热带农业科学2026，Vol.46Issue(3)：17-21,5.DOI:10.12008/j.issn.1009-2196.2026.03.003
晚稻肥料利用率试验研究及优化建议
Experimental Study on the Fertilizer Utilization Rate of Late Rice and Optimi-zation Suggestions—Taking Qiaotou Town,Chengmai County,Hainan Province as an Example
摘要
Abstract
Taking the late rice variety BoⅡYou 629 planted in Qiaotou Town,Chengmai County,Hainan Province as the research object,field comparative experiments were conducted to explore the effects of optimized fertilization(N2P2K2)and conven-tional fertilization(CON)on rice yield and fertilizer utilization rate.Six treatments were set up in the experiment,including no fertilization treatment,nutrient deficiency treatments,and optimized fertilization treatment,and the rice yield,agronomic effi-ciency,and nutrient uptake amounts of nitrogen,phosphorus,and potassium were determined.The results showed that there was no significant difference in rice yield between optimized fertilization(N2P2K2,5 497.5 kg·hm‒2)and conventional fertili-zation(5 485.5 kg·hm‒2),while the nitrogen fertilizer utilization rate(35.7%)and phosphorus fertilizer utilization rate(13.1%)under optimized fertilization were significantly higher than those under conventional fertilization(31.5%and 4.4%,respec-tively),and there was no significant difference in the potassium fertilizer utilization rate between the two fertilization modes.Optimizing fertilization achieved a stable rice yield by reducing the application rates of nitrogen and phosphorus fertilizers(N application reduced by 28.0%and P application reduced by 80.0%),indicating scientific fertilizer input and improved fertilizer utilization efficiency.This study provides technical support for the green production of rice in Hainan.关键词
澄迈县/晚稻/博Ⅱ优629/优化施肥/肥料利用率Key words
Chengmai County/late rice/BoⅡYou 629/optimized fertilization/fertilizer utilization rate分类
农业科技引用本文复制引用
邱南英,曾令祥,严小微,唐清杰,韩义胜,翟李楠..晚稻肥料利用率试验研究及优化建议[J].热带农业科学,2026,46(3):17-21,5.基金项目
国家现代农业产业技术体系建设专项(No.CARS-01-92). （No.CARS-01-92）
