Dry rice-nursery method suitable for large-scale production

Abstract

The invention discloses a dry rice-nursery method suitable for large-scale production. An open-air cement drying field is selected as a seedbed, straw substrate produced by the company is used, the substrate is laid in a seedling tray, the traying thickness is 1-5 cm, redundant substrate in the seedling tray is removed, and the seedling tray substrate is scraped to be flat and then water is sprayed for wetting; well sown seeds are covered with the substrate and then no germination is required, and the seeds are directly moved to the cement drying field through a forklift for placement in the tray; and when seedling leaf age reaches about 2.5-4 leaves, the seedlings are taken for cutting. The cement drying field is taken as the seedbed without building a nursery greenhouse, no nutrient soilfor seedling culture is used, the straw substrate of the company is used to culture the seedlings, the destruction of soil resources is reduced, the investment is less, management is facilitated, theseedling culture time is short, pests and diseases are fewer, fertilizer is saved by 20%-50%, the seedlings are tidy and robust, the seeds are saved, the root system is developed, the crop maturity period is shortened, and the yield is high.

Description

technical field [0001] The invention belongs to the technical field of agricultural cultivation, and in particular relates to a dry seedling raising method suitable for large-scale production. Background technique [0002] Since the 1950s in my country, after the shift from direct seeding of rice to the method of raising seedlings and transplanting rice seedlings, the technology of rice seedlings has gone through stages such as water bed seedlings, wet seedlings, and dry seedlings. [0003] Waterbed seedling cultivation: The main features are water harrowing, water bed, water management, pulling out seedlings and transplanting, but the emergence rate is low, the time of sowing and transplanting is late, the quality of seedlings is weak, and the labor intensity is high. Only early-maturing varieties can be planted, and the yield is low. [0004] Wet seedling raising: Since the late 1960s, on the basis of water bed seedling raising, there has been an improved water bed seedlin...

AI Technical Summary

Problems solved by technology

[0008] In view of this, the present invention provides a method of dry seedling raising suitable for large-scale production, that is, a soilless dry seedling raising technology that uses straw substrates and an open-air cement drying field as a seedbed to adapt to large-scale industrial production, and solves the problem that the seedling bed must be selected for dry seedling raising. Fertile soil, deep soil layer, loose and air-permeable dryland soil is the seedbed problem; at the same time, it solves the problems of large investment, low equipment utilization rate, high technical difficulty and high operating cost in the current industrialized seedling raising