摘要
针对我国高山冷凉地区反季节辣椒生产中肥料利用率低的问题,筛选适合高海拔地区辣椒生产的增效剂对提升产量与肥效具有重要意义。设置25%聚谷氨酸、聚谷氨酸豹根粉等7种增效剂处理,以清水为对照,采用单因素随机区组设计开展试验。结果表明,EM菌液处理对辣椒株高促进作用显著,较对照显著增加14.04%,且增产效果最佳,产量达3255.73 kg·667 m^(-2),增产率35.74%。植物酵素有机肥处理下辣椒可溶性糖含量(w,后同)最高,为0.425%;聚谷氨酸豹根粉处理的辣椒可溶性蛋白和干物质含量最高,分别为5.34 mg·g^(-1)和8.77%;25%聚谷氨酸处理显著提高辣椒根际土壤速效氮、速效钾和有机质含量,分别为87.03 mg·kg^(-1)、152.37 mg·kg^(-1)和4.35%,较对照分别显著提高11.68%、23.40%和1.28百分点。综上,不同增效剂对辣椒农艺性状、产量、品质及根际土壤养分含量的影响差异明显。研究结果为高海拔地区辣椒种植中增效剂的科学选用提供了依据。
In view of the low fertilizer utilization rate of off-season pepper production in high-altitude cold regions of China,screening suitable enhancers for pepper in high-altitude areas is of great significance for increasing yield and fertilizer efficiency.Seven enhancer treatments,including 25%polyglutamic acid and polyglutamic acid leopard root powder,were set up,with clear water as the control.Single-factor randomized block design was adopted for the experiment.The results showed that EM bacterial liquid treatment significantly promoted the plant height of pepper,increasing by 14.04%compared with the control,and had the best yield-increasing effect,the yield was 3255.73 kg·667 m^(-2),an increase of 35.74%.The treatment with plant enzyme organic fertilizer had the highest soluble sugar content in pepper,reaching 0.425%.The treatment with polyglutamic acid leopard root powder had the highest soluble protein and dry matter content in pepper,which were 5.34 mg·g^(-1)and 8.77%,respectively.The 25%polyglutamic acid treatment significantly increased the available nitrogen,available potassium and organic matter content in the rhizosphere soil of pepper,which were 87.03 mg·kg^(-1),152.37 mg·kg^(-1)and 4.35%,respectively,increasing by 11.68%,23.40%and 1.28 percent points compared with the control.In conclusion,different enhancers have significant differences in their effects on the agronomic traits,yield,quality and nutrient content of rhizosphere soil of pepper.The research results provide a basis for the scientific selection of enhancers in pepper cultivation at high-altitude areas.
作者
李孟瑶
易礼美
杨柳
吴金平
郭凤领
LI Mengyao;YI Limei;YANG Liu;WU Jinping;GUO Fengling(Wufeng Tujia Autonomous County Vegetable Specialty Industry Center,Yichang 443413,Hubei,China;Institute of Economic Crops,Hubei Academy of Agricultural Sciences,Wuhan 430064,Hubei,China)
出处
《中国瓜菜》
北大核心
2025年第8期166-170,共5页
China Cucurbits And Vegetables
基金
湖北省农业科技创新中心项目(2024-620-000-001-007)
国家特色蔬菜产业技术体系(CARS-24-G-17)。
关键词
辣椒
高海拔地区
肥料增效剂
产量
品质
土壤养分
Pepper
High-altitude region
Fertilizer enhancer
Yield
Quality
Soil nutrient
