玉米是重要的粮食作物和饲用作物。

Corn is an important food crop and forage crop.

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采用作物产品养猪，猪粪好气堆腐的方法，研究了喂饲-堆腐过程中猪粪的磷素变化情况。

Dynamic phosphorus contents during breeding and composting process of pig manure were studied by feeding pig with crop production, composting pig manure at aerobic condition.

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按农艺学和用途可将中国作物分为8大类即粮食作物、经济作物、蔬菜作物、果树作物、饲用和绿肥作物、花卉作物、药用作物和林木作物。

The 8 kinds: food crop, economic crop, vegetable crop, fruit crop, forage and manure crop, flower crop, medicine crop and forest crop in China, according to agronomy and use were differentiated.

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