CN-122010648-A - Method for preparing efficient organic fertilizer based on mixed fermentation of sheep manure and fireholding plant ash

Abstract

The invention belongs to the technical field of agricultural organic waste resource utilization, and discloses a method for preparing a high-efficiency organic fertilizer based on mixed fermentation of sheep manure and fireholding plant ash. The method takes fresh or primarily dried and crushed sheep manure and plant ash which is just extinguished after full combustion of biomass and still keeps an active state of 40-80 ℃ waste heat as raw materials, the two materials are quickly and uniformly mixed, the water content of the materials is regulated to 50-60%, piles are built after adding a fermentation microbial inoculum, the pile body is controlled to ferment at the high temperature of 55-70 ℃ for 5-7 days, and ventilation aging is carried out for 1-2 weeks after cooling and decomposition, so that the efficient organic fertilizer is prepared. The invention utilizes the synergistic effect of the waste heat of the plant ash with strong alkalinity to realize quick disinsection and sterilization, neutralize organic acid and activate nutrient and improve the air permeability of the heap, obviously shortens the fermentation period, greatly improves the killing rate of the prepared organic fertilizer ovum by more than 99 percent, realizes the efficient recycling of agricultural wastes and meets the development requirement of green circulating agriculture.

Inventors

• BIAN WENJIE
• Yin le
• LIU FEI
• LIU ZHIYUAN
• WANG LI
• GAO PENG
• SHEN CHEN
• WANG JITAO
• ZHANG FUJIAN

Assignees

• 安徽中烟工业有限责任公司

Dates

Publication Date

20260512

Application Date

20260304

Claims (8)

1. 1. The method for preparing the efficient organic fertilizer based on the mixed fermentation of the sheep manure and the firefly ash is characterized by comprising the following steps of: (1) Raw material preparation, namely collecting fresh or primarily dried and crushed sheep manure and plant ash in a fire-holding state; (2) Uniformly mixing, namely quickly and uniformly mixing plant ash in a fire-holding state with sheep manure; (3) Adjusting and piling, namely adjusting the water content of the mixed material to 50% -60%, adding a fermentation inoculant, and piling to form a fermentation pile; (4) Controlling temperature for fermentation, namely controlling the temperature of the pile body to be within the range of 55-70 ℃ for 5-7 days, and then entering a cooling and decomposing stage until the temperature of the material tends to be ambient temperature, odorless and loose black brown; (5) And (5) after-ripening and aging, namely aging the fermented material to obtain the efficient organic fertilizer.
2. 2. The method of claim 1, wherein the on-fire plant ash is an active plant ash that extinguishes immediately after sufficient combustion of biomass fuel and retains 40 ℃ to 80 ℃ waste heat.
3. 3. The method according to claim 1, wherein the amount of plant ash in a fire sustaining state is 5-20% of the dry weight of sheep manure.
4. 4. The method of claim 1, wherein the fermentation broth is one or more of EM bacteria, cellulolytic bacteria.
5. 5. The method according to claim 1 or 4, wherein the addition amount of the fermentation inoculant is 0.1% -0.5% of the dry weight of the sheep manure.
6. 6. The method according to claim 1, wherein the temperature of the stack is maintained stable by turning and ventilating during the temperature-controlled fermentation.
7. 7. The method of claim 1, wherein the post maturation and aging stage is performed at a vented site for 1-2 weeks.
8. 8. A high efficiency organic fertilizer prepared by the method of any one of claims 1-7.

Description

Method for preparing efficient organic fertilizer based on mixed fermentation of sheep manure and fireholding plant ash Technical Field The invention relates to the technical field of agricultural organic waste resource utilization, in particular to a method for preparing a high-efficiency organic fertilizer based on mixed fermentation of sheep manure and fireholding plant ash. Background Sheep manure is used as a high-quality organic fertilizer source with wide sources in agricultural production, is rich in nitrogen, phosphorus, potassium and various medium and trace elements, and is an important organic material for improving soil and crop quality. However, the direct application of the insufficiently treated sheep manure has a plurality of defects that on one hand, the organic matters are slowly decomposed, the nutrient release rate is difficult to match with the fertilizer requirement rule of crops, the fertilizer efficiency is delayed, on the other hand, a large number of parasitic ova, pathogenic microorganisms and weed seeds are often carried in the sheep manure, soil-borne diseases are easy to spread and the pest control pressure is increased when the sheep manure is directly returned to the field, and in addition, when the insufficiently decomposed sheep manure is subjected to secondary fermentation in soil, local high temperature and organic acid accumulation are easy to occur, so that the root and seedling burning of crops are caused, and the agricultural production safety is seriously influenced. The traditional sheep manure treatment mostly adopts single material natural composting or adds conventional microbial inoculum to assist fermentation, although organic matter decomposition can be realized to a certain extent, obvious short plates exist, firstly, the fermentation period is long, the standard of decomposition can be achieved only by 1-3 months, the production efficiency is low, secondly, the killing effect on parasitic ova, pathogenic bacteria and weed seeds is limited, the strict requirement of modern agriculture on the sanitation index of the organic fertilizer is difficult to meet, thirdly, organic acid accumulation is easy to generate in the fermentation process, the stack acidification is caused, the activity of beneficial microorganisms is inhibited, the nutrient activation and release efficiency are influenced, and the safety and fertilizer efficiency improvement requirements of the organic fertilizer are difficult to be considered. Plant ash is a residue obtained after plant biomass (such as straw, firewood and the like) is fully combusted, is rich in mineral elements such as potassium, calcium, magnesium, silicon and the like, is strongly alkaline, and has the functions of inhibiting bacteria, killing insects and improving the acidity of soil. In the prior art, plant ash after complete cooling is mostly adopted as a soil conditioner or fertilizer auxiliary material, but the special 'fire-holding state' when combustion is just extinguished, namely, the physicochemical state of 40-80 ℃ waste heat, strong alkalinity and high activity is still maintained, and systematic excavation and utilization are not obtained yet. The physical and chemical properties of the plant ash after conventional cooling tend to be stable, the synergistic effect of the instantaneous high temperature and the strong alkalinity disappears, and the quick disinsection sterilization and nutrient activation are difficult to realize in the early stage of preparing the organic fertilizer, so that the resource synergistic potential of the sheep manure and the plant ash is not fully released. At present, the prior art has not seen reports on the preparation of organic fertilizer by carrying out instant and uniform mixing of plant ash in a fire-sustaining state and sheep manure and utilizing the synergistic effect of waste heat and strong alkalinity. The conventional process can not realize the dual purposes of efficient disinsection and sterilization and nutrient activation at the same time in the initial stage of fermentation, so that the potential safety hazard of direct application of the sheep manure is difficult to solve, the resource value of two agricultural wastes, namely the sheep manure and plant ash, is not fully exerted, and the resource utilization efficiency and the added value improvement of the agricultural organic waste are restricted. Disclosure of Invention The invention aims to overcome the defects of the prior art, and provides a preparation method of the sheep manure organic fertilizer, which has the advantages of short fermentation period, thorough pest killing and sufficient nutrient activation, so as to realize the efficient recycling of sheep manure and plant ash agricultural wastes. The invention adopts the following technical scheme to realize the aim: A method for preparing a high-efficiency organic fertilizer based on mixed fermentation of sheep manure and fireholding plant ash comprises