新型控释肥对水稻产量与氮肥利用率的影响探讨

,ZhejiangXiaoshan311201/China)Abstract:Usingjaponicavarieties"XiuShui11(Fand“XiuShui1fieldexperimentswerecarriedouttotesttheeffectsofnewcontrolledreleasefertilizersonriceyieldandnitrogenuseefficiency.paretoPU100%(PrilledUrea)at210kgNhnCinconventionalfertilizerapplication,thericegrainyieldsweresignificantlyincreased16.0%and8.2%byasinglebasalapplicationofCRU100%(Controlled-releaseUrea)andCRU70%+PU30%whichwere8242.3kghm、and7694.2kghm二andthenitrogenuseefficiencieswere27.38%and26.57%whichweresignificantlyincreased144.90%and137.66%.ComparetoPU100%at240kgNhrrf,thericegrainyieldwas7021.4kghm^whichwassignificantlyincreased2.9%andthenitrogenuseefficiencywas36.80%whichwassignificantlyincreased37.52%byasin創cbasalapplicationofCRU100%.Keywords:Controlledreleasefertilizer;Yield;Nitrogenuseefficiency;Rice