应用腐植酸土壤调理剂改良棕壤效果研究

Study on the Improvement Effect of Humic Acid and Soil Conditioner Application Rate on Brown Soil

研究了不同腐植酸土壤调理剂施用量对棕壤区耕地土壤容重、有机质含量、全氮含量、酸碱度及玉米长势的影响。结果表明:施用活化腐植酸对于改良土壤容重具有显著作用;施用土壤调理剂及活化腐植酸均对有机质含量的提高、土壤pH值的上升具有促进作用,均能够显著增加玉米的株高,提高玉米产量,施用土壤调理剂较对照最高增产15.62%,而施用活化腐植酸处理的玉米产量较对照增产21.22%。总之,施用土壤调理剂及活化腐植酸对于改善土壤理化性质,提高土壤质量,增加土壤养分,促进作物生长,提高玉米产量,有着积极作用,且施用活化腐植酸要比施用土壤调理剂效果好。

The effects of different activated humic acid soil conditioner on soil bulk density,organic matter content,total nitrogen content and pH,growth and yield of maize were studied.The results showed that the use of activated humic acid has a positive effect on soil bulk density.Soil pH,the content of organic matter and total nitrogen,maize,stem diameter,yields increased with soil conditioner and the use of activated humic acid is more effective than equal soil conditioner.The soil conditioner application can increase maize yield by 15.62 percent as much as possible compared to control and the use of activated humic acid can increase maize yield by 21.22 percent.In a word,the use of activated humic acid and soil conditioner can improve physical and chemical characteristics of soil effectively,improve soil quality,increase soil nutrients,promote crop growth and raise the yield of maize.The use of activated humic acid is more effective than equal soil conditioner.