Maize, as a high-efficient crop of high yield for the grain and feed, the cultivated area in the future should be further expanded.

玉米作为粮食和饲料兼用的高产高效作物，今后的种植面积应进一步扩大。

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For a given rice variety, the crop harvest index, which is calculated by the grain yield divided by total dry matter produced above ground, may vary with crop management practices used.

对于给定的水稻品种，作物收获指数(由籽粒产量除以地上部分总干物重求得)可能随作物管理措施不同而变化。

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Rice is the first cereal crop and contributes around 40% of the national grain production in China. The total yield and sowing area rank the first and second position in the world, respectively.

水稻是我国第一大粮食作物，占我国粮食40 %左右，其总产量与播种面积列世界第一、二位。

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"Given that global and U.S. grain inventories remain very tight, grain prices will continue to reflect growing conditions and yield potential for both U.S. and global crop production, " Agrium said, citing a June report from the U.S. Department of Agriculture, which anticipates global grain and oilseed stockpiles to scrape 35-year lows through 2009.

FORBES: Agrium Cropping Up A Strong Year