Three-resistant compound microbial fertilizer and preparation method thereof

Abstract

The invention belongs to the field of fertilizer, and particularly relates to a three-resistant compound microbial fertilizer and a preparation method thereof. The three-resistant compound microbial fertilizer is prepared from plenty, medium and trace elements nitrogen, phosphorus, potassium, compound fertilizer, paraffin, associated nitrogen fixing bacteria, phosphorus solubilizing bacteria, potassium solubilizing bacteria and bacillus such as brevibacillus laterosporus, bacillus cereus, bacillus subtilis and bacillus licheniformis by compounding. The molten liquid paraffin is used for enveloping, and the molten paraffin doped with complex microbial inoculants is used for secondary enveloping. In the invention, live microbial products are added into the conventional compound fertilizer and provide direct or indirect nutrient elements to the plants through the movement of the microbial inoculants, while improving the soil fertility, activating the soil, enhancing the stress resistance of the crops, and solving the problems of soil fertility reduction, soil hardening, nutrient unbalance and lack of stress resistance of the crops; moreover, the invention has long period of validity, resists high temperature, acid-base and dryness, is nontoxic and harmless to people and livestock, and can prevent and control pests, deal with the pieces of paddy field without lodging and obviously increase the yield.

Description

Technical field: [0001] The invention belongs to the field of fertilizers, and in particular relates to a three-resistant microbial compound bacterial fertilizer and a preparation method thereof. Background technique: [0002] At present, the use of chemical fertilizers in China is relatively large. Although the per unit area yield of grain has also been improved by increasing the amount of chemical fertilizers used in agriculture, but at the same time as the high yield, the low utilization rate of chemical fertilizers, environmental pollution, and soil compaction are worrying. The problem is that the volatilization and leaching of effective nutrients reduces the utilization rate of fertilizers, which not only causes a serious waste of resources, but also causes certain pollution to the ecological environment of soil and water systems. At the same time, the single use of chemical fertilizers also virtually reduces the yield of agricultural products. quality, a threat to huma...

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Problems solved by technology

[0002] At present, the use of chemical fertilizers in China is relatively large. Although the per unit area yield of grain has also been improved by increasing the amount of chemical fertilizers used in agriculture, but at the same time as the high yield, the low utilization rate of chemical fertilizers, environmental pollution, and soil compaction are worrying. The problem is that the volatilization and leaching of effective nutrients reduces the utilization rate of fertilizers, which not only causes a serious waste of resources, but also causes certain pollution to the ecological environment of soil and water systems. At the same time, the single use of chemical fertilizers also virtually reduces the yield of agricultural products. quality, a threat to human life and health;

[0003] With the continuous improvement of agricultural production and multiple cropping index, coupled with years of only paying attention to nitrogen, phosphorus, and potassium, the use of soil fertilizer is insufficient, and the habit of using microbial fertilizer and organic fertilizer is ignored, and the organic matter and beneficial bacteria in the soil are getting less and less. It leads to the decline of soil fertility, soil compaction, nutrient imbalance, and the emergence of stress resistance of crops, which restricts the increase of crop yield and the exertion of fertilizer efficiency. The phenomenon of high input and low output has appeared in planting, which has brought certain economic losses. A survey was conducted, and there are common problems such as soil compaction, low fertilizer efficiency, and insufficient nutrient utilization, and the stress resistance of crops has become a factor that limits crop production and a bottleneck for crop benefits; due to the nature of fertilizers and soil environmental conditions Low fertilizer utilization rate is a common problem in the use of chemical fertilizers. The seasonal utilization rate of chemical fertilizers is about 30%-35% for nitrogen, about 10%-20% for phosphorus, and about 30%-35% for potassium. Among them, the loss of nitrogen is particularly serious. Due to improper fertilization, eutrophication of surface water has occurred, the content of nitrate nitrogen in groundwater and vegetables has exceeded the standard, and the emission of nitrous oxide has increased. Environmental pollution and food safety problems, therefore, to improve fertilizer utilization, It is a common research and concern issue to give full play to the comprehensive effect of fertilizers and reduce environmental pollution. The research and development of new compound bacterial fertilizers has far-reaching significance

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