Special fertilizer applied to large cherries and preparation method thereof

Abstract

The invention discloses a special fertilizer applied to large cherries and a preparation method thereof. The method comprises the following steps: weighing ethylenediamine tetraacetic acid, zinc sulfate powder, ferrous sulfate powder, borax powder, ammonium molybdate powder and water, mixing and stirring for 20-30 minutes at the temperature of 80-100 DEG C to prepare a microelement chelate fertilizer solution; weighing polyvinyl alcohol, polyaspartic acid, maize starch, dicyandiamide powder and water, mixing and stirring for 20-30 minutes at the temperature of 80-90 DEG C to prepare an adhesion solution for later use; uniformly mixing the prepared microelement chelate fertilizer solution with the adhesion solution according to a mass ratio of 1 to 4 for later use; weighing low-grade oil shale, furfural residue, magnesium sulfate, urea, diammonium hydrogen phosphate and potassium sulfate, drying, crushingscreening, sieving through a 80-100-mesh sieve, uniformly mixing, adding the obtained mixture into a pelletizer, spraying thea mixed solution and pelletizing to obtain the special fertilizer. The special fertilizer has the advantages including: that the nutrients are comprehensive,the growth requirements of the large cherries can be fully met, the yield and the quality of the large cherries are improved, and the sustained-release performance of the special fertilizer is excellent.

Description

technical field [0001] The invention belongs to the technical field of chemical fertilizers, and in particular relates to a special fertilizer for big cherries and a preparation method thereof. Background technique [0002] Big cherry (i.e. sweet cherry) is the earliest mature fruit among fruit trees in the north, known as "treasure among fruits" and "the first fresh fruit of primrose". In recent years, it has become more and more favored by consumers. Its fruit has become popular in the market and has become the first choice for the adjustment of fruit tree structure. There has been an upsurge in planting large cherries in coastal areas, and inland areas have also frequently introduced and tried planting. In northern China The planting area is increasing year by year, and it is a high-yield economic crop. Compared with other fruit trees, big cherry is a fast-growing fruit tree, which grows rapidly and has a large annual growth volume. The time for fertilizer needs is relat...

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