A kind of planting land pretreatment method for changing rice field to citrus orchard

Abstract

The invention provides a method for pretreatment of a planting site for changing a paddy field into a citrus orchard, and relates to the technical field of planting. The method comprises the following steps: (1) treatment of weeds in the planting site, (2) burying in an earthworm breeding rack, and (3) sowing Green manure and (4) utilization of green manure; the present invention adopts the method of burying earthworm breeding racks in the planting ground instead of mechanical crushing, prompts the earthworms in the breeding racks to drill out loose soil, saves labor, and adopts planting green manure instead of fertilization, so that the The soil has been improved, which can increase the content of soil organic matter, cultivate soil fertility, improve the natural fertilizer supply capacity of the soil, and promote the steady improvement of the quality of citrus.

Description

【Technical field】 [0001] The invention relates to the technical field of planting, in particular to a method for pretreatment of planting grounds in which paddy fields are changed to citrus orchards. 【Background technique】 [0002] Paddy soil is an artificial soil formed by long-term hydroponics. Due to periodic redox alternation and leaching deposition, several new generation layers can be formed on the basis of the original parent soil, including topsoil layer (tillage layer), plow bottom layer. , redox layer (bleaching layer, reservoir layer, desubscription layer, incubation layer, etc.), parent material layer, etc. Due to the need for a certain water layer during the growth of rice, the plow bottom in the soil profile is compact, heavy and dense, and is formed by long-term hydroponic irrigation. [0003] The citrus industry has become the main source of rural economy in many places, and the degree of intensification of citrus orchards has been increasingly strengthened....

AI Technical Summary

Problems solved by technology

When the paddy field is converted into a citrus orchard, because the rice field has been flooded for years, the plow bottom is hard and water-retaining, and the plow bottom must be broken when the garden is built; the plow bottom has good water retention performance, which plays a good role in rice growth and water management; Rooted citrus is very unfavorable. First, it is difficult for the root system to break through the bottom of the plow and then pierce down; second, it is easy to accumulate water and cause waterlogging damage, causing the root system to rot, and then the tree will decline. The leaves begin to spread upward and fall off, forming dead branches. The leaves of the flooded citrus trees curl and fall off, and the branches die. In severe cases, the leaves hang on the tree and the whole plant dies.

[0004] Most of the existing paddy fields are replanted with citrus in the following ways: 1. The method of excavating planting holes and directly planting citrus. The root system of citrus will not be limited in the original planting hole, and the layout of the site preparation structure is complicated; 2. Use mechanical crushing to loosen the soil, break the bottom of the plow, and improve the structure of the plow layer. Good, but mechanical subsoiling has problems such as large power consumption, high disturbance intensity to the soil, damage to the structure of the plow layer, and the plow bottom layer will be re-formed in the case of irrigation and other operations.

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