Study on the Improvement Effect of Humic Acid and Soil Conditioner Application Rate on Brown Soil
The effects of different activated humic acid soil conditioner on soil bulk density,organic matter con-tent,total nitrogen content and pH,growth and yield of maize were studied.The results showed that the use of ac-tivated humic acid has a positive effect on soil bulk density.Soil pH,the content of organic matter and total nitro-gen,maize,stem diameter,yields increased with soil conditioner and the use of activated humic acid is more effec-tive 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 per-cent.In a word,the use of activated humic acid and soil conditioner can improve physical and chemical character-istics 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.
soil conditionerhumic acidsoil physical and chemical propertiesyield
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