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一季中熟稻在蕪湖地区水稻生产上占有很大比重,約为水田面积的60——70%。适期早栽是中稻最有效的增产措施。伹由于前茬有一部分是小麦与紫云英留种田,小麦、紫云英成熟迟,这部分中稻必定要迟栽。中稻迟栽比适期移栽要減产20——40%。迟栽中稻的主要部分是麦茬中稻,近年来麦田面积增加很大,迟栽中稻面积比重也就不小。因此,进一步分析迟栽中稻減产原因、研究探討其增产技术,对全面提高中稻产量有重要意义。
A quarter of paddy rice in Wuhu area occupies a large proportion of rice production, about paddy field area of 60 - 70%. Appropriate early planting is the most effective stimulation of middle rice.伹 As a part of the previous crop is left with wheat and milk vetch farming, wheat, milk vetch mature late, this part of the rice must be planted late. In late rice planted than the appropriate transplanting to cut 20 - 40%. The main part of late-planted medium-sized rice is stubble medium-sized rice. In recent years, the area of wheat fields has increased greatly, and the proportion of late-planted medium-sized rice has not been small. Therefore, to further analyze the reasons for the late cut of medium-sized rice production, to study and explore its yield-increasing technology, to comprehensively improve the yield of medium-sized rice is of great significance.