CN103275729A - Improved additive for desertified soil, and preparation method thereof - Google Patents

Abstract

The invention relates to an improved additive for desertified soil, and a preparation method thereof. The preparation method comprises the steps of weighing 50-60 wt% of mushroom bran, mixing the mushroom bran with 5-10 wt% of horse dung and 35-40 wt% of biogas residues thoroughly, soaking the mushroom bran and the horse dung with water; loading the thoroughly mixed mixture into a fermentation tank, covering the fermentation tank with a fermentation cover with air holes; decomposing for 50-80 days in a plastic greenhouse with a day temperature of 25-30 DEG C, and a night temperature of 20-25 DEG C; stirring every five days and supplementing a proper amount of water during the decomposition period of rich microorganisms in the for the horse dung to the mushroom bran; and fermenting for 50-80 days, and thus the improved additive for the desertified soil is obtained. The preparation method is simple and practical, and raw materials come from waste culture medium mushroom bran after edible mushrooms fruit, thereby providing a useful approach for improving the desertified soil.

Description

A kind of additive of improveing prone soil and preparation method thereof

Technical field

The present invention relates to a kind of additive of improving the soil and preparation method thereof, particularly relate to a kind of additive of improveing prone soil and preparation method thereof.

Background technology

Because soil erosion, rain erosion and other human factors etc. cause soil Desertification, impoverishment, the positive subject to severe risks of damage of whole world land resources, and land resources is annual is approximately falling sharply with the speed of losing 5,000,000 one 700 ten thousand hectares.China is subjected to desertification of land, degeneration to endanger one of the most serious country in the world.According to Chinese desertification situation communique in 2005, by 2004, national soil erosion area reached 356 square kilometres, accounts for area 37%.The sandy land area reaches 1,740,000 square kilometres, accounts for area 18.1%.Simultaneously, degenerating to some extent appears in 90% above natural grasslands.Because the prone soil hole is big, quality is loose, poor water retention property, and a little less than the retaining power, fertilizer-preserving ability is poor, and nutrient is easy to run off.Therefore, the desertification of land meeting causes soil water storage preserve moisture and fertility ability to descend, and physico-chemical property is degenerated, and the soil is barren, productivity decline, deterioration of the ecological environment etc.Show that according to national forestry general bureau data China causes direct economic loss up to 54,000,000,000 yuan because of desertification of land every year.Land deterioration not only worsens ecotope, the decline fertility, and also the husky district of aggravation is poor, threatens human being's production and living space.Therefore the improvement of prone soil is particularly important.

At present, the chemical additive of improvement prone soil has two big classes, and a class is acrylamide-acrylicacid salt crosslinking copolymerization things such as polyacrylamide, sodium polyacrylate, polyacrylic acid potassium, ammonium polyacrylate; Another kind of is starch grafted acrylate crosslinking copolymerization thing.This two class is macromolecular compound, and degradation speed is slow, and it is fast to lose efficacy, and water retention capacity forfeiture in 1 year completely lost in 60%, the three year.If repeatedly be applied to soil, will inevitably in soil, accumulate, when its content surpasses certain density the time, will pollute soil.Other additives of improvement prone soil have peat, microorganism fertilizer, mud, biomass semicoke, biological carbon soil, electric arc furnace dust-collector, stalk improvement material etc.Peat, be called the peat composed of rotten mosses, mud coal again, it is a kind of process formed atmospheric swamp in several thousand ground product, it is the minimum coal of degree of coalification, light weight, water holding, guarantor's fertilizer, be conducive to microbial activities, strengthen biological property, of many uses, can be used for agricultural and industry such as fuel generating, chemical industry, wine brewing, medicine, potting and material of construction.Utilize peat improvement prone soil, the wasting of resources.Microbial fertilizer is live body fertilizer, its effect is mainly finished by a large amount of beneficial microorganism vital movements that it contains, have only these beneficial microorganisms of working as to be under vigorous breeding and the metabolic situation, material transforms and useful meta-bolites could constantly form, its fertilizer efficiency and number of viable, intensity and ambient environmental conditions are closely related, the too dried or too wet performance that all is unfavorable for Effect of Bacteria Fertilizer of soil, suitable soil humidity is about 60%, therefore uses the restriction that its improvement prone soil can be subjected to moisture, temperature, nutritional condition.Mud is semi-solid state or the solid matter after the sewage disposal, is a kind of extremely complicated heterogeneous body of being made up of organic relic, bacterium thalline, inorganic particle, colloid etc., the water ratio height, and the organic content height, but cause secondary pollution easily.Utilize biomass semicoke, the good soil of biological carbon land reform, can improve Soil structure, improve storage capacity and the ion-exchange capacity of soil, increase organic matter content in soil, but its farmlands that are applied to can partly replace the effect of chemical fertilizer more, utilize its improvement prone soil, the wasting of resources.The electric furnace arrangement for producing steel dust-collector is a nanometer ore deposit, and major ingredient is FeO, ZnFeO ₄Automolite, Ca (OH) ₂, remaining heavy metal is lead, cadmium, chromium, nickel etc., causes secondary pollution easily.Stalk improvement material adds in the soil and fully mixes with topsoil, non-secondary pollution, and cost is lower, and soil does not have and hardens, and stalk improvement material has the characteristics of soil improvement agent and fertilizer concurrently, but the decomposition time is long, and relative bacterium chaff cost is higher.

Summary of the invention

The object of the present invention is to provide a kind of additive of improveing prone soil and preparation method thereof.The present invention utilizes the improvement prone soil additive of bacterium chaff, horsehit and water preparation, has replenished organic and fertilizer such as N, P, K, has improved water retention capacity; Simultaneously preparation method of the present invention is simple, and the discarded culture material bacterium chaff of raw material sources behind edible mushroom is for the improvement of prone soil provides a useful approach.

The objective of the invention is to be achieved through the following technical solutions:

A kind of additive of improveing prone soil, the weight percent of this additive consists of: the bacterium chaff of 50-60wt%, the natural pond slag of the horsehit of 5-10wt% and 35-40wt%.

A kind of preparation method who improves the prone soil additive, described method comprises following process:

A, taking by weighing the bacterium chaff that weight percent is 50-60wt%, is that the horsehit of 5-10wt% and natural pond slag that weight percent is 35-40wt% are mixed thoroughly with itself and weight percent, makes water saturates bacterium chaff and horsehit;

Mixture behind b, the mixing fermentor tank of packing into is built the fermentation lid of breather hole, is placed on temperature 25-30 ℃ of daytime, night temperature 20-25 ℃ plastic greenhouse and carries out decomposition;

C, decomposition time are 50-80 days, in horsehit abundant microorganism to bacterium chaff decomposition during, stirred every 4 days, and an amount of moisturizing, after fermentation 50-80 days, namely obtain improveing the additive of prone soil.

Advantage of the present invention and effect are:

The present invention utilizes the improvement prone soil additive of bacterium chaff, horsehit and water preparation, has replenished organic and fertilizer such as N, P, K, has improved water retention capacity; The additive main raw material of the preparation of the present invention simultaneously is the discarded culture material bacterium chaff that derives from behind the edible mushroom, so its wide material sources, and is with low cost; The bacterium chaff contains a large number of nutrients, does not contain hazardous substance, and has avoided secondary pollution, so the present invention provides an effective way for the improvement of prone soil.

Embodiment

The present invention is described in detail below in conjunction with embodiment.

Embodiment 1

A kind of improvement prone soil additive comprises bacterium chaff, horsehit and water, and its content is: 50 kilograms of bacterium chaffs, 10 kilograms of horsehits, 40 kilograms in water.This improvement prone soil additive prepares by the following method:

1, takes by weighing 50 kilograms bacterium chaff, itself and 10 kilograms horsehit and 40 kilograms water are mixed thoroughly, make water saturates bacterium chaff and horsehit;

2, the fermentor tank of packing into of the mixture behind the mixing is built the fermentation lid of breather hole, is placed on temperature 25-30 ℃ of daytime, night temperature 20-25 ℃ plastic greenhouse and carries out decomposition;

3, the decomposition time is 50-80 days.In horsehit abundant microorganism to bacterium chaff decomposition during, stirred every 4 days, and an amount of moisturizing.After fermentation 50-80 days, namely obtain improveing the additive of prone soil.

Embodiment 2

A kind of improvement prone soil additive comprises bacterium chaff, horsehit and water, and its content is: 600 kilograms of bacterium chaffs, 50 kilograms of horsehits, 350 kilograms in water.This improvement prone soil additive prepares by the following method:

1, takes by weighing 600 kilograms bacterium chaff, itself and 50 kilograms horsehit and 350 kilograms water are mixed thoroughly, make water saturates bacterium chaff and horsehit;

2, the fermentor tank of packing into of the mixture behind the mixing is built the fermentation lid of breather hole, is placed on temperature 25-30 ℃ of daytime, night temperature 20-25 ℃ plastic greenhouse and carries out decomposition;

3, the decomposition time is 50-80 days.In horsehit abundant microorganism to bacterium chaff decomposition during, stirred every 4 days, and an amount of moisturizing.After fermentation 50-80 days, namely obtain improveing the additive of prone soil.

Claims (2)

1. an additive of improveing prone soil is characterized in that, the weight percent of this additive consists of: the bacterium chaff of 50-60wt%, the natural pond slag of the horsehit of 5-10wt% and 35-40wt%.

2. a preparation method who improves the prone soil additive is characterized in that, described method comprises following process:

A, taking by weighing the bacterium chaff that weight percent is 50-60wt%, is that the horsehit of 5-10wt% and natural pond slag that weight percent is 35-40wt% are mixed thoroughly with itself and weight percent, makes water saturates bacterium chaff and horsehit;

Mixture behind b, the mixing fermentor tank of packing into is built the fermentation lid of breather hole, is placed on temperature 25-30 ℃ of daytime, night temperature 20-25 ℃ plastic greenhouse and carries out decomposition;

C, decomposition time are 50-80 days, in horsehit abundant microorganism to bacterium chaff decomposition during, stirred every 4 days, and an amount of moisturizing, after fermentation 50-80 days, namely obtain improveing the additive of prone soil.