CN1182079C - Method for making organic fertilizer by utilizing housefly larva to ecologically treat pig dung - Google Patents

Abstract

The present invention discloses to a method for manufacturing organic fertilizer by pig manure of the ecological treatment of housefly larvae, which relates to the fertilizer manufactured by the manure of animals. The present invention has the purpose of providing a method for manufacturing organic fertilizer by pig manure processed by the housefly larvae. The present invention comprises precedures of culturing seed corn maggots, producing, collecting and inoculating flyblows, culturing fly maggots, separating the fly maggots, etc. so as to manufacture biologic fertilizer of nuisanceless pig manure and fly-maggot albumen of byproducts. The present invention can accelerate the curing speed of the pig manure, avoid the loss of nutrient substances and environment pollution, and reduce the breeding of the flies and mosquitoes; the present invention not only improves the biological efficacy of food chains, but also provides the nuisanceless biologic fertilizer and fly-maggot albumen feed, and is suitable for intensification pig farms and culturists.

Description

The method of making organic fertilizer by utilizing housefly larva to ecologically treat pig dung

The invention belongs to biotechnology, relate to organic fertilizer, furthermore, relate to the fertilizer of making by animal excrement.

Pig manure is the by product of pork pig animal husbandry, and along with the continuous expansion of intensive culture number and scale, the problem order of the movement environmental pollution of pig benefit is serious.China's existing pig farm major part does not have the treatment facility of pig manure urine, and treatment technology is also relatively backward.In the rural area traditional method commonly used with the pig manure heap, macerate spontaneous fermentation and become barnyard manure and use, or it is carried out anaerobically fermenting make biogas and use in methane-generating pit.In the aforesaid method, the former fermentation time is long, usually need the slaking of about 30 days ability, the foul smell that produces between yeast phase is contaminate environment not only, also cause loss of nutritive components in the pig manure, the pig manure of stacking still is the multiplying of mosquitos and flies, breeding spot, and mosquitos and flies spreads disease, and has further worsened environment for human survival; Though the latter has utilized the energy that produces by biochemical, has reduced pollution, the nutritive ingredient in the pig manure fails to make full use of, and the natural pond slag still has secondary pollution to environment, also expends a large amount of water simultaneously.In order to reduce the pollution of pig manure, also the someone adopts the heat pig manure to make it the way processing pig manure of rapid aging, and this method still fails to make full use of the nutrient in the pig manure.Many in recent years scientific research technician are in processing and the application of paying close attention to pig manure urine.Yet up to now, adopt biotechnology that the technology that pig manure is processed into pollution free organic fertilizer is not seen in as yet in reporting and being that people are known.

Purpose of the present invention just provides a kind of with biotechnology, and the employing Musca domestica larva is handled pig manure, made the method for organic biofertilizer.

Biotechnology is one of focus in the current emerging technology, adopts the Ecological Disposal animal excrements, helps the improvement of ecotope and the exploitation of pig manure resource.The contriver is through studying for many years and testing, and the method that the utilizing housefly larva to ecologically that provides is handled pig manure comprises: (1) is chosen wild housefly earlier and is raised to cultivate kind of a fly, carries out fly blow production after breeding for 3～4 generations, and it is standby to collect its fly blow of 4～18 days in back of sprouting wings; (2) fresh pig manure is laid in the treatment unit of handling the field and carries out the fly blow inoculation, pig manure lay thickness is about 6cm, and inoculum density is ovum inoculation 0.5～1m that per 10,000 kind flies are produced ²(3) carry out fly maggot afterwards and cultivate, fly blow hatching back room temperature was being cultivated more than 16 ℃ 3～5 days, and the nutrient that fly maggot is drawn in the pig manure is grown up, and decomposes the composition that produces foul smell in the pig manure simultaneously, and its secretory product has been killed the deleterious bacterium of part again; (4) after this fly maggot is sifted out with 18～20 purpose stainless steel meshs; (5) pig manure that sifts out adopts sealing to preserve the way in 1 week, or under 80 ℃ of temperature condition the way of heating 15min, obtain non-harmful pig manure bio-feritlizer after killing remaining fly maggot and maggot pupa; (6) fly maggot that sifts out can directly be used as feed, or oven dry makes fly maggot protein.

Be to guarantee that housefly is raised and breeding and increase egg laying amount, planting fly, to cultivate the condition that requires be to make feed with milk powder and white sugar, cultivates the cage tool with 20 purpose stainless steel cylinder moulds, and every day, light requirement shone 8～12 hours, relative air humidity 60%～80%.

Fly blow adopts moisture 60%～70% wheat bran to connect the ovum material when producing, lay eggs for stimulating female fly, can be at the sal volatile that connects dropping 6% on the ovum material.

The pig manure treatment unit is the dark cement pit of 15cm, or the plastic tub of placing on layer frame.

The contriver points out that through research temperature is high more in the fly maggot culturing process, and it is short more to cultivate required time; Common 16～20 ℃ of needs 5 days, 20～25 ℃ of needs 4 days only need 3 days more than 25 ℃.In order to prevent the degeneration of kind of fly, within a certain period of time, need to introduce new housefly in order to cultivate kind of a fly.

Use method provided by the invention, the pig manure biological fertilizer products that makes is loose, is Vandyke brown, odorless, and water content 45%～50%, through sampling analysis, this fertilizer contains: nitrogen 1.976 ± 0.184%, phosphorus 1.700 ± 0.189%, potassium 0.792 ± 0.205%; Quick-acting nitrogen 212.49 ± 57.25mg/100g increase about 20% than the pig manure fertilizer of natural slaking; Ammonia-state nitrogen 89.00 ± 39.59mg/100g, the pig manure fertilizer of nature slaking frequently increases about 60%.Compare with the pig manure of stacking slaking naturally, coliform group count and total plate count all obviously reduce, sustainable about 1 month of antibacterial effect; Simultaneously, fly multiplies obvious minimizing, and can not normal development.The present invention utilizes the Musca domestica larva activity to accelerate the slaking speed of pig manure, and with the nutrient substance in the form recovery pig manure of fly maggot protein, prevented the harm that the loss of nutrition speed and the environmental pollution that causes thereof and mosquitos and flies multiply effectively, not only improved the biopotency of food chain, can also fully utilize Biological resources, for agricultural development provides a kind of non-harmful bio-feritlizer and fly-maggot protein fodder, have good social benefit, economic benefit and environmental benefit, be applicable to the intensive pig production field, also be applicable to small-sized raising family.

Accompanying drawing is the schematic process flow diagram of the inventive method, each operation of the interior expression of figure center: 1 is kind of a fly raising, and 2 is fly blow production, and 3 is the fly blow collection, and 4 are the inoculation fly blow, and 5 are the cultivation fly maggot, and 6 is the separation of maggot excrement, and 7 is bio-feritlizer processing, and 8 is fly maggot protein processing.

Embodiment is a benchmark with 1 ton of pig manure.Take the some heads of local wild housefly, culture among volume is 100 * 60 * 70cm, 20 purpose stainless steel cylinder moulds, guarantee that its illumination reaches 10 hours, relative air humidity is 60%～70%, the aqueous solution with milk powder, white sugar is raised, and cultivation was used to lay eggs after 3～4 generations; Plant fly emergence and begin to lay eggs in a large number after 3 days, an amount of preparation of the wheat bran with moisture 60%～70% connects the ovum material, contains in dark color to connect in the ovum box, the about 5cm of its thickness, be used for collecting the 4th～18 day the fly blow in back of sprouting wings, in box, put into 9 o'clock every mornings or afternoon 5 o'clock and connect the ovum material, collect fly blow after 24 hours.The fly blow of collecting is standby.Fresh pig manure is laid in the cement pit of the processing field that the stainless steel screen window is housed, the dark 15cm in pond, strict control pig manure thickness is below 6cm.Standby fly blow is inoculated in the pig manure, and inoculum density is laid eggs by 10,000 kind flies inoculates 0.8m ², under 20 ℃ of conditions of room temperature, cultivated 4 days, allow the fly blow hatching grow into larva, when drawing pig manure nutrition, larva also just handled pig manure.After 3～5 days, the maggot excrement is separated, obtain the bright maggot of 200kg, obtain the 650kg bio-feritlizer simultaneously with 18 purpose stainless steel meshs.Again the sealing of the bio-feritlizer that obtains was preserved for 1 week, can use by as fertilizer sources after making wherein remaining fly maggot and the death of fly pupa.

Claims (4)

1 one kinds of methods with Musca domestica larva processing pig manure manufacturing organic fertilizer and fly maggot protein, its feature comprises: (1) chooses wild housefly earlier with cultivation kind of a fly, carries out fly blow production after breeding for 3～4 generations, and it is standby that 4～18 days the fly blow in fly emergence back is planted in collection; (2) fresh pig manure is laid in the treatment unit of handling the field and carries out the fly blow inoculation, pig manure lay gauge control is below 6cm, and inoculum density is ovum inoculation 0.5～1m that per 10,000 kind flies are produced ², (3) carry out the fly maggot cultivation afterwards, and fly blow hatching back room temperature was cultivated 3～5 days the fly maggot growth down at 16～25 ℃; (4) after this fly maggot is sifted out with 18～20 purpose stainless steel meshs; (5) pig manure that sifts out adopts sealing to preserve the way in 1 week, or under 80 ℃ of temperature condition the way of heating 15min, kill the pig manure bio-feritlizer that obtains odorless behind remaining fly maggot and the maggot pupa; (6) fly maggot that sifts out directly makes fly maggot protein as feed or oven dry.

2 the method for claim 1 is characterized in that wild species fly culture condition is to make feed with milk powder and white sugar, cultivate the cage tool with 20 purpose stainless steel cylinder moulds, illumination every day 8～12 hours, relative air humidity 60%～80%.

3 the method for claim 1 is characterized in that adopting when fly blow is produced moisture 60%～70% wheat bran to connect the ovum material, simultaneously at the sal volatile that connects dropping 6% on the ovum material.

4 the method for claim 1 is characterized in that the pig manure treatment unit is in dark cement pit of 15cm or the plastic tub of placing on layer frame.