中国生态农业学报2025，Vol.33Issue(6)：1046-1060,15.DOI:10.12357/cjea.20240772
控释与速效氮肥侧深配施比例对稻田氨挥发与温室气体排放的影响
Effect of ratios of controlled-release nitrogen fertilizer to ordinary urea with side-deep application on NH3 volatilization and greenhouse gas emissions in paddy field
摘要
Abstract
The innovative demonstration of side-deep application technology combining slow/controlled-release nitrogen(N)ferti-lizer with urea for low ammonia volatilization and carbon emission reduction provides a new pathway for the safe and high-quality production of modern rice.In this study,the late-maturing medium japonica rices'Nanjing9108'and'Taixiangjing1402',mainly popu-larized in Jiangsu Province,were selected as materials.Novel resin-coated urea and quick-release urea(ordinary urea)were used as N fertilizers.Under the optimal operational ratio of 70％ base and tillering N fertilizers to 30％ panicle N fertilizers,five treatments with different ratios of controlled-release N fertilizer to quick-release N fertilizer(herein after referred to as"controlled-to-quick ratio")with side-deep application of base and tillering fertilizers were established:10∶0(D10∶0),8∶2(D8∶2),6∶4(D6∶4),5∶5(D5∶5),and 4∶6(D4∶6).Additionally,conventional fertilizer application(base and tillering N fertilizers such as quick-release N fertilizer broadcasted,FFT)and no N fertilizer application(0N)treatments were established.The NH3 volatilization,N2O and CH4 emission patterns,and environmental impacts of different"controlled-to-quick ratio"treatments were analyzed.The results showed that:1)For both rice varieties,the whole growth period cumulative NH3 volatilization and emission intensity of different"controlled-to-quick ratio"treatments first decreased and then increased as the proportion of controlled-release N fertilizer decreased,and these indicators under the D5∶5 treatment were significantly lower than the other treatments,with reductions of 58.31％ and 61.59％ for'Nanjing9108'and 46.72％ and 49.24％ for'Taixiangjing1402'compared to the FFT treatment.The next lowest was the D4∶6 treat-ment.2)The whole growth period cumulative N2O emissions of both rice varieties also followed a trend of first decreasing and then increasing with the decreasing proportion of controlled-release N fertilizer.The whole growth period cumulative N2O emissions un-der D5∶5 treatment had the lowest emissions,with reductions of 40.03％ and 34.93％ for'Nanjing9108'and'Taixiangjing1402',re-spectively,compared to the FFT treatment,and both were significantly lower than the other treatments.However,the whole growth period cumulative CH4 emissions,global warming potential,and greenhouse gas emission intensity increased as the proportion of controlled-release N fertilizer decreased.The whole growth period cumulative CH4 emissions of the two varieties under the D10∶0 treatment was the lowest.The global warming potential,and greenhouse gas emission intensity of'Nanjing9108'under the D10∶0 treatment were also the lowest,while these two indicators of'Taixiangjing1402'under the D8∶2 treatment were the lowest,which showed no significant difference compared to the D10∶0 treatment.Compared to the FFT treatment,the whole growth period cumu-lative CH4 emissions,global warming potential,and greenhouse gas emission intensity under D10∶0 treatment decreased by 38.93％,37.74％,and 39.53％ for'Nanjing9108'and 41.30％,40.04％,and 41.72％ for'Taixiangjing1402'.In summary,the"controlled-to-quick ratio"of 5∶5 is suitable for high-yield and ammonia-controlled production for japonica rice,while the"controlled-to-quick ra-tio"of 10∶0 favors green,low-carbon,and emission-reduction production.关键词
稻田/基蘖肥/侧深施肥/控释氮肥/配施比例/氨挥发/温室气体排放Key words
paddy field/base and tillering fertilizers/side-deep application/controlled-release nitrogen fertilizer/combined applica-tion ratio/NH3 volatilization/greenhouse gas emissions分类
农业科技引用本文复制引用
郭松,杨凤萍,汪源,王子君,韩磊,蒋格,赵灿,王维领,张洪程,霍中洋..控释与速效氮肥侧深配施比例对稻田氨挥发与温室气体排放的影响[J].中国生态农业学报,2025,33(6):1046-1060,15.基金项目
江苏省科技厅碳达峰碳中和科技创新专项(BE2022424)、江苏省农业科技自主创新基金[CX(22)1001]、江苏省研究生科研实践创新计划(KYCX24_3787)、泰州市重大科技成果转化专项(T2024-1)和国家水稻产业技术体系项目(CARS-01)资助 This study was supported by the Science and Technology Innovation Project of Carbon Peak and Carbon Neutral of Jiangsu Provincial Science and Technology Department(BE2022424),Jiangsu Provincial Agricultural Science and Technology Independent Innovation Fund[CX(22)1001],Jiangsu Provincial Postgraduate Scientific Research Practice Innovation Plan(KYCX24_3787),Taizhou Major Scientific and Technological Achievements Transformation Project(T2024-1),and the National Rice Industry Technology System of China(CARS-01). （BE2022424）
