基于侧深施肥条件下氮肥减施对水稻产量构成及经济效益的影响  

Effect of Nitrogen Fertilizer Reduction under Side-deep Fertilization Condition on Yield Components and Economic Benefits of Rice

作　　者：赵永梅[1] 金竹 高正宝 张锐 李军[1] ZHAO Yong-mei(Fengyang County Agricultural Technology Extension Center,Fengyang,Anhui 233100)

机构地区：[1]凤阳县农业技术推广中心,安徽凤阳233100 [2]全椒县农业技术推广中心,安徽全椒239500 [3]滁州市农业农村技术推广中心,安徽滁州239000

出　　处：《园艺与种苗》2025年第3期89-91,共3页Horticulture & Seed

摘　　要：[目的]探索侧深施肥条件下氮肥减施对水稻产量构成、氮肥利用以及经济效益等方面的影响。[方法]以单季稻为试验材料,采用单因子设计,设置不施氮肥、常规施肥、侧深施减氮肥等6个处理进行比较分析。[结果]应用缓混肥一次性侧深施能够有效增加水稻分蘖成穗数、每穗实粒数,提高水稻结实率以及氮肥利用效率。[结论]应用缓混肥一次性侧深施较常规施肥在减氮19.6%的范围内,既能实现增产,又能提高水稻种植收益,是一项提高水稻产量和氮肥利用效率的有效措施。[Objective]To explore the effects of nitrogen fertilizer reduction on rice yield components under the condition of side-deep fertilization,nitrogen fertilizer utilization and its impact on economic benefits.[Method]Single-cropping rice as experimental material,using single-factor design,set up six treatments:no nitrogen fertilizer,conventional fon,side deep application of reduced nitrogen fertilizer,etc.Conduct comparative analysis.[Result]Application of compound fertilizer one-time side-deep application can effectively increase the number of rice tillers and panicles.Number of filled grains per panicle;improve the grain flling rate and nitrogen fertilizer use efficiency of rice.[Conclusion]Application of controlled-release fertilizer by one-time side-deep placement compared to conventional fertilization within the range of nitrogen reduction by 19.6%,not only can it increase production,but also improve the benefits of rice planting.It is an effective measure to improve rice yield and nitrogen fertilizer utilization efficiency.

关 键 词：侧深施肥 氮肥减施 氮肥利用效率 经济效益 

分 类 号：S511[农业科学—作物学]