Slow release compound fertilizer applicable to plantation of wheat

Abstract

The invention provides a slow release compound fertilizer applicable to plantation of wheat. The slow release compound fertilizer is a mixture of a plurality of fertilizers and components with no special fertilizer efficiency. The slow release compound fertilizer applicable to plantation of wheat uses compound fertilizer as the core of fertilizer and is prepared by filming and dusting powder processing; and the slow release compound fertilizer is prepared from the following raw materials by mass: 21 to 47 parts of urea, 8 to 15 parts of ammonium sulfate, 10 to 30 parts of potassium sulfate, 20 to 35 parts of a mixed phosphate fertilizer, 0.1 to 0.5 part of an iron, manganese, boron, copper, zinc and molybdenum additive, 6 to 12 parts of a granulating auxiliary agent and a proper amount of water. A preparation method for the slow release compound fertilizer comprises the following steps: (1) preparation of a compound of a potash fertilizer and a nitrogen fertilizer; (2) preparation of the mixed phosphate fertilizer; (3) preparation of mixed particles of the components of the compound fertilizer; (4) coating with stearic acid; (5) powder spreading of a modified zeolite powder material; and (6) screening, metering, quality inspection and packaging. The slow release compound fertilizer applicable to plantation of wheat provided by the invention has overall nutrients and excellent slow releasing performance, improves both output and quality of wheat, saves resources and protects the environment.

Description

technical field [0001] The invention is a slow-release compound fertilizer suitable for wheat planting and application. It is a mixture of various fertilizers and components without special fertilizer effects. Background technique [0002] Wheat is an important food crop and economic crop. According to statistics, its output and planting area are second only to rice, ranking second in the world. It plays an important role in people's livelihood and national economy. Effective use of limited land resources to improve the yield and quality of wheat crops is the direction and eternal subject of people's efforts. [0003] There are more than 20 kinds of nutrients that wheat needs to absorb for growth and development, mainly including nitrogen, phosphorus, and potassium, three major elements; sulfur, calcium, magnesium and other macroelements, as well as iron, manganese, boron, and copper. Trace elements such as zinc and molybdenum. These nutrients mainly come from fertilizer...

AI Technical Summary

Problems solved by technology

[0009] 1. Multi-layer coating, complex production process, large investment and high production cost

[0010] 2. The coating material is difficult to degrade, and long-term use will have a negative impact on the soil; even pollute the soil and affect the quality of agricultural products

[0011] 3. The ratio of the main nutrient elements in the fertilizer is not reasonable, and the utilization rate of the fertilizer is low

[0012] 4. Lack of necessary medium or trace elements, incomplete nutrition, affecting the improvement of yield and wheat quality

[0013] 4. The utilization rate of nitrogen fertilizer is low, wasting resources and polluting the environment

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