Planting pit soil improving method for fast ripening of soil in newly built citrus orchard in three gorges reservoir area

Abstract

The invention discloses a planting pit soil improving method for fast ripening of soil in a newly built citrus orchard in the three gorges reservoir area. The method comprises the first step of planning a planting pit; the second step of stripping surface soil with the area ranging from 8 m<2> to 10 m<2> and with the center of the planting pit as the original point, wherein the stripping thickness ranges from 18 cm to 22 cm, and the soil is stacked locally after stripping; the third step of digging the planting pit; the step of refilling the planting pit with the surface soil and carrying out improvement of soil fertility, wherein the refilling is carried out in three layers, the bottom layer is refilled with the mixture of coarse stuff and surface soil, the middle layer is refilled with the mixture of the fine stuff and surface soil, the surface layer is refilled with mixture of organic fertilizer and surface soil, the planting pit is filled with the refilling stuff, and the stacked refilling stuff is higher than the original ground by 0.1-0.2 m. According to the planting pit soil improving method, the soil improvement work amount accounts for 20-30 percent of the common soil improvement work amount, the soil improvement work amount and establishing cost are greatly reduced, and the planting pit soil improving method has good ecological benefits. The ripening time of soil in the citrus orchard is shortened, and the ripening time based on the method is only one month while the ripening time based on a traditional method is about half year.

Description

technical field [0001] The invention relates to soil maturation technology, in particular to a soil improvement method for quickly maturing the soil of newly-built citrus orchards in the Three Gorges reservoir area, and belongs to the field of soil improvement technology. [0002] Background technique [0003] The inundation of a large amount of high-quality agricultural land by the Three Gorges Project and the occupation of agricultural land by the relocation of cities and enterprises and the construction of supporting infrastructure in the later stage have exacerbated the already severe ecological environment and population carrying problems in the reservoir area. The high-quality citrus industry belt, as part of the characteristic industrial system of the industrial pattern of the Three Gorges reservoir area, is a key link to enrich the industrial hollow of the reservoir area. In order to meet the basic needs of life and the expectation of increasing income, residents in...

AI Technical Summary

Problems solved by technology

However, due to the harsh natural and ecological environment conditions in which most of the new citrus orchards are located (high altitude, steep slope, thin soil layer, high gravel content, and low organic matter content), the soil fertility and land productivity of the new citrus orchards are extremely low. The healthy development of the citrus industry in the reservoir area has been limited

[0004] At present, the soil improvement of new citrus orchards in the Three Gorges reservoir area is mostly carried out by complete blasting to build terraces. This method has disadvantages such as large amount of soil improvement projects and long soil maturation time.

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