Method for pretreating planting field of citrus orchard changed from rice field

Abstract

The invention provides a method for pretreating a planting field of a citrus orchard changed from a rice field, and relates to the technical field of planting. The method includes: (1) treating weedsin a planting field; (2) burying earthworm breeding frames; (3) sowing green manure; (4) utilizing and the green manure. The method for pretreating the planting field of the citrus orchard changed from the rice field has the advantages that by burying the earthworm breeding frames in the planting field, a mechanical crushing manner is replaced, earthworms in the earthworm breeding frames are facilitated to get out of loose soil, and labor force is saved; by adopting green manure sowing to replace manure application, soil in the citrus orchard can be improved, organic content of the soil can beincreased, soil fertility can be fertilized, a natural manure supplying capability of the soil can be improved, and stable improvement of quality of citrus fruits can be facilitated.

Description

[0001] 【Technical field】 [0002] The invention relates to the field of planting technology, in particular to a planting site pretreatment method for converting rice fields into citrus orchards. [0003] 【Background technique】 [0004] Paddy soil is an artificial soil formed by long-term hydroponic cultivation. Due to periodic oxidation-reduction alternation and leaching deposition, several new occurrence layers can be formed on the basis of the original parent soil, including the topsoil layer (cultivated layer) and the plow bottom layer. , redox layer (bleaching layer, retention layer, dehydration layer, latent layer, etc.), parent material layer, etc. Due to the need for a certain water layer during the growth of rice, the plow layer in the soil profile is compact, sticky and dense, and is formed by long-term hydroponic irrigation. [0005] The citrus industry has become the main source of rural economy in many places, and the intensification of citrus orchards has been inc...

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.

[0006] 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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