Preparation method of environment-friendly fertilizer for seedling planting

Abstract

A preparation method of environment-friendly fertilizer for seedling planting comprises steps as follows: 1, fly ash and crop straw are mixed and put into a fermentation tank to be subjected to wet composting fermentation, fermented materials are taken out and dried after fermentation and then mixed with monoammonium phosphate and potassium selenite, the mixture is granulated, and granules I are obtained; 2, cow dung, ammonium chloride, pea green manure, agricultural rare earth and plant ash are mixed uniformly, moisture and pH are adjusted, the mixture is sent into a high-temperature aerobic fermentation tank to be fermented, and ecologic organic fertilizer is obtained after fermentation; 3, rice husk is calcined, charcoal powder is obtained and soaked in water, moisture is removed, the ecologic organic fertilizer is added, humic acid and humic acid micro-fertilizer are added, the mixture is mixed uniformly, heated, cooled to the room temperature, filtered and dried, and a material I is obtained; 4, the granules I and the material I are mixed and mixed with a binding material, and the mixture is extruded and formed by a heat sealing machine. The fertilizer can better retard loss of moisture in seedlings, keep the seedlings in better growth vigor and increase the survival rate of the seedlings.

Description

technical field [0001] The invention belongs to the technical field of plant fertilizers, and in particular relates to a preparation method of an environment-friendly fertilizer for seedling planting. Background technique [0002] With the development of specialization, industrialization and scale of planting in our country, its requirements for fertilizers are constantly upgrading, while traditional fertilizers have restricted the sustainable development of planting industry due to their low nutrient utilization. The application of coated fertilizer is an effective way to solve this problem. However, at present, the coating materials of common coated fertilizers are mainly chemically synthesized non-degradable polymers, which are easily left in the soil and cause soil degradation and pollution. At the same time, the coating materials have a single function and usually only have slow and controlled release. The effect does not take into account the functions of water absorp...

AI Technical Summary

Problems solved by technology

They have made great progress in prolonging the fertilizer effect through the application of several coating materials, but they are still mainly composed of nitrogen, phosphorus, potassium and other large elements, which cannot well meet the needs of seedlings for medium and trace elements, and need to be supplemented separately. Increase the cost of fertilization, and at the same time, it is impossible to make corresponding adjustments to the physiological conditions of plants, soil quality and water source environment

Patent No. ZL200610161312.6 provides a special fertilizer applied on seedlings, which is characterized in that the special fertilizer is mixed with ammonium sulfate, monoammonium phosphate, superphosphate, potassium sulfate, sulfur, ferrous sulfate, and malathion according to the ratio. Evenly formed, although it has the effect of promoting roots, preventing diseases and insects, but because it is basically based on chemical fertilizers, the fertilizer effect time is short, the added value is low, and it needs to be applied multiple times, which is labor-intensive, time-consuming and laborious, and the cost of fertilization is high.