机插水稻侧深减施缓释掺混肥节本增效试验

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中图分类号 S511 文献标识码A 文章编号 1007-7731（2025）18-0031-03

DOI号 10.16377/j.cnki.issn1007-7731.2025.18.008

Experiment on cost reduction and efficiency improvement by side-deep fertilization with reduced rate of slow-release blended fertilizer in machine transplanted rice

LIU Guoqing （Agricultural and Rural Affairs Ofice of Nanshan Subdistrict，Ningguo 2423oo， China）

AbstractTo investigate theeffctsof side-deep fertilizationof slow-release blended fertilizeron the growth and yield of machine-transplanted rice，a field experiment wasconducted using rice cultivar Jingliangyou 1125.5 treatments were designed： CK （conventional manual fertilization + machine transplanting）， T1 （side-deep fertilization + （20 conventional amount）， T2 （side-deep fertilization with 10% reduction）， T3 （side-deep fertilization with 20% reduction）， and T4 （side-deep fertilization with 30% reduction）.The growth period，agronomic traits （such as plant height and effctive panicle number），and yield were observedand measured.Theresults showed that side-deep fertilization had no significant effcton the growth periodof rice.There were no significant diferences in plantheight，grainnumber per panicle，or1 OOO-grain weight amongthe treatments.The numberof effective panicles inthe side-deep fertilization treatments was1.1-3.5 panicles/cluster higher than that in CK.The average yield increased by 2.8%-24.9% compared to CK.Among them，treatment 2 had the highest numberof effctive paniclesand yield，which were 14.1 panicles/cluster and 11 089kg/hm2 ，respectively.In conclusion，side-deep fertilization can promote rice tillering， increase efective panicle number，and thereby improve rice yield.Moreover，under reduced fertilizer application conditions，the yield is higher，achieving the goal of cost reduction and efficiency improvement.

Keywordsmachine transplanted rice; side-deep fertilization; reduced fertilization; rice yield

近年来，部分粮食种植主体为提高单产，过量施用化肥，导致肥料流失、利用率低，一定程度上造成了资源浪费和环境污染。（剩余2827字）