Drought-resistant and water-holding coated fertilizer for strawberry and preparation method thereof

Abstract

The invention discloses a drought-resistant and water-holding coated fertilizer for strawberry. The coated fertilizer is characterized by being prepared from the following raw materials in parts by weight: 34-38 parts of melia azedarach seeds, 30-35 parts of garlic bulb, 23-27 parts of urea, 16-22 parts of ammonium phosphate, 12-16 parts of potassium sulfate, 10-14 parts of humic acid, 1-2 parts of polyacrylamide, 15-19 parts of ligneous plant fiber, 13-17 parts of coconut shell plant fiber, 8-13 parts of paraffin, 6-13 parts of waterborne acrylic resin, 5-7 parts of nano-kaolin, 4-7 parts of nano-montmorillonite, 1-2 parts of tea saponin, 0.3-0.8 part of zinc borate, 5-7 parts of EM bactericide, 7-10 parts of soil improver and a proper amount of water. According to the fertilizer, the plant fibers have the effects of significantly improving the physicochemical properties of soil, reducing capacity, relieving the hardening condition of soil, improving the water holding capability of soil and the utilization rate of water and saving irrigation water; the nano powder and the humic acid have the effects of holding water and fertilizer, improving the drought resistance of crops and increasing the category and quantity of microbes in soil; the tea saponin has the effects of killing pests and bacteria and promoting the growth of crops, is biodegradable and does not pollute the soil; and a water absorbent added in a coating agent can absorb moisture during much rain and release moisture during drought, so that the irrigation frequency is reduced, the cost is reduced and the income of peasants is increased.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a drought-resistant and water-retaining coated fertilizer for strawberries and a preparation method thereof. Background technique [0002] Coated fertilizer is a kind of slow-release fertilizer made by coating other substances on the surface of fertilizer particles. The substances used for film formation include natural products and artificially synthesized polymers such as polyurethane, polyethylene, paraffin, and oil. , asphalt and sulfur, etc. After they form a film, they can reduce the direct contact between fertilizers and the outside world, control the release rate of nutrients in water-soluble fertilizer particles, and improve the physical and chemical properties of fertilizers. Basically, except for sulfur, most of the coating materials are non-plant nutrients, so the coating layer is not allowed to be too thick. But in order to form a complete sealing layer, it should not be ...

AI Technical Summary

Problems solved by technology

Strawberry likes water, but during the strawberry fruiting period, once the fruit touches water, it will easily cause rotten fruit, which will greatly reduce the yield. Therefore, we must be very careful in the later irrigation and fertilization, which is a delicate and time-consuming process. Work