控释肥料对中稻生长及养分利用效率的影响

打开文本图片集

中图分类号 文献标识码A 文章编号 1007-7731（2025）17-0025-04

DOI号10.16377/j.cnki.issn1007-7731.2025.17.007

Effects of controlled release fertilizer on growth and nutrient utilization efficiency of mid-season rice

LIU Jinping'XIE Yuanyang1LI Rong²DENG Xiaojuan³LIU Hongping

（1Jiangxi Chongyi Agricultural Technology Extension Center， Chongyi 3413Oo， China; ²Jiangxi Chongyi Hengshui Convenience Service Center，Chongyi 3413oo， China; （2 3 Zhanggong Brigade，Jiangxi Ganzhou Agricultural Comprehensive Administrative Law Enforcement Detachment， Ganzhou 341000，China）

AbstractToclarifytheapplicationof 48% controlled release fertilizer inmid-season riceproduction，the rice varietyPingliangyouyazhanwasusedas thematerial.5 fertilizer treatmentswereestablished in Chongyi County， Ganzhou， Jiangxi Province （T1， nitrogen free zone，calcium， magnesium， phosphorus+potassum chloride; T2， phosphorus free zone， urea+potassum chloride; T3，potassum free zone，urea+calcium， magnesium，and phosphorus; T4，nitrogen phosphorus potassium zone， 48% controlled release fertilizer; T5，blank area）.The effects of these treatments onricegrowth period，mainagronomic traits，yield，andfertilizeruseeficiencywere investigated.Theresults showed that the total growth periodof rice underdiferent treatments ranged from129 to133 days.The application of controlled-release fertilizer was found to accelerate seedling recoveryand prolong thetillering and heading stages.In termsof mainagronomictraits，plant heightvariedfroml01.9 to121.2cm，and theseedsettingrateranged from 66.90% to 74.22% . The use of controlled release fertilizer increased the effective panicle number and seed-seting rate of mid-seasonrice.Both grain yieldand straw yieldwere the highest in the T4 treatment，reaching 560.28 and 509.81kg/667m2 ，respectively. The nitrogen， phosphorus，and potassium use efficiencies were 37.33% 26.17% ，and 52.56% ，respectively， with potassium use efficiency being the highest. In conclusion， 48% controlled release fertilizer was beneficial forincreasing mid-season rice yield.This study provides areference for the promotion and application of controlled release fertilizer in agricultural production.

Keywordsmid-season rice; controlled release fertilizer; fertilizer utilization rate; reductionand efficiency

新型控释肥料通过包膜等方式减缓了养分释放的速度，生长前期可控制水稻茎秆基部节间伸长，在生长中后期为水稻幼穗分化和生长发育提供了营养保障，实现稳产增效的同时节约成本[1-2]。（剩余4255字）