其次，小麦和水稻的产量增长一直低于玉米和大豆。
Second, yield growth has been lower in wheat and rice than in corn and soyabeans.
中国农业产量全球第一，主要生产水稻、小麦和豆类。
China 's agriculture output ranks the first all over the word, and it mainly produce rice, wheat and beans.
通过对前茬作物小麦设置施用氮肥与不施用氮肥处理研究它对土壤肥力及后茬作物水稻产量和氮肥利用率的影响。
The effect of applying N-fertilizer or not in wheat on soil fertility and grain yield and fertilizer-N use efficiency (FNUE) of rice in the wheat-rice cropping system were studied.
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