Novel fertilizer for restoring soil

Abstract

The invention relates to the technical field of fertilizers, and particularly relates to a novel fertilizer for restoring soil. The novel fertilizer is prepared from the following raw materials in parts by weight: 20 to 40 parts of urea, 15 to 19 parts of urea phosphate, 20 to 25 parts calcium phosphate, 20 to 30 parts of potassium sulfate, 12 to 16 parts of potassium chloride, 12 to 18 parts of sodium carbonate, 6 to 9 parts of magnesium sulfate, 16 to 19 parts of sodium humate, 15 to 20 parts of traditional Chinese medicinal residue, 8 to 12 parts of livestock manure, 25 to 30 parts of biogas residue, 8 to 12 parts of tea seed shell, 10 to 15 parts of blast-furnace coal slag, 20 to 30 parts of plant extracting solution, 25 to 35 parts of heavy metal enriching agent, 18 to 24 parts of modified red mud, 15 to 20 parts of modified bagasse and 12 to 18 parts of modified vinasse. The fertilizer is rich in nutrients, has the total nutrient, which is not less than 65.3 percent, of nitrogen, phosphorus and potassium, and is enriched in multiple nutrient elements; the novel fertilizer has a removal rate, which reaches 91.6 percent or above, for benzanthracene in soil; the novel fertilizer has a removal rate, which reaches 92.4 percent or above, for dioxin in the soil; the conversion ratio of converting an effective heavy metal into an ineffective heavy metal is used as an evaluation index for the restoration of a heavy metal in the soil; the novel fertilizer has a conversion ratio, which reaches 92.5 percent or above, for cobalt in the soil; the novel fertilizer has a conversion ratio, which reaches 92.4 percent or above, for nickel in the soil.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a novel fertilizer for soil restoration. Background technique [0002] With the rapid development of the economy and the advancement of industrial technology, the rapid development of modern industry and agriculture, the extensive application of chemical fertilizers and pesticides, the exploitation of mines and oil fields, and the discharge of petrochemical, pesticide and pharmaceutical production enterprises have led to the continuous deterioration of soil pollution. Among them, the pollution of soil organic matter and heavy metals has become a prominent environmental problem that cannot be ignored. Most of the soil organic pollutants are volatile and semi-volatile compound pollutants. The absorption and enrichment of metals pose a risk of serious damage to the human body. These pollutants are continuously migrated and transformed in the soil. They can enter the food chain t...

AI Technical Summary

Problems solved by technology

Among them, the pollution of soil organic matter and heavy metals has become a prominent environmental problem that cannot be ignored. Most of the soil organic pollutants are volatile and semi-volatile compound pollutants. The absorption and enrichment of metals pose a risk of serious damage to the human body. These pollutants are continuously migrated and transformed in the soil. They can enter the food chain through agricultural production and enter the human body through breathing. At the same time, they will also affect surface water and Groundwater causes pollution, endangering human health, and the current soil pollution source is no longer the traditional single pollution source. When multiple pollution sources pollute the soil at the same time, it is difficult to ensure the availability of soil and crops by using traditional restoration methods. Food safety, therefore, it is necessary to conduct research on the multi-pollution sources of soil and the status quo of variable pollution, so that soil pollution can be comprehensively treated. For agricultural planting, improving soil through fertilization has become one of the important means of controlling soil pollution. In the process of planting, it is one of the main measures taken to control soil pollution. Therefore, in the pursuit of pollution-free, safe and hygienic green food, and advocating a green and environmentally friendly development model, research and development of a low-cost and controllable restoration , A new type of farmland fertilizer that is in line with environmentally friendly development, can effectively alleviate soil pollution, and does not produce new pollution. It can not only increase crop production, but also effectively repair soil pollution and ensure the food safety of crops. It is important for China's agricultural development and fertilizers The field has important significance and urgency, and it is also of great significance to agricultural planting and environmental protection

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