Method for producing rice seedling tray via straw degradation

Abstract

The invention relates to a straw-derived naturally-degradable rice seedling tray and a production method thereof; the straw-derived naturally-degradable rice seedling tray is produced from, by weight, 30-60 parts of plant straws, 30-60 parts of farm manure having a water content of less than 20%, 3-8 parts of water, 3-8 parts of mineral powder, and 10-40 parts of black soil; the mineral powder comprises, by weight, 80-89% of SiO2, 0.1-0.3% of TiO2, 0.4-1% of K2O, 0.05-0.2% of Na, 0.007-0.009% of S, 0.4-0.8% of Fe2O3, 0.4-0.8% of Ca, 0.4-0.8% of Mg, and the balance of impurities. The straw-derived naturally-degradable rice seedling tray can degrade naturally so that environmental pollution is avoided; the straw-derived naturally-degradable rice seedling tray is produced mainly from crop straws, such as corn straw, and rice straw, the problem that traditional seedling raising selects the surface soil layer of a tillable land is solved, the utilization of the surface soil layer of a fertile farmland is greatly decreased, the tillable land can be protected, the seedling raising process is simplified, and working efficiency is improved.

Description

technical field [0001] The invention relates to a rice seedling raising tray, in particular to a method for producing a rice seedling raising tray by degrading straw. Background technique [0002] Nutrient soil is used to raise seedlings in rice production at present, and machine inserting trays and seedling throwing trays are all plastic products. On the one hand, plastic seedling trays are not easy to degrade and cause environmental pollution after use. On the other hand, plastic seedling trays require a lot of soil bedding and covering when raising seedlings. Calculated based on the area of ​​5 million mu of paddy fields in Heilongjiang Province, it needs to be dug out every year. The topsoil layer of 200,000 mu of fertile land. 2 billion pieces of plastic seedling trays are needed, and the national paddy field area is nearly 450 million mu. Every year, the topsoil layer of 1.6 million mu of fertile fields needs to be dug up, and 16 billion pieces of plastic seedling tra...

AI Technical Summary

Problems solved by technology

Furthermore, in the production of rice seedlings, there are many complicated operating procedures such as nutrient soil prepa