Soil improvement method of water stain type basic lime soil rice field

Abstract

The invention discloses a soil improvement method of a water stain type basic lime soil rice field. The soil improvement method comprises the following steps: (1), at the time of rice field cuttage land preparation in the first year, uniformly spraying 50-100 kg of vinegar and 20-50 kg of bamboo vinegar to per mu of rice field, simultaneously applying 500 kg of humic fertilizer and 1500 kg of biological organic fertilizer, then plowing the rice field by adopting tractor plowing or traditional cow plowing, placing for 1-2 days and transplanting rice seedlings; (2), at the time of rice field cuttage land preparation in the second year, uniformly spraying 50-70 kg of vinegar and 20-30 kg of bamboo vinegar to per mu of rice field, simultaneously applying 500 kg of humic fertilizer and 1000 kg of biological organic fertilizer, then plowing the rice field by adopting tractor plowing or traditional cow plowing, placing for 1-2 days and transplanting rice seedlings; and (3), in the third year and the later years, uniformly spraying 30-50 kg of vinegar and 15-20 kg of bamboo vinegar to per mu of rice field, and simultaneously applying 500 kg of humic fertilizer and 1000 kg of biological organic fertilizer. According to the invention, by utilizing acidic vinegar, bamboo vinegar and humic fertilizer as well as the biological organic fertilizer with chelating action, the acidic substances and chelating components in soil are increased, and the pH value of the soil is restored to be neutral.

Description

technical field [0001] The invention relates to a method for comprehensively improving water-soaked paddy field alkaline soil by using vinegar, bamboo vinegar, humic acid fertilizer and bio-organic fertilizer during the conversion period of organic rice planting. Background technique [0002] Guilin is located in the subtropical zone, with a mild climate, abundant rainfall, sufficient sunlight, and the same season of rain and heat, which is suitable for rice planting; most of the city is composed of middle and low mountains and hills, and the local areas are river valleys and plains. Hills and plains have a wide source of soil parent materials, fertile soil, no heavy metal pollution, no pesticide residues, and good ecological environment, which is very suitable for organic rice cultivation. However, the karst in Guilin is developed, and the lime soil is developed in some areas, resulting in a pH of about 8.0 in the rice field. Soil improvement must be carried out to meet the...

AI Technical Summary

Problems solved by technology

In view of the fact that these rice fields are in an anaerobic state of waterlogging all year round, it is difficult to achieve soil improvement through biological acid production such as sulfur biooxidation and planting green manure, so acidic materials such as vinegar, bamboo vinegar, and humic acid fertilizers that meet the requirements of organic certification can only be directly used Improve soil with bio-organic fertilizer

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