Slow-release fertilizer for roof greening

Abstract

The invention discloses a slow-release fertilizer for roof greening. The slow-release fertilizer is prepared from raw materials in parts by weight as follows: 18-20 parts of slag, 7-8 parts of palm wood dust, 25-26 parts of distillers' grains, 6-7 parts of sorghum ears, 3-4 parts of potassium pyrophosphate, 3-4 parts of diaminoferric xanthohumate, 38-40 parts of rice straw, 33-35 parts of soybean pulp, 26-28 parts of fresh green tea leaves, 5-7 parts of calcium nitrate, 0.4-0.5 parts of ascorbic acid vitamin C, 1.2-1.3 parts of acetic anhydride, 0.2-0.3 parts of 4-dimethylaminopyridine and a proper amount of water. The slow-release fertilizer is granular, the weight of the fertilizer is greatly reduced on the basis that the fertilizer efficiency lasts longer due to matching of the organic matter granules and modified rice straw powder envelops, the utilization rate of the fertilizer is increased, the fertilizer can be carried to a high building conveniently due to the fact that the fertilizer has the characteristics of light mass and small amount, and the fertilizer is suitable for being used for greening of high buildings, roofs and the like.

Description

technical field [0001] The invention relates to the technical field of fertilizers, in particular to a slow-release fertilizer for roof greening. 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-base, droug...

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