Biodegradable seedling raising tray capable of containing micro-fertilizer suitable for mechanical transplanting and preparation method of seedling raising tray

Abstract

The invention provides a biodegradable seedling raising tray capable of containing a micro-fertilizer suitable for mechanical transplanting and a preparation method of the seedling raising tray. The biodegradable seedling raising tray capable of containing the micro-fertilizer is prepared from, by weight, 50-80 parts of full-biobased degradation resin, 10-40 parts of biobased filler and 0.5-5 parts of an assistant. The biodegradable seedling raising tray capable of containing the micro-fertilizer is further prepared from, by weight, 0.5-6 parts of the micro-fertilizer. The micro-fertilizer comprises one or more of iron, zinc, copper, manganese, boron, molybdenum and nickel. The preparation method of the biodegradable seedling raising tray capable of containing the micro-fertilizer comprises the following steps of mixing of raw materials, extrusion and granulation, preparation of a sheet and forming of the seedling raising tray. The biodegradable seedling raising tray capable of containing the micro-fertilizer suitable for mechanical transplanting and the preparation method of the seedling raising tray have the advantages that the biodegradable seedling raising tray is prepared by adding different kinds of microelements (the micro-fertilizer) into a degradable material, the effect of the micro-fertilizer application can be achieved, the micro-fertilizer is applied accurately anduniformly and released slowly, and poisoning caused by excessive application of the micro-fertilizer is avoided.

Description

technical field [0001] The invention relates to the field of agricultural seedling raising, and more particularly relates to a biodegradable seedling raising tray which can contain micro-fertilizer and a preparation method thereof, which is suitable for mechanical transplanting. Background technique [0002] Seedling transplanting is a planting method often used in agricultural production. Compared with direct seeding, seedling transplanting divides the growth cycle of crops into two stages: intensive seedling cultivation before transplanting and field growth after transplanting, which can prolong the growth period of crops. Therefore, it can realize increased production and increased income, which is very common in the production of rice, vegetables and other economic crops. [0003] Seedlings can be grown directly on the cultivated land, or seedlings can be raised in seedling containers, but through mechanical transplanting, it is necessary to cultivate group-shaped seedli...

AI Technical Summary

Problems solved by technology

The application of micro-fertilizers and how to be absorbed by plants is a difficult problem. Due to the small amount of micro-fertilizers, usually only tens of grams to several kilograms can be applied at a time, and it is difficult to achieve uniformity by single application

Micro-fertilizers usually have three forms: inorganic state, organic state and complex state. After a small amount of inorganic state micro-fertilizer products are applied to the soil, they are easily fixed by the soil, and the absorption effect of crops is poor. However, excessive fertilization can easily cause local nutrient element content in the soil. If it is too high, it will pollute the soil and water, and reduce the quality of crops; the cost of organic and complex micro-fertilizers is generally high, which limits the promotion and use of micro-fertilizers

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