The invention relates to the technical field of soil improvement, in particular to a yellow soil improvement method based on
green manure and
charcoal. The yellow soil improvement method based on
green manure and
charcoal comprises the following steps: planting common vetch in yellow soil in the fourth quarter of the first year; in the second quarter of the next year, the grown
vicia sativa seedlings and the
charcoal are turned and pressed together, base
fertilizer is applied, and preliminary improvement of the yellow soil is achieved; crops are planted into the yellow soil after preliminary improvement, first topdressing is applied after a first time interval to achieve secondary improvement of the yellow soil, second topdressing is applied after a second time interval to achieve
tertiary improvement of the yellow soil, and nutrients, aggregate stability and
enzyme activity of the yellow soil are obviously improved through the
tertiary improvement. The problems that existing yellow soil is viscous and heavy in texture, poor in
tilling performance, low in natural
fertility, high in acidity and relatively low in water and
fertilizer retention capacity, soil exchangeable salt bases are remarkably lacked, the salt base saturation degree is generally smaller than 20%, and the
nitrogen leaching loss phenomenon of the yellow soil is serious are solved.