Dry direct-seeding cultivation technique for rice

Abstract

The invention relates to a dry direct-seeding cultivation technique for rice. The technique comprises the steps of fine soil preparation, variety selection, application of enough base fertilizer, rotary tillage and sowing, chemical weeding, water management, nutrition management, pest and disease control and treatment and the like. By the adoption of the dry direct-seeding cultivation technique, on the basis of current rice transplanting techniques or water direct-seeding techniques, a lot of manpower can be saved, at the same time, the purpose of direct seeding in some fields which are not suitable for sowing rice in a direct seeding mode can be achieved, and the technique has the advantages that the labor and manpower are saved, the yield is high, and the large-scale production is achieved.

Description

technical field [0001] The invention relates to a paddy rice cultivation technique, in particular to a paddy dry direct seeding cultivation technique. Background technique [0002] Excessive water consumption is an important problem in rice production in my country. 95% of the rice planting area in my country is irrigated rice, and the water consumption for rice irrigation accounts for about 50% of the agricultural water use. Excessive water consumption in rice production leads to extreme shortage of water resources and low water use efficiency. In the past 10 years, the average annual agricultural irrigation water shortage is 30 billion m3, and the annual drought-affected area is 20-26 million hm2. Even in the south with abundant water resources, 1.6-2 million hm2 of rice production is severely reduced each year due to seasonal drought. According to estimates, the utilization coefficient of irrigation water in China is only about 0.5, and the rice produced by 1 cubic mete...

AI Technical Summary

Problems solved by technology

[0004] In order to achieve the above object, the present invention provides a kind of dry direct seeding cultivation technology of rice. By selecting excellent and suitable varieties, rational and scientific farmland management scheme and weeding technology, the dry land direct seeding technology of rice can be directly realized, and the yield and weeding etc. are improved. It has obvious advantages, and solves the problems that the existing rice transplanting technology consumes a lot of manpower and some fields are not suitable for water direct seeding