稻麦两熟地区水稻抛秧栽培技术研究 Ⅰ育秧方式、软盘育苗叶龄与本田抛栽密度  

Studies on the Cultural Technique of Scattered Transplanting Rice for Rice Wheat Cropping SystemⅠ Seedling Nursing Methods,Sowing Quantity,Leaf age and Scattered Transplanting Density

作　　者：郑家国[1,2] 陈启元 金问模[1,2] 张鸿[1,2] 姜心禄[1,2] 

机构地区：[1]四川省农科院作物所 [2]四川省广汉市农技推广中心

出　　处：《西南农业学报》1998年第S3期96-103,共8页Southwest China Journal of Agricultural Sciences

摘　　要：针对四川盆地的生态特点及种植制度的需求，研究了稻麦两熟地区水稻抛秧栽培中的育秧方式、软盘育苗播种量和叶龄以及本田抛栽密度、氮素用量及施氮配比等项技术，结果表明，旱地盘育大苗的稻谷产量最高；２０ｇ／盘以下（粉嘴谷）的播种量有利于培育壮秧；播期愈迟，秧龄愈短，分蘖株、平均单株带蘖、有效穗、千粒重和产量愈少；抛栽密度与有效穗数、稻谷产量呈正相关。According to the ecological characteristics and cropping systems in Sichuan Basin,seedling nursing methods,sowing quantity,leaf age at nursery stage and scattered transplanting density,nitrogen amount and its applying ways for scattered transplanting rice in paddy field of rice wheat cropping system were studied.The results indicated as follows:the grain yield of older seedling of upland nursery with plastic plate is the highest;it was beneficial to develop strong rice seedling under sowing quantity of 20g per plastic plate(germination grain);the later the sowing date and the shorter the seedling age was,the less seedling with tillers,average tillers per plant,effective panicle number,1000 grain weight and grain yield were.There existed positive correlation between scatteredtransplanting density and effective panicle number and grain yield.

关 键 词：稻麦两熟 杂交中稻 抛秧 育秧方式 播种量 叶龄 抛栽密度 栽培技术 

分 类 号：S511.320.4[农业科学—作物学]