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云南省滇中水浇地一年三熟超高产研究和开发表明:①水浇地一年三熟667m~2年产量可达2t;②超高产关键在于保持全年较高绿叶面积生产,最大限度地挖掘光能潜力;③技术途径是挖掘玉米多穗大穗的优势,小麦在合理的群体结构下主攻穗重;④一年三熟超高产有较高的肥料生产率和劳动生产率.“,” The results of study on super-high-yielding of three crops one year under irrigation in central Yang indicated that(1)the yield of three crops in one year might reach two ton per mu one year; (2)the super-high yields lied in utilization of solar radiation productivity to its potential with high photosynthesis all year round; (3)the technology was to maximally take advantages of heavy ears of maize and wheat with high population in Yunnan;(4)there were high fertilizer and labor productivity under super-high-yielding three crops one year system.