氮磷钾肥减量与生物炭配施对土壤性状及玉米产量的影响

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中图分类号S513;S147 文献标识码A 文章编号 1007-7731（2025）15-0094-05

DOI号10.16377/j.cnki.issn1007-7731.2025.15.023

Effects nitrogen，phosphorus potassium fertilizer reduction biochar rationing on soil properties maize yield

LI Jinzhe ZHANG Jianhua QIGangqiang LU Shuo JIAO Zhiqi SONG MingWANG Tianen PAN YuzhenWANG Zhihui （ Lscape University， Daqing 163319， China）

AbstractFive treatments were setup in aromized block design for salinized maize fields in the Songnen Plain， Xianyu335maizewasusedasthe testvarietyconventional fertilization withnitrogen，phosphoruspotasum（CK）， NPK reduction by 20% + biochar （CF1）， N reduction by 20%+ conventional phosphorus potassium + biochar （CF2）， phosphorus reduction by 20%+ conventional NPK + biochar（CF3）， potassium reduction by 2O% + conventional NPK + （204号 biochar（CF4）weresettoinvestigate the effects nitrogen，phosphorus potassum fertilizerreduction biochar applicationonsoil physicochemical properties maize yield.The results showedthat the CF4 treatment had abeter improvement effectonsoil properties， itssoilorganiccarbon （SOC），total nitrogen （TN）efectivephosphorus （AP）were increased by 13.40% ， 5.93% 58.86% compared with that CK，the activities sucrase （SUC） alkalinephosphatase （ALP）were significantlyincreased.Atthe same time，the dosing treatment obviouslypromoted the accumulation N，P K inmaizeplants，the accumulationamounts nitrogen，phosphorus potassium increased by 3.32%-23.04% ， 31.93%-38.65% 5.51%-13.62% respectively compared with CK，indicating that the application biochar can effectively promote thenutrient uptakeby the plants.In conclusion，the combination nitrogen，phosphorus potassium fertilizerreduction biocharcanregulate soil nutrients，improveplantnutrient uptake， increase corn yield，in which the treatment 20% potassium reduction+conventional nitrogen phosphorus + biochar has more potential for fertilizer saving yield increase.

Keywords biochar; fertilizer reduction; soil nutrients; soil enzyme activity;maize yield

土壤能提供植物生长必需的养分和水分。（剩余6585字）