Soilless rice seedling raising method and application

Abstract

The invention belongs to the field of rice machine transplanting seedling raising technologies and relates to a soilless rice seedling raising method and application. The soilless rice seedling raising method comprises the following steps: preparing a seedling bed; preparing a seedling raising medium; sowing seed rice; coating a film; managing seedlings; and drawing and transporting the seedlings. Rice husk and nonwovens are used as water volume seedling raising media, a water planting nutrient solution is applied to seedling cultivation, the fertilizer utilization efficiency is greatly increased, the seedlings grow strongly, and the elasticity is relatively great. The length of raised seedling volume reaches 3-6m, the weight is only 1 / 5 of that of a conventional seedling block, and the investment of manpower and machines in the seedling block carrying process is reduced. Meanwhile, the number of halt and seedling supplement of a rice transplanter is effectively reduced so that the farming machine transplanting efficiency is greatly improved in the machine transplanting farming process as the seedling volume is 3-6m. The soilless rice seedling cultivation method is simple and convenient to operate, labor-saving and time-saving. By utilizing the soilless rice seedling raising method, industrialized, intensive and large-scale seedling raising is easy to realize.

Description

technical field [0001] The invention belongs to the technical field of rice seedling raising by machine transplanting, and relates to a soilless seedling raising method and application of rice. Background technique [0002] Rice is one of the most important food crops in the world, and more than half of the world's population uses rice as a staple food. China is the largest rice producer and consumer in the world, with a large sown area of ​​rice, ranking second in the world's rice planting, and its total output ranks first in the world. In recent years, due to the acceleration of China's urbanization process and industrial restructuring, rice production has rapidly shifted to mechanized seedling cultivation and transplanting. [0003] The application of mechanized rice transplanting technology is mainly affected by two factors, one is the performance and operation of the rice transplanter, and the other is suitable for the cultivation of rice machine-transplanted strong se...

AI Technical Summary

Problems solved by technology

[0005] However, the current rice seedling raising methods use soil or a new type of substrate as the seedling raising medium to rely on the seedling trays for seedling raising, and the specifications of the traditional seedling raising trays are all 0.03m×0.28m×0.58m in height*width*length. Potential problems are mainly manifested as: (1) the seedling trays with soil have a mass of about 6kg, even if the new seedling raising substrate also has 4-5kg, the preparation of seedling soil is time-consuming and labor-intensive; (2) the number of seedling trays per unit area is large, from From sowing to planting, it is necessary to move the seedling tray many times. The larger the farm, the more labor it takes to move it; (3) The transplanter has to stop constantly to replenish the seedlings, and the work efficiency is low; (4) The utilization rate of traditional soil seedling fertilizer Low, the workload of bed soil cultivation and fertilizer is large, and the elasticity of seedling age is small

(5) Due to the small amount of hybrid rice seeds, the seeding amount in the seedling field is correspondingly reduced, which affects the quality and final yield of machine transplanting in the field

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