青海省"十五"期间农田化学除草工作情况及今后化学除草工作设想青海省"十五"期間農田化學除草工作情況及今後化學除草工作設想 청해성"십오"기간농전화학제초공작정황급금후화학제초공작설상 Situation of Cropland Chemical Weeding in Qinghai's 10th Five-year Plan and Assumption on Chemical Weeding in the Future
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青海农技推广青海農技推廣청해농기추엄 QING HAI ACROTECHNOLOGY EXIENSLON 2006年4期5,10,共2页
