云南水稻精确定量栽培百亩连片亩产吨粮的原因分析
운남수도정학정량재배백무련편무산둔량적원인분석
Cause Analysis on Grain Yield of the 11300 kg/667m2 for 67 000 m2 Area Planted in Succession under Rice Precise and Quantitative Cultivation in Yunnan Province
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