Oil-tree-new-forestation soil moisture and fertilizer retention method

Abstract

The invention discloses an oil-tree-new-forestation soil moisture and fertilizer retention method. The oil-tree-new-forestation soil moisture and fertilizer retention method includes the following steps that paspalum natatu is selected as a grass seed for improving the soil moisture and fertilizer retention capacity in a south red-soil-area oil-tree new forestation; according to the forest slope and the land preparation mode, different planting modes are adopted; organic fertilizer special for oil tea is laid in ditches; paspalum natatu seeds and substrate are stirred evenly and evenly sowed in the ditches for planting; a non-woven fabric is covered along the ditches, and the two edges are pressed with fine soil; when the paspalum natatu grows to be 3 cm or above, the non-woven fabric is uncovered; 10 kg / mu-15 kg / mu nitrogen fertilizer is additionally applied; after the next year, the paspalum natatu is mowed in May every year, the paspalum natatu in the perpendicular projection range of crowns of young trees of the oil tea is eliminated, the periphery of oil-tea stems close to roots is covered with the mowed and eliminated paspalum natatu, and 20 kg / mu-25 kg / mu nitrogen fertilizer is additionally applied. The oil-tree-new-forestation soil moisture and fertilizer retention method has the remarkable effects on improving the oil-tea-forest soil organic substance and nutrient content, preventing other weeds from growing and improving the biological diversity.

Description

technical field [0001] The invention belongs to the technical field of forestry, and relates to a method for retaining water and fertilizer in soil for newly planted Camellia oleifera. Background technique [0002] At present, due to the unscientific mechanized full reclamation or land preparation with reclamation in the early stage, the Camellia oleifera new afforestation base has problems such as bare surface, serious soil erosion, severe damage to the topsoil layer, and poor water and fertilizer retention capacity. At present, there have been attempts to improve the soil by planting ryegrass and bermudagrass to improve the water and fertilizer retention capacity of the soil. However, due to the lack of suitable grasses or suitable planting techniques for the Camellia oleifera forest in the red soil area in the south, the effect is poor. Contents of the invention [0003] The purpose of the present invention is to overcome the defect that exists in the prior art, provide...

AI Technical Summary

Problems solved by technology

[0002] At present, due to the unscientific mechanized full reclamation or land preparation with reclamation in the early stage, the new Camellia oleifera afforestation base has problems such as bare surface, serious soil erosion, serious damage to the topsoil layer, and poor water and fertilizer retention capacity.

At present, there have been attempts to improve the soil by planting ryegrass, bermudagrass and other technologies in production to improve the water and fertilizer retention capacity of the soil, but the effect is poor due to the lack of grasses or suitable planting techniques suitable for Camellia oleifera forest land in the southern red soil area.