• Henan province is the major grain producing area of China, as well as one of main traditional flower producing areas.

    摘要河南省我国重要粮食主产省,也是我国重要花卉传统生产区域之一

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  • 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.

    本文采用参数估计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

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  • Heilongjiang Province is an important major grain-producing area, and the per capita share of cultivated land in China takes the first place.

    黑龙江省我国重要粮食主产区耕地面积人均占有量都居我国首位。

    youdao

  • Heilongjiang Province is an important major grain-producing area, and the per capita share of cultivated land in China takes the first place.

    黑龙江省我国重要粮食主产区耕地面积人均占有量都居我国首位。

    youdao

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