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.
通过田间试验研究了不同氮肥水平黑麦草—水稻和小麦—水稻两种种植模式的水稻产量、经济效益和对土壤肥力的影响。
The field experiments were carried out to evaluate the rice yields, economic benefits and soil fertility of ryegrass-rice and wheat-rice cropping systems under different nitrogen fertilizer rates.
本文采用非参数估计的信息扩散模型测算了我国粮食主产区水稻、玉米、小麦和棉花产量损失风险水平。
The paper applied the information diffusion model of non-parametric estimation to project the level of productivity risks for cereals, rice, corn and wheat at major grain-producing area.
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.
研究表明，如果不采取任何措施，到21世纪后半期，中国主要农作物，如小麦、水稻和玉米的产量最多可下降37%。
It is reported that, inaction will lead to a maximum decline of yields of China's main crops, e. g. wheat, rice and maize, by the later half of 21st century.
研究表明，如果不采取任何措施，到21世纪后半期，中国主要农作物，如小麦、水稻和玉米的产量最多可下降37%。
It is reported that, inaction will lead to a maximum decline of yields of China's main crops, e. g. wheat, rice and maize, by the later half of 21st century.
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