Novel autumn soil preparation method for cold paddy field

Abstract

The invention discloses a novel autumn soil preparation method for a cold paddy field. The method comprises the following steps: treating rice straws; fertilizing before soil preparation; irrigating and pulping; overwintering with saturated water. According to the soil preparation method disclosed by the invention, autumn soil preparation is adopted, water resources are rich, water contradiction in spring is relieved, whole grass straws are chopped and returned to the field in autumn, fertilization is performed in autumn, the fertilizer utilization rate is improved, and the fertilizing and fertilizing saving quantity can be saved by 20% as compared with that during spring soil preparation. Soil-borne fungal diseases and insect pests are further decreased, and the pesticide dose is greatlyreduced. The soil plough horizon is subjected to saturated water overwintering, and the weed killing aim is achieved. Compared with spring soil preparation, the novel autumn soil preparation method disclosed by the invention has the advantages that the invest capital is saved, production of high-quality green organic rice is facilitated, beneficial organisms such as fishes, frogs, bees and the like are protected, ideal ecological agriculture is really realized, and the quality and yield of the rice are improved. The novel autumn soil preparation method for the cold paddy field disclosed by theinvention is suitable for popularization and application in rice planting areas in northern cold zones.

Description

technical field [0001] The invention relates to the technical field of land preparation for agricultural production, in particular to a new method for land preparation of paddy fields in cold regions in autumn. Background technique [0002] At present, rice planting in the northern cold region has obvious advantages over other crops due to its economic benefits, so the planting area continues to expand, and the development of water conservancy projects lags behind. Water resources cannot be fully utilized and balanced. At present, paddy fields in cold regions mostly use autumn turning spring beating and spring turning spring beating, as well as land preparation methods such as spring stubble beating. These land preparation techniques have the following problems: First, due to the limitation of existing machinery, the amount of straw returned to the field is limited. The field volume is about 50%, and at the same time, a large number of pathogenic bacteria stored in the straw...

AI Technical Summary

Problems solved by technology

[0002] At present, rice planting in the northern cold region has obvious advantages over other crops due to its economic benefits, so the planting area continues to expand, and the development of water conservancy projects lags behind. Water resources cannot be fully utilized and balanced. At present, paddy fields in cold regions mostly use autumn turning spring beating and spring turning spring beating, as well as land preparation methods such as spring stubble beating. These land preparation techniques have the following problems: First, due to the limitation of existing machinery, the amount of straw returned to the field is limited. The field volume is about 50%, and at the same time, a large number of pathogenic bacteria stored in the straw overwinter; second, because a large number of grass seeds are dried in autumn and the water content is reduced to the minimum water content to survive the winter safely, it directly leads to serious weeds and insects in the second rice growing season. It is necessary to increase the use of pesticides, which does not meet the production requirements of modern agriculture’s two reductions (reduction of chemical fertilizers and pesticides). The high price of herbicides directly affects farmers’ increase in production and income, and does not meet the requirements of food security and environmental protection. Rice farmers We have always wanted to find a new land preparation method that can save costs and increase efficiency, and can improve paddy fields