Polynary moisture and fertility preserving compound fertilizer and preparation method thereof

Abstract

The invention discloses a polynary moisture and fertility preserving compound fertilizer, which comprises the following raw materials in percentage by weight: 2-8 percent of polynary soil moisture and fertility preserving agent, 55-75 percent of bio-organic fertilizer, 8-30 parts of nitrogen fertilizer, 4-16 percent of phosphate fertilizer and 4-12 percent of potassium fertilizer. A preparation method of the compound fertilizer comprises the following steps of: fully mixing the nitrogen fertilizer, the phosphate fertilizer and the potassium fertilizer in a formula uniformly; adding the polynary soil moisture and fertility preserving agent into the mixed fertilizer for fully mixing; and adding the bio-organic fertilizer into the mixture and stirring fully. The polynary moisture and fertility preserving compound fertilizer has the advantages of polynary nutrition, simple preparation process, functions of saving the fertilizer and increasing fertility when used, moisture preserving function and capabilities of enhancing the qualities of crops and improving the physical and chemical properties of soil.

Description

technical field [0001] The invention relates to the field of chemical fertilizers used in agricultural and forestry production, in particular to a multi-component water- and fertilizer-retaining compound fertilizer and a preparation method thereof. Background technique [0002] Fertilizer is the food of plants, an extremely important means of agricultural production, and an important guarantee for the development of agricultural production and national food security. With the continuous development of my country's chemical fertilizer industry and agricultural production, the amount of fertilizer is increasing. Using a large amount of fertilizer will inevitably lead to excessive fertilization, weaken the production capacity of crops, aggravate environmental pollution, and waste a lot of scarce resources. At present, most of the fertilizers used in agriculture and forestry are simple fertilizers. Excessive application of such fertilizers for a long time will inevitably lead to...

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Problems solved by technology

With the continuous development of my country's chemical fertilizer industry and agricultural production, the amount of fertilizer is increasing, and a large amount of fertilizer will inevitably lead to excessive fertilization, weaken the production capacity of crops, aggravate environmental pollution, and waste a lot of scarce resources

At present, most of the fertilizers used in agriculture and forestry are simple fertilizers. Excessive application of such fertilizers for a long time will inevitably lead to excessive consumption of soil organic matter and an imbalance of various nutrients in the soil; excessive fertilization will also lead to damage to the farmland ecosystem. Decreased organic matter, reduced aggregate structure performance, intensified soil compaction, reduced fertilizer and water retention capacity, a large number of microorganisms died, soil microbial flora changed, many beneficial microorganisms changed from dominant populations to secondary populations, and crops were prone to various diseases. At the same time, the utilization rate of chemical fertilizers is low, and the quality of agricultural products declines.

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