抛秧稻田稻株分布对群体产量的影响

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Effects of rice plant distribution on population yield in paddy fields with seedling throwing

WU XiaDUAN Shaokun LI Huanqun WANG Xiaohui ZHU Xinghui LI Xumeng （College of Agronomy， Hunan Agricultural University， Changsha 41Oooo， China）

AbstractTo investigate the efectofrice plant distribution onyield in paddy fields with seedling throwing，the high yieldcultivation techniques of seedling throwing riceand theinfluenceofcrop distributiononpopulation yield were summarized and analyzed.The high yield cultivation techniques of rice sedling throwing include reasonable seedling cultivationand the formationof strong seedling；choosing soil bearingseedlings for throwing planting toensure rice seedlings stand upright； paying atention to even sowing during planting to promotethe robust growth of seedlings and improvetheir quality.In termsof the impact ofcropdistributiononpopulation yield，anappropriatebasic seedling density can enhance rice tillering，increase the number of effctive panicles，and thus improve population yield. Reasonableplantinguniformitycanenableplants to fullyutilizeresourcessuchas light，water，andsoil，reduce competitionbetween individuals and populations，construct reasonable populationdynamics，andthus achieve high rice yields.This article provides a reference for high yield cultivation of seedling throwing rice.

Keywords rice； seedling throwing； non-uniform distribution； population yield

水稻是主要的粮食作物之一，其安全生产对保障粮食安全具有重要意义。（剩余6055字）