Method for changing mountainous area yellow soil dry land into paddy fields

Abstract

The invention provides a method for changing mountainous area yellow soil dry land into a paddy field. The method includes the steps that the range of the to-be-transformed paddy field is determined, surface soil is stripped, a substrate is leveled, field ridges are built, surface soil backfilling is carried out, and the field surface is leveled; the field is soaked, and pulping is carried out; rice seedling transplanting and tillage are carried out, and the field is subjected to rice seedling transplanting and daily management through a traditional mode. By means of the method, modern tillage is combined with a traditional cultivation technology so that fractures can be quickly plugged, water storage of the newly-built paddy field can be promoted, the problem that water storage is slow in a conventional method for changing dry land into paddy fields is solved, a high-quality plough bottom layer can be formed by the newly-built paddy field, forward succession of the newly-built paddy field is facilitated, and field weed root systems can be removed, so that the field surface becomes very smooth, and the later-period management of rice planting is facilitated. More importantly, the method can be used for overcoming the defect of soil puddling of the newly-built paddy field and effectively preventing stiff rice seedlings.

Description

technical field [0001] The invention relates to paddy field reclamation technology, in particular to a method for transforming dry land into paddy fields in mountainous yellow soil areas. Background technique [0002] With the continuous development of the economy and society and the gradual expansion of the city scale, a large number of good fields and good soil have been expropriated into urban construction land. Policy requirements to ensure the red line of 1.8 billion mu of arable land and national food security, some areas are implementing the relevant policies of changing dry land to paddy fields. The mountainous yellow soil area is mainly distributed in the mid-subtropical humid area. The soil is yellow and rich in hydrated iron oxide. The mountainous yellow soil area where the platform slope is small (the slope is less than 15°) should be comprehensively controlled by mountains, water, and fields. The basic construction of farmland as the center. The invention main...

AI Technical Summary

Problems solved by technology

However, the conventional method of converting dry land to paddy fields and its key technical points are not applicable to the conversion of dry land to paddy fields in mountainous yellow soil regions.

In addition, in terms of conversion of dry land to paddy fields, the water retention rate of newly converted paddy fields has been very low in the first year (usually only 35-50%)

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