腐植酸型功能肥料对酸化土壤改良和香蕉生长的作用  

Effect of Humic Acid Type Functional Fertilizer on Acidified Soil Improvement and Banana Growth

作　　者：苏初连 邓爱妮[1] 范琼[1] 罗金辉[1] 冯剑 杨衍[2] 赵敏[1] Su Chulian;Deng Aini;Fan Qiong;Luo Jinhui;Feng Jian;Yang Yan;Zhao Min(Hainan Provincial Key Laboratory of Quality and Safety for Tropical Fruits and Vegetables,Analysis and Testing Center,Chinese Academy of Tropical Agricultural Sciences,Haikou,571101;Tropical Crops Genetic Resources Institute,Chinese Academy of Tropical Agricultural Sciences,Haikou,571101)

机构地区：[1]中国热带农业科学院分析测试中心,海南省热带果蔬产品质量安全重点实验室,海口571101 [2]中国热带农业科学院热带作物品种资源研究所,海口571101

出　　处：《分子植物育种》2022年第6期1923-1929,共7页Molecular Plant Breeding

基　　金：海南省自然科学基金青年基金项目(320QN300);农业农村部农业技术试验示范与服务支持项目共同资助。

摘　　要：为加快新型功能性肥料开发,稳步推进化肥减量增效。本研究以pH值小于4的典型蕉园酸化土壤为试验对象,采用温室盆栽试验,研究腐殖酸型功能肥对酸化蕉园土壤理化性质、微观结构和香蕉生长的影响。研究结果表明,以追施水溶性复合肥为对照,追施腐殖酸型功能肥试验组土壤pH值提高0.53个单位,土壤交换性钙和阳离子交换量显著提高和保持了土壤养分含量,土壤颗粒数量增加体积变大,土壤团聚体蜂窝状结构变多,香蕉植株根系发达和植株生物量增加。腐殖酸型功能肥料有效改良土壤酸度、改善土壤理化性质和微观结构,提高了香蕉根系生态环境质量,促进了香蕉生长,追施腐殖酸型功能肥料是优化香蕉产业科学施肥结构、实现化肥减施增效的可行施肥措施。In order to speed up the development of new functional fertilizers,and steadily promote the fertilizers reduction.In this study,the acidified soil of a typical banana garden with pH<4 was taken as the research object,the greenhouse pot experiment was used to study the effect of humic acid type functional fertilizer on the physical and chemical properties,microstructure of the acidified banana garden soil and banana growth.The results showed that with the topdressing water-soluble compound fertilizer as control,the pH value of soil in the experimental group of topdressing humic acid type functional fertilizer increased by 0.53 units,and the soil exchangeable calcium and cation exchange capacity were significantly increased and maintained the soil nutrient content,the number of soil particles increases,the volume becomes larger,the honeycomb structure of soil aggregates becomes more,the root system of banana plants is developed and the plant biomass increases.Humic acid type functional fertilizer can effectively improve soil acidity,improve soil physical and chemical properties and microstructure,improve the ecological environment quality of banana roots,and promote banana growth.It is a feasible fertilization measure to optimize the fertilization structure of banana industry and realize the reduction and efficiency of chemical fertilizers.

关 键 词：腐殖酸型功能肥料 科学施肥 土壤改良 根系生长 

分 类 号：S156.6[农业科学—土壤学] S668.1[农业科学—农业基础科学]