Coated slow-released plant growth regulator as well as preparation method and application of coated slow-released plant growth regulator

Abstract

The invention discloses a coated slow-released plant growth regulator as well as a preparation method and application of the coated slow-released plant growth regulator. The coated slow-released plant growth regulator comprises a coating film and a core layer, wherein the coating film is prepared from tung oil, bamboo charcoal and microcrystalline wax, which have low price, are easy to obtain, are environmental-friendly and are easy to degrade; the core layer is a plant growth regulator prepared by compounding 2,4-dichlorphenoxyacetic acid, sodium nitrophenolate, sodium naphthalene-1-acetate and indole-3-butyric acid potassium; the preparation method comprises the following steps: forming an inner-layer coating film on the surface of the plant growth regulator through the tung oil and the bamboo charcoal powder; covering the plant growth regulator, coated with the sprayed tung oil, through the bamboo charcoal powder and drying; then spraying the heated and melted microcrystalline wax on the surface of the inner-layer coating film to form an outer-layer coating film. The coated slow-released plant growth regulator disclosed by the invention is blended with water and diluted at a rooting period of wheat and then is sprayed on foliage for 2 to 3 times; the yield can be increased by about 25 percent and the coated slow-released plant growth regulator has no bad influences on the quality of the wheat.

Description

technical field [0001] The invention belongs to the field of plant growth regulators, and relates to a coated slow-release plant growth regulator and its preparation method and application. Background technique [0002] Slow-release coating materials are divided into two categories: inorganic coating materials and organic polymer coating materials. They have slow-release properties, which can slow down the release rate of nutrients in the coating and prolong the release period. In view of the extensive use of common chemical fertilizers causing a series of adverse effects such as soil structure damage, groundwater pollution, and decline in the quality of agricultural products, coated slow-release fertilizers can reduce the use of chemical fertilizers, improve fertilizer nutrient utilization, and reduce environmental pollution caused by fertilizer loss , so it has been extensively studied and concerned by scholars around the world. However, there are few research reports on ...

AI Technical Summary

Problems solved by technology

[0004] In recent years, the output of plant growth regulators in my country has increased astonishingly. With its extensive use in agricultural production, there are two defects and deficiencies in the following aspects. One is that plant growth regulators, like other synthetic pesticides, have certain toxicity , although most of them belong to low-toxicity pesticides, but because there are no enzymes in plants to decompose plant growth regulators, their residual effect is longer, and improper use will also cause serious phytotoxicity and environmental pollution; the second is plant growth regulation The plant growth regulator has a significant and efficient regulating effect, and the use of a low concentration of plant growth regulators can play an important role in regulating plant growth, development and metabolism. The extensive use of plant growth regulators, in addition to causing various drugs on plants Harmful performance, may also remain in the soil, forming soil pollution