Special slow release composite fertilizer for red jujubes and preparation method of special slow release composite fertilizer

Abstract

The invention provides special slow release composite fertilizer for red jujubes. The special slow release composite fertilizer consists of the following raw material components in parts by weight: 40-50 parts of edible mushroom slag, 20-30 parts of saw dust, 20-30 parts of rice husks, 8-10 parts of bone powder, 50-60 parts of pig manure, 20-25 parts of vermiculite powder, 5-10 parts of sodium lignosulphonate, 18-20 parts of monoammonium phosphate, 20-30 parts of superphosphate, 10-15 parts of potassium chloride, 20-25 parts of urea, 1-2 parts of zinc sulfate, 1-2 parts of potassium borate, 2-3 parts of ferric sulfate, 0.2-0.4 part of manganese sulfate, 0.5-1.0 part of trichloroisocyanuric acid, 5-8 parts of PPGGE, 5-8 parts of crylic acid, 10-15 parts of polypropylene glycol, 0.1-0.4 part of ammonium persulphate, 4-6 parts of hydroxypropyl chitosan and 10-15 parts of a fertilizer additive. According to the special slow release composite fertilizer for the red jujubes, by the combination of organic and inorganic matters, the soil fertility is improved; by virtue of the added vermiculite powder, heavy metal ions in soil can be effectively absorbed, the yield is increased, and the red jujube quality is improved.

Description

technical field [0001] The invention relates to the field of agricultural fertilizers, in particular to a special slow-release compound fertilizer for red dates and a preparation method thereof. Background technique [0002] Jujube is rich in nutrition, and it has been a good nutritional product for people to nourish since ancient times. Jujube has a long history of cultivation in my country. Reasonable fertilization is an important factor to increase jujube yield and improve jujube quality. At present, jujube trees are fertilized with urea, phosphate fertilizer and quick-acting compound fertilizer in addition to some organic fertilizers such as ring fertilizer and soil miscellaneous fertilizer. Fruit growers usually apply several kinds of chemical fertilizers randomly based on experience, and they cannot apply fertilizers scientifically. The ratio of nitrogen, phosphorus and potassium is out of balance, resulting in leggy jujube branches, low fruit setting rate, and serio...

AI Technical Summary

Problems solved by technology

Fruit farmers usually apply several kinds of chemical fertilizers randomly based on experience, and they cannot apply fertilizers scientifically. The ratio of nitrogen, phosphorus and potassium is out of balance, resulting in leggy branches of jujube trees, low fruit setting rate, and serious pests and diseases. Short, in the annual growth cycle of jujube trees, multiple fertilizations are needed to meet their nutritional needs, resulting in serious waste of fertilizers. The invention provides a special slow-release compound fertilizer for jujubes. Release, slow release of fertilizer effect

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