grow inferior corn, cross-pollination will steadily degrade the quality of my corn.

如果我邻居种植的是次等玉米，交叉授粉将会逐渐降低我的玉米的品质。

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Corn harvests remain small. The researchers say farming methods in Sub-Saharan Africa need to improve or else poor quality soil will increase rural poverty.

VOA: special.2009.07.28

He and former American President Jimmy Carter worked with the Sasakawa Africa Association to help increase the quality and production of corn on the continent.

VOA: special.2009.11.10

U.S. farmers paid more for high quality Genuity reduced refuge corn and Roundup ready 2 yield soybean seeds as global food prices hit historic highs.

FORBES: Amid Record-High Food Prices, Monsanto Grows Q3 Profits 77%