Organic slow-release fertilizer with function of improving soil, and preparation method of organic slow-release fertilizer

• Main Authors: DANG ZHAO, LIU YAN, ZHANG PENG, WANG ZONGBO, DING SHAOWU, GUO YUFENG, REN YI, WU BUHUA
• Format: Patent
• Language: Chinese; English
• Published: 24.07.2018
• Subjects: CHEMISTRY; FERTILISERS; FERTILISERS CHARACTERISED BY THEIR FORM; MANUFACTURE THEREOF; METALLURGY; MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS

The invention belongs to the field of processing and preparation of organic fertilizer, and in particular relates to organic slow-release fertilizer with a function of improving soil, and a preparation method of the organic slow-release fertilizer. The organic slow-release fertilizer is prepared from the following components: 20-40 parts of humic acid, 5-10 parts of algin, 15-25 parts of rice huskbiochar, 15-25 parts of urea, 8-10 parts of nitrogen fertilizer, 6-9 parts of potassium fertilizer, 8-12 parts of phosphorus fertilizer, 5-10 parts of hydrogel, 3-5 parts of nitrogen fixing agent, 3-5 parts of animal oil, 3-5 parts of adhesive and 10-15 parts of calcium polyaspartate. The organic slow-release fertilizer with the function of improving soil and the preparation method of the organicslow-release fertilizer utilize the characteristics of the humic acid, the algin, the rice husk biochar and the calcium polyaspartate to further effectively improve the soil, thus increasing the absorption efficiency of plant