Fertilizer for sweet potatoes and preparation method of fertilizer

Abstract

The invention belongs to the technical field of fertilizer, and particularly discloses a fertilizer for sweet potatoes and a preparation method of the fertilizer. The fertilizer for the sweet potatoes is mainly prepared from 40-50 parts of turf, 30-40 parts of sugar cane bagasse, 10-20 parts of biochar, 10-20 parts of potassium fulvic acid, 10-15 kaolin, 5-15 parts of urea, 1-3 parts of mannitol, 0.3-0.7 part of sodium molybdate and 1-3 parts of compound strains through mixed fermentation and granulation, wherein the compound strains contain bacillus mucilaginosus, pseudomonas alealigenes, rhizobia and sterptomyces kasugaensis. The fertilizer for the sweet potatoes has the advantages of being long acting, capable of increasing the yield and free of residue and pollution, the preparation method is simple, implementation is easy, the cost is low, and a good application and popularization prospect is achieved.

Description

【Technical field】 [0001] The invention relates to the technical field of fertilizers, in particular to a sweet potato fertilizer and a preparation method thereof. 【Background technique】 [0002] In current agricultural production, inorganic fertilizers occupy most of the market. However, inorganic fertilizers have great deficiencies and defects, which are mainly manifested in the following aspects: [0003] 1. Destroy the soil, resulting in a decrease in soil organic matter content, an imbalance in the proportion of various nutrients, soil acidification and compaction, and serious damage to the physical and chemical properties of the soil and soil microbial flora, resulting in poor water retention, fertilizer retention and air permeability, and it is difficult to meet the needs of crops. actual growth needs; [0004] 2. Crops are highly dependent on chemical fertilizers and pesticides, and the amount of use must be increased year by year, otherwise the crops will grow slowl...

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Problems solved by technology

[0003] 1. Destroy the soil, resulting in a decrease in soil organic matter content, an imbalance in the proportion of various nutrients, soil acidification and compaction, and serious damage to the physical and chemical properties of the soil and soil microbial flora, resulting in poor water retention, fertilizer retention and air permeability, and it is difficult to meet the needs of crops. actual growth needs;

[0004] 2. Crops are highly dependent on chemical fertilizers and pesticides, and the amount of use must be increased year by year, otherwise the crops will grow slowly, and the diseases and pests will be serious, resulting in reduced production;

[0005] 3. The agricultural ecological environment deteriorates. After chemical fertilizers are applied to farmland, the actual utilization rate is only 30%. Most of them flow into rivers and lakes with farmland drainage or remain in soil and crops, which not only brings environmental pollution but also endangers the safety and health of human life. These will become obstacles to the sustainable development of agriculture

At present, the fertilizers used in sweet potato cultivation are generally inorganic fertilizers, which are extremely beneficial to the sustainable development of agriculture and human health. Therefore, we need a sweet potato fertilizer that can increase production for a long time without residue and pollution

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