紫云英配施有机肥模式下水稻产量和田面水质量变化特征

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中图分类号：S153.5 文献标识码：A 文章编号：1006-060X（2025）09-0038-06

Abstract：ThisstudyaimstoexploretheefectsofapplyingChinesemilkvetchcombinedwithorganicfertilizeronthebasisofrice strawincorporationonthericeyieldandfeldsurface waterqualityindouble-croppingpadyfeldswithedsoil.Theexperimentwas cariedoutwihfetramentstroliotfertltio（CK）ealatiofroenosposd chemicalfertilizes（NPK），ombindapicatioofganicfrtilzesadcecalfertilers （NPKM），ombedalicatiof organic fertilizersand Chinese milkvetch （NPKM2+Chinese milkvetch），andcombined aplicationof Chinese milk vetchand chemical fertilizers （NPK+Chinesemilkvetch）.Thericeyield，economic traits，leafSPADvalue，andnitrogenandphosphorus contentinfieldsurfacewaterwerecomparedamongdiferentreatments.Theresultsshowedthatthfetilizationtreatmentsgeneraly increasedthericeyield，among which the NPKM2+Chinesemilk vetchtreatment hadthebesteffect，with theannualrice yield increasingby 6.0%-43.9% compared with those of other treatments.The SPAD valuesof late rice leaves in the NPK+Chinese milk vetch，NPKM，andNK2 + Chinese milk vetch treatments were higher than those in the CK and NPK treatments，indicating that returning Chinese milk vetchtothefieldand applyingorganic fertilizers enhanced thephotosyntheticcapacityof rice.The SPAD valuesoflateicelaveshadpositivecoelationswithlatericeyield，eectiveumberofpaniclesandtousandseedweight. Theperiodof2O-30daysafterfertilization wascriticalforthepreventionandcontrolofnon-pointsourcepolution.Atthis time， theconcentrationsofammoniumnitrogenandsolublephosphorusinfieldsurface waterincreased.Thus，itisconsideredthaton thebasisofricestrawicoporation，applyingChinesemilkvetchcombinedwithorganicfertilizerscanimprovethericeyieldand photosynthetic capacity，whileattentionshould be paid to the impact offertilization on the loss of nitrogen and phosphorusin the soil. The findings providea scientific basis for optimizing the fertilization strategyand preventingand controllingnon-point sourcepollution.

Keywords： fertilization mode;returning Chinese milk vetch and rice strawto the field; riceyield;qualityoffield surfacewater

随着农业现代化进程的加速，追求粮食高产的同时，保障农业生态环境安全成为可持续发展的核心议题。（剩余6845字）