Burn-free slow-release fertilizer for trees

Abstract

The invention discloses a burn-free slow-release fertilizer for trees. The burn-free slow-release fertilizer is prepared from the following raw materials in parts by weight: 7-9 parts of urea formaldehyde nitrogen, 33-36 parts of wormcast, 5-6 parts of ammonium molybdate, 4-5 parts of calcium ammonium nitrate, 2-3 parts of alginic acid, 35-36 parts of rice straw, 24-25 parts of peat soil, 9-11 parts of sheep bone meal, 22-24 parts of fresh green tea leaves, 0.6-0.8 part of ascorbic acid vitamin C, 0.9-1.1 parts of acetic anhydride, 0.2-0.3 part of 4-dimethylamino pyridine and a proper amount of water. By adopting the burn-free slow-release fertilizer disclosed by the invention, large-quantity addition of quick-acting nutrient components in a conventional fertilizer is avoided, instead nutrient elements such as organic matters, chelated states and slow-dissolved salts are added, moreover the nutrient components are slowly released for a long time, then the nutrition can be gently absorbed for a long time, and thus the consequence that absorption is affected since tree roots are burnt when being in contact with a great amount of quick-acting nutrient components for a short time can be avoided.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a slow-release fertilizer for avoiding burning trees. Background technique [0002] With the increasing level of modernization of agriculture, coated slow-release fertilizers are widely used because of their remarkable high fertilizer efficiency. However, most of the slow-release fertilizers currently on the market are facing many problems. First, a large amount of greenhouse gases are likely to be generated during the preparation process, and are discharged into the atmosphere without control, causing air pollution; second, the coating materials are chemically synthesized. These non-degradable high-molecular polymers, these refractory polymer coating materials are very easy to remain in agricultural soil, causing soil degradation and serious pollution; third, fertilizers are bulky and inconvenient to transport and store; fourth, for special soil environments such as Acid-ba...

AI Technical Summary

Problems solved by technology

However, most of the slow-release fertilizers currently on the market are facing many problems. First, a large amount of greenhouse gases are likely to be generated during the preparation process, and are discharged into the atmosphere without control, causing air pollution; second, the coating materials are chemically synthesized. These non-degradable high-molecular polymers, these refractory polymer coating materials are very easy to remain in agricultural soil, causing soil degradation and serious pollution; third, fertilizers are bulky and inconvenient to transport and store; fourth, for special soil environments such as Acid-base, drought-humidity, soil lacking some elements, and nutrient requirements of specific crops are not effectively targeted