大家在查：意外连连 Hingning 宜春市丰拉·路易·拉迈克尔•布卢姆奥洛拉·格雷 EileenFahey 奥罗拉·卡斯特拉提 XYNY 恩·默

麦玉

麦玉

麦玉

1

The relationship between grain output and fertilizer input in wheat-corn cropping area of the Huang -Huai-Hai plain

黄淮海平原麦玉两熟区粮食产量与化肥投入关系的研究

2

Chemical fertilizers input and soil nutrient resources in winter wheat -corn rotation system in Huantai County

桓台县麦玉两熟系统化肥投入及土壤养分资源研究

3

Study on the effects of potash application on wheat -maize-sweet potato rotation cropping system in fixed upland

旱地麦 -玉 -苕轮作中钾肥效益定位研究

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