Special fertilizer for apples and preparation method thereof

Abstract

The invention discloses special fertilizer for apples and a preparation method thereof. The preparation method comprises the following steps: weighing ethylenediamine tetraacetic acid (EDTA), zinc sulfate powder, ferrous sulfate powder, borax powder, ammonium molybdate and water and mixing; stirring for 20 to 30min at the temperature of 80 to 100 DEG C, so as to prepare a microelement chelating fertilizer solution; weighing polyvinyl alcohol, polyaspartic acid, corn starch, dicyandiamide and water and mixing; stirring for 20 to 30min at the temperature of 90 to 100 DEG C, so as to prepare a bonding solution; uniformly mixing the obtained microelement chelating fertilizer solution and the bonding solution according to the mass ratio of 1 to 4 for later use; weighing low-grade oil shale, furfural dreg, gypsum, magnesium sulfate, urea, diammonium phosphate and potassium sulfate respectively; after drying, crushing and sieving, uniformly mixing and adding into a granulation machine; spraying a mixed solution and granulating to prepare the special fertilizer for the apples. The special fertilizer for the apples has the advantages of comprehensive nutrients, capabilities of sufficientlymeeting the requirements of the growth of the apples and improving the yield and quality of the apples, good slow release performance and the like.

Description

technical field [0001] The invention belongs to the technical field of chemical fertilizers, and in particular relates to a special fertilizer for apples and a preparation method thereof. Background technique [0002] Apples belong to Rosaceae, perennial deciduous trees with deep roots and long lifespan. Usually, the trees can be up to 15 meters high, and the cultivated trees are generally about 3-5 meters high. The trunk is grayish brown, the leaves are oval and serrated; Crisp and sweet, with high nutritional value, according to measurements, every hectogram apple contains 6.5-11.5 grams of fructose, 2.5-3.5 grams of glucose, 1.0-5.2 grams of sucrose, and also contains trace elements zinc, calcium, phosphorus, iron, potassium and Nutrients such as vitamin B1, vitamin B2, vitamin C and carotene are the crown of the world's four major fruits (apple, grape, citrus and banana). [0003] Apple is one of the fruit tree species with the widest cultivation area, the largest outpu...

AI Technical Summary

Problems solved by technology

With the increasing shortage of oil, natural gas and other resources in the world, the development and utilization of kerogen shale is expanding day by day. The low-grade kerogen shale discharged from industry cannot be used for dry distillation with existing equipment because of its low oil content (less than 3-5%). The materials are piled up into mountains, occupying a large amount of land and seriously affecting the ecological environment

Oil shale contains organic matter, large amount, medium and trace elements necessary for plant growth and development. It is an ideal compound fertilizer additive. The compound fertilizer made by adding this material can increase fertilizer and water retention, promote soil microbial activity, and improve soil physical and chemical properties. and other characteristics, but have not been well utilized for a long time, resulting in a waste of resources