Special-purpose slow release fertilizer for water-retention sprout-cultivation

Abstract

The invention discloses a special fertilizer with medical fertilizer slowly released and water conserved for seedlings growth which is characterized in that the fertilizer mainly consists of the following ingredients according to weight propotion: 5-10 percent of super-absorbent resin, 8-20 percent of nitrogen (N), 5-12 percent of phosphorus pentoxide (P2O5), 3-7 percent of potassium oxide (K2O), 1-3 percent of zinc (Zn), 1-3 percent of ferrite (Fe), 1-5 percent of ingredients of boron, magnesium, molybdenum, manganese and copper, 0.2-2 percent of pesticide, 0.1-2 percent of fungicide, 0.001-0.01 percent of root growth promoting agent and 0.001-0.01 percent of dwarfing agent and the rest is adsorbent. The special fertilizer with medical fertilizer slowly released and water conserved for seedlings growth of the invention has functions of good water holding and supplying, slow releasing of medical fertilizer, seedlings and roots strengthening, elements applying and growth promotion, diseases prevention, insect disinfesting and production increasing, and is characterized by less dosage, low cost and convenient application, etc., and can be applied to rice seedlings dry raising, seedling raising on plastic trays and upland crops raising.

Description

technical field [0001] The invention relates to the field of compound fertilizers, in particular to a slow-release, water-retaining and special seedling fertilizer for rice seedling raising, plastic tray seedling raising, and dryland crop seedling raising as a base fertilizer or when preparing nutrient soil. Background technique [0002] With the development of light rice cultivation such as dry-raised thin planting, dry-raised throwing seedlings, and mechanical transplanting, dry-land seedling raising and machine-inserted seedling raising methods are widely used, but these two seedling raising methods have the following technical difficulties: [0003] The technical difficulties of rice dry seedling cultivation are: first, the fertilization process is complicated; second, bakanae disease, blight and other diseases are prone to occur; third, the buffer range of soil water supply is small, which is easy to cause physiological dryness and dead seedlings. [0004] The technical...

AI Technical Summary

Problems solved by technology

[0006] 1. The above-mentioned products lack the function of water storage and water retention. In the case of seedling cultivation in dry land, the buffer range of soil water supply is small, and it is easy to cause physiological dryness and dead seedlings

[0007] 2. The above-mentioned products lack insecticidal function, and cannot control underground pests and seedling pests in drought-raised seedlings

[0008] 3. The content of zinc and iron in the above-mentioned products is insufficient, and most of the rice areas in my country have serious zinc and iron deficiency in the soil, resulting in red seedlings, yellow seedlings, stiff seedlings and dead seedlings

[0009] 4. The above-mentioned products lack root-promoting agents, which cannot effectively promote the development of the seedling root system, and solve the problem of reducing the seeding rate and enhancing the packing strength of machine-inserted seedlings, resulting in excessive seeding rate and low elasticity of seedling age

[0010] 5. The above products lack dwarfing agents, which cannot solve the problem of high seedling growth under the condition of long seedling age, and it is more prominent under high temperature and high humidity conditions

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