Watermelon fertilizer capable of regulating soil pH and preparation method thereof

• Main Authors: YU JIAYONG, WANG CHENGGANG, YANG JIGUAN, LIAO HUADUN, DOU ZHANGSHENG, YANG JISHAN
• Format: Patent
• Language: Chinese; English
• Published: 28.09.2016
• 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 discloses a watermelon fertilizer capable of regulating soil pH. The watermelon fertilizer is prepared from the following raw materials in parts by weight: 200-210 parts of rice straw, 20-21 parts of kaolin, 10-11 parts of urea, 5-6 parts of attapulgite, 0.6-0.7 part of nitrohumic acid, 4-5 parts of bean dregs, 4-5 parts of castor cake, 0.8-0.9 part of potassium citrate, 15-16 parts of polyvinyl alcohol, 1-1.1 parts of tea polyphenol, 1-1.1 parts of carbon nanotube, 1.2-1.3 parts of beta-cyclodextrine and 800-810 parts of 28% ammonia water. The amino groups introduced into the biomass charcoal prepared from the rice straws can be chelated with heavy metals, thereby enhancing the capacity for adsorbing heavy metals, and reducing the pollution effect of heavy metals on the soil and environment. The carbon nanotubes added into the coating solution can enhance the mechanical strength of the film. The added tea polyphenols can enhance the slow-release property of the film. Besides, the added nitrohum