紫色土坡耕地耕层质量障碍特征
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Quality Barrier Characteristics of Cultivated Layer for Sloping Farmland in Purple Hilly Region
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图5. 不同地力等级坡耕地农作物产量对耕层质量指数的响应特征 |
Fig. 5. Response of crop yield to cultivated layer quality index of sloping farmland with different land productivity grades |
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