四种油菜测产方法的比较研究  

Comparison of four yield estimating methods in rapeseed field

作　　者：官春云[1] 谭太龙[1] 王国槐[1] 何激光[1] 

机构地区：[1]湖南农业大学油料作物研究所,湖南长沙410128

出　　处：《中国油料作物学报》2010年第2期187-190,共4页Chinese Journal of Oil Crop Sciences

基　　金：国家油菜产业技术体系建设专项(nyc-00509);国家863计划(2006BAD21B03)

摘　　要：为了研究简单、快速、准确的油菜测产方法,本文比较了4种油菜测产法:常规法、取样法、单位面积角果数法和催熟收获法。结果表明,常规测产法是通过少数样本资料换算而来,所得理论产量结果普遍高于实际产量,且平均差异最大;取样测产法操作简便,与实际产量差异最小;单位面积角果数测产法与实际产量差异较小,操作简便,但是需要通过取样获得不同品种的单位面积角果数与实际产量回归方程;催熟收获测产法准确度高,前提是准确测定菜籽含水量和含杂率,这种方法适合南方冬油菜大面积催熟后机械收获测产,也适合于过熟机械收获测产。Yield estimating of rapeseed in field is very important. In order to find a simple,rapid and accurate measurement of yield,four estimating methods were compared,which included conventional way,sample test method,silique-number-per-unit-area method and ripener-threshing combining method. The results showed that yield from conventional way was generally higher than actual output,and had the greatest difference among the averages,for it measured through the conversion of small amount of sample. Sample test method and silique-numberper-unit-area method were simple and close to actual yield,although a regression equation was needed for the latter. The ripener-threshing combining method determined with high accuracy,but seeds water rate and impurity rate had to be accurately measured. This method was suitable in Southern China to after-ripening or over-ripening mechanical harvest in large areas for winter rapeseed.

关 键 词：油菜 测产 方法比较 

分 类 号：S565.401[农业科学—作物学]