Drying method of cupulate compartment tray of paddy plant materials with steam auxiliary and hot air primary

Abstract

The rice seedling tray drying method with steam as the auxiliary and hot air as the main part belongs to the rice seedling tray preparation technology; the method includes: drying the seedling tray in a natural environment, and drying the seedling tray under different temperature, humidity and time conditions in a drying device. After several times of continuous drying with hot air and steam as the drying source, it enters the post-processing stage to obtain rice planting pot seedling trays that meet the needs of seedling raising, transplanting and seedling growth; High disk rate, good dry and wet strength, good chemical stability.

Description

technical field [0001] The invention belongs to the preparation technology of rice seedling raising trays, and mainly relates to a drying method for rice planting bowl seedling raising trays. Background technique [0002] The rice planting pot and seedling tray is prepared by mixing and stirring rice straw powder, water-soluble bio-glue, micro-fertilizer nutrient medium soil, nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer, fungicide and acid regulator, hot pressing, drying and shaping. Seedling trays can be planted in paddy fields together with rice seedlings and pots, and can be degraded in paddy fields. After rice seedlings are transplanted, there is no slow seedling period in paddy fields. It has rich nutrition, fertile soil, and reduces production and manufacturing costs and increase rice yield. In the production of seedling trays, drying and shaping is the key link in the production of seedling trays, and the drying method has a great impact on the q...

AI Technical Summary

Problems solved by technology

The study found that during the seedling raising process of the naturally dry seedling tray, white derivatives similar to bacteria grew on the outside of the seedling tray, and putrefaction bacteria appeared inside, causing the added rice straw to rot and deteriorate, and the rice seedlings turned yellow and the plants were short during the growth process. And other morbid characteristics, when the machine is used for transplanting, the mechanical strength of the seedling plate is not enough, it is often broken, resulting in irregular and missed transplanting, which seriously affects the quality and efficiency of transplanting.

Using a single hot air drying seedling tray at a certain temperature, although the above defects disappear, the drying effect is not ideal. Some seedling trays have defects such as cracking, warping and deformation, and a small number of seedling trays have uneven drying. and other phenomena seriously affect the production quality of seedling trays and the requirements of mechanized rice transplanting

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