腐殖酸水溶肥水肥一体化技术对玉米生长及化肥减量的影响

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中图分类号 S513 文献标志码A 文章编号 1007-7731（2026）07-0018-04

DOI号10.16377/j.cnki.issn1007-7731.2026.07.005

Effects of humic acid water-soluble fertilizer with integrated water-fertilizer technology on maize growth and chemical fertilizer reduction

Liu XiangruChen Shujuan Li ZhiGuo Qingru Ji Yinhua WangNan （Shizuishan Agricultural Technology Extension and Service Center，Shizuishan 753ooo， China）

AbstractTo investigate theeffcts of integrated waterand fertilizer managementwith organic water-soluble fertilizers onmaizegrowth，fertilizerreductionand eficiency improvement，a fieldexperimentwasconductedusing maize variety Dafeng 899as the test material.2 treatmentswere established：conventionalfertilization （CK：urea， diammonium phosphate，potassium chloride）and humicacid water-soluble fertilizer application （maize growth fertilizer，maizeear-promoting fertilizer，fast-actingcontrolld-releasenitrogen fertilizer，andKetainitrogen）.The growthperiod，agronomic traits，grainyield，economicbenefitandchemical fertilizerreductionunderdierent treatments were determined.The results showed thatthe growth period of maize under both treatments was 135 days. Compared with conventionalfertilization，the water-soluble fertilizer treatment increasedearlengthandeardiameter by 0.1 and0.15cm，respectively，and decreased plant height，ear heightand ear tip length by5.5，11.2and1.0 cm， respectively.Meanwhile，it increased earnumber，kernels perearand10O-kernel weightby90 earsper 666.7m²，4.3 kernelsand1.6g，respectively.The measured yield andaverage outputvalue under the water-soluble fertilizer treatment were 1 048.1 kg/666.7 m² and 2 829.9 yuan /666.7 m²，which were 8.2% higher and 214.7 yuan/666.7 m² higher than thoseof conventionalfertilizers.The average fertilizerapplicationrate was 40 kg/66.7m，representing a reduction of 55.6% in total fertilizer rate and 63.0% in pure nutrient amount compared with conventional fertilization. In conclusion，the appicationof humicacid water-soluble fertilizercanincrease maizeyield，reduce fertilizer input，and achieve higher yield，fertilizer saving and economic eficiency，thus showing promising application prospects.

Keywordsmaize；humicacid water-soluble fertilizer;integrated waterand fertilizermanagement；chemical fertilizerreduction

玉米是宁夏地区的主要粮食作物之一，其生产中的水肥利用效率直接关系到区域粮食安全与生态可持续性。（剩余5122字）