阅读说明：本技术 一种盐碱地改良的碳基生物菌肥及制备方法 (Carbon-based biological bacterial fertilizer for saline-alkali soil improvement and preparation method thereof ) 是由 姜桂林 施恩茹 刘熙 于 2021-05-27 设计创作，主要内容包括：本发明公开了一种盐碱地改良的碳基生物菌肥及制备方法,所述的盐碱地改良的碳基生物菌肥包含以下原料：植物秸秆碳5-30份、生物菌肥25-55份、矿物质1-10份、控释肥5-20份、功能菌1-3份。本肥料中含有植物秸秆碳,它的孔隙结构给微生物菌提供良好的生活环境。此外植物秸秆碳能够促进作物营养元素的吸收,增加土壤营养,改善土壤贫瘠和吸附土壤和水体中重金属污染物质和农药残留等。本肥料适当补充矿物质、控释肥,同时加入耐盐碱的功能菌株,改善土壤微环境,增肥地力,改善土壤团粒结构,改良盐碱地土壤,促进作物根系生长。(The invention discloses a carbon-based biological bacterial fertilizer for saline-alkali soil improvement and a preparation method thereof, wherein the carbon-based biological bacterial fertilizer for saline-alkali soil improvement comprises the following raw materials: 5-30 parts of plant straw carbon, 25-55 parts of biological bacterial fertilizer, 1-10 parts of mineral substance, 5-20 parts of controlled release fertilizer and 1-3 parts of functional bacteria. The fertilizer contains plant straw carbon, and the pore structure of the fertilizer provides a good living environment for microbial bacteria. In addition, the plant straw carbon can promote the absorption of nutrient elements of crops, increase the nutrition of soil, improve the soil impoverishment and adsorb heavy metal pollutants, pesticide residues and the like in the soil and water. The fertilizer properly supplements mineral substances and controlled release fertilizer, and simultaneously adds saline-alkali tolerant functional strains, thereby improving the soil microenvironment, increasing the fertility of the soil, improving the soil aggregate structure, improving the soil of saline-alkali soil and promoting the growth of crop roots.)

1. A carbon-based biological bacterial fertilizer for saline-alkali soil improvement is characterized in that: the carbon-based biological bacterial fertilizer for saline-alkali soil improvement comprises the following raw materials: 5-30 parts of plant straw carbon, 25-55 parts of biological bacterial fertilizer, 1-10 parts of mineral substance, 5-20 parts of controlled release fertilizer and 1-3 parts of functional bacteria.

2. The carbon-based biological bacterial fertilizer for saline-alkali soil improvement, according to claim 1, is characterized in that: the alkali modified carbon-based biological bacterial fertilizer comprises the following raw materials: 20 parts of plant straw carbon, 45 parts of biological bacterial fertilizer, 8 parts of mineral substances, 15 parts of controlled release fertilizer and 2 parts of functional bacteria.

3. The carbon-based biological bacterial fertilizer for saline-alkali soil improvement, according to claim 1, is characterized in that: the plant straw carbon is prepared by pyrolysis of main agricultural wastes of corn, rice, sawdust and peanut as raw materials.

4. The carbon-based biological bacterial fertilizer for saline-alkali soil improvement, according to claim 1, is characterized in that: the biological bacterial fertilizer is prepared by fermenting furfural residues, animal wastes and humic acid bacteria according to the weight part ratio of 3:3: 1.

5. The carbon-based biological bacterial fertilizer for saline-alkali soil improvement, according to claim 1, is characterized in that: the mineral substance is a mixture of pumice powder, kaolin and coal slime.

6. The carbon-based biological bacterial fertilizer for saline-alkali soil improvement, according to claim 1, is characterized in that: the functional bacteria are saline-alkali soil tolerant functional bacteria.

7. A preparation method of a carbon-based biological bacterial fertilizer for saline-alkali soil improvement is characterized by comprising the following steps: the specific method comprises the following steps: according to the weight part raw material ratio of the carbon-based biological bacterial fertilizer for saline-alkali soil improvement, 5-30 parts of plant straw carbon, 25-55 parts of biological bacterial fertilizer, 1-10 parts of mineral substance and 5-20 parts of controlled release fertilizer are uniformly mixed at normal temperature for 20-30 minutes, then 1-3 parts of functional bacteria are added, the mixture is continuously stirred for 10-15 minutes, and extrusion granulation is carried out by an extrusion device, so that a finished product is obtained.

Technical Field

The invention relates to the technical field of agricultural fertilizers, in particular to a carbon-based biological bacterial fertilizer for saline-alkali soil improvement and a preparation method thereof.

Background

The development of science and technology reaches a new stage when human beings enter the 21 st century, and the progress of social economy is greatly promoted. On the other hand, the problems faced by human beings, such as climate change, land desertification, salinization, environmental pollution, etc., are still very prominent. In developing countries, as the population is increasing, the cultivated land area is continuously reduced, a large number of forests, grasslands, wetlands and the like are reclaimed into cultivated land, intensive management is carried out, original vegetation and soil structures are broken and recovered, and the salinization of the land is caused.

Carbon is the first nutrient of crops, the carbon nutrient of plants comprises carbon in the accumulation of plant substances and carbon metabolized and consumed in the growth process of the plants, which accounts for 50% of the total nutrients necessary for the plants, the carbon nutrient forms a 'carbon frame' of the effective tissues of the plants, various mineral elements are combined in the carbon frame to form organic matters, and the carbon is a source worthy of life.

The salinization of soil not only causes soil hardening and fertility reduction, but also seriously affects the absorption of nutrients by crops, hinders the growth of crops and has great importance in improving the saline-alkali soil, which is also a goal of agricultural science and technology workers in China.

Disclosure of Invention

The invention aims to provide a carbon-based biological bacterial fertilizer for improving saline-alkali soil and a preparation method thereof, wherein the carbon-based biological bacterial fertilizer is prepared by taking biological carbon as a carrier, adding a composite biological organic fertilizer, a mineral substance and a controlled-release fertilizer, is rich in micromolecular soluble carbon and oxygen molecules and plant extraction active substances, and ensures multiple nutrient elements required by the growth and development of ginseng.

In order to achieve the purpose, the invention provides the following technical scheme: a carbon-based biological bacterial fertilizer for saline-alkali soil improvement comprises the following raw materials: 5-30 parts of plant straw carbon, 25-55 parts of biological bacterial fertilizer, 1-10 parts of mineral substance, 5-20 parts of controlled release fertilizer and 1-3 parts of functional bacteria.

Further preferably, the alkali modified carbon-based biological bacterial fertilizer comprises the following raw materials: 20 parts of plant straw carbon, 45 parts of biological bacterial fertilizer, 8 parts of mineral substances, 15 parts of controlled release fertilizer and 2 parts of functional bacteria.

Preferably, the plant straw carbon is prepared by pyrolysis of agricultural wastes of corn, rice, wood chips and peanuts which are taken as raw materials.

Preferably, the biological bacterial fertilizer is prepared by fermenting furfural residues, animal wastes and humic acid bacteria according to the weight part ratio of 3:3: 1.

Preferably, the mineral is a mixture of pumice powder, kaolin and coal slurry.

Preferably, the functional bacteria are saline-alkali soil tolerant functional bacteria.

A preparation method of a carbon-based biological bacterial fertilizer for saline-alkali soil improvement comprises the following steps: according to the weight part raw material ratio of the carbon-based biological bacterial fertilizer for saline-alkali soil improvement, 5-30 parts of plant straw carbon, 25-55 parts of biological bacterial fertilizer, 1-10 parts of mineral substance and 5-20 parts of controlled release fertilizer are uniformly mixed at normal temperature for 20-30 minutes, then 1-3 parts of functional bacteria are added, the mixture is continuously stirred for 10-15 minutes, and extrusion granulation is carried out by an extrusion device, so that a finished product is obtained.

Compared with the prior art, the invention has the following beneficial effects: the fertilizer contains plant straw carbon, has complex polyaromatic rings and non-aromatic rings, is loose, porous, large in specific surface area, small in volume weight, strong in water and gas absorption capacity, and multi-negatively charged, and forms a magnetic field. The pore structure of the microbial fertilizer provides a good living environment for the microbial strains. In addition, the plant straw carbon can promote the absorption of nutrient elements of crops, increase the nutrition of soil, improve the soil impoverishment and adsorb heavy metal pollutants, pesticide residues and the like in the soil and water.

The fertilizer not only affects the crop yield, but also has certain influence on the physical and chemical properties of soil. Through the physical and chemical analysis of the saline-alkali soil, minerals and controlled-release fertilizers are supplemented properly, and meanwhile, saline-alkali tolerant functional strains are added, so that the soil microenvironment is improved, the soil fertility is increased, the soil aggregate structure is improved, the saline-alkali soil is improved, and the growth of crop roots is promoted.

To saline and alkaline land soil barren and ventilative water permeability poor, the fertilizer of this application can increase fertilizer efficiency and granular structure, can not grow to saline and alkaline land saline and alkaline too high plant, chooses for use bio-organic fertilizer and saline and alkaline land functional strain, grows through microorganism fungus self, can produce a large amount of mycoprotein people again and improve the little ecological environment in saline and alkaline land, promotes the crop growth.

Description of the drawings:

FIG. 1 is a flow chart of a preparation method of a carbon-based biological bacterial fertilizer for saline-alkali soil improvement.

Detailed Description

The technical solutions of the present invention will be described clearly and completely in the following embodiments of the present invention, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Examples

A preparation method of a carbon-based biological bacterial fertilizer for saline-alkali soil improvement comprises the following steps: according to the weight part of raw materials of the carbon-based biological bacterial fertilizer for saline-alkali soil improvement, plant straw carbon, the biological bacterial fertilizer, mineral substances and the controlled-release fertilizer are uniformly mixed at normal temperature according to a proportion, the mixing and stirring time is 20-30 minutes, then 1-3 parts of functional bacteria are added, the mixture is continuously stirred for 10-15 minutes, and then extrusion granulation is carried out by an extrusion device, so that a finished product is obtained.

The carbon-based biological bacterial fertilizer raw materials for saline-alkali soil improvement of examples 1 to 3 and comparative examples 1 to 3 are shown in the following table 1.

TABLE 1

A saline-alkali land is selected at a certain position of a coastal area of Jiangsu province, 7 cells are preset in the same land, rice is planted, and the variety and management of the rice are the same as those of other fertilizers.

The fertilizer prepared in the embodiment 1-3 is applied to the area 1-3, and the base fertilizer does not use any organic fertilizer, bacterial fertilizer and other products.

4-6 plots were treated with the fertilizers of comparative examples 1-3 using 300 kg of fertilizer per acre. And a blank control zone was taken.

Data were collected for soil and rice yields for each zone and are shown in table 2.

TABLE 2

As can be seen from Table 2, the soil physicochemical properties such as soil water content, soil volume weight, soil porosity and pH value of the carbon-based biological bacterial fertilizer for saline-alkali soil improvement applied in the examples 1 to 3 are all superior to those of the comparative example, and the yield of the planted rice crop is obviously improved compared with that of the comparative example. Therefore, the fertilizer has better yield increasing effect.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.