CN113179694A

CN113179694A - Soil roughening method, roughened soil and application thereof

Info

Publication number: CN113179694A
Application number: CN202110453588.6A
Authority: CN
Inventors: 吕林有; 李媛; 赵艳; 陈曦; 杨建军; 吴一鸣; 陶金山; 王凯; 陈梦非; 郑悦
Original assignee: Liaoning Technical University
Current assignee: Liaoning Technical University
Priority date: 2021-04-26
Filing date: 2021-04-26
Publication date: 2021-07-30

Abstract

The invention provides a soil roughening method, roughened soil and application thereof, belonging to the technical field of soil treatment, and the method comprises the steps of grinding and sieving river sand and a soil conditioner, mixing the ground and sieved river sand and the soil conditioner into soil according to 30-70 wt% of the soil, and uniformly mixing to obtain roughened soil, wherein the soil conditioner is prepared from the following raw materials in parts by weight: 10-50 parts of organic fertilizer, 5-12 parts of fly ash, 2-5 parts of soybean meal, 1-3 parts of rice bran, 1-1.5 parts of ammonium nitrate, 0.1-0.2 part of urease and 0.1-0.2 part of soil dehydrogenase. The invention provides a soil roughening method and obtains roughened soil, the roughened soil has a structure similar to that of natural grassland soil, can well promote the growth of small shrub plants, particularly the growth of the moleplant seed, has the advantages of fast growth cycle, high growth speed and high plant nutritive value, and can be well applied to the preparation of feeds.

Description

Soil roughening method, roughened soil and application thereof

The technical field is as follows:

the invention belongs to the technical field of soil treatment, and particularly relates to a soil roughening method, roughened soil and application thereof.

Background art:

soil coarsening is the malignant development of soil desertification, and is characterized in that under the action of strong wind erosion, fine granular substances in soil are blown and eroded to generate coarse graining evolution, organic matters and nutrients are lost in the process, and the soil function is reduced again. The phenomenon of soil coarsening is commonly found in regions with high human production activity intensity, such as over-herding grassland regions, desertification farmland regions, bare felled forest lands and the like, and the serious grazing sandy grassland is the most serious. China is a big grassland resource country, the grassland area is nearly 400 ten thousand square kilometers, the grassland area occupies more than 40 percent of the national soil area, and the grassland area plays an important role in national economic construction and ecological environment maintenance. At present, about 90% of natural grass is already in various degrees of deterioration, with severe deteriorated desertification accounting for about 60% and still at 200 ten thousand hm per year²Has become increasingly rapid, and the coarsening of grassland soil desertification is a common phenomenon and is increasingly serious to some extent.

The Xingan Lespedeza dauricus (Laxm.) Schind) is a perennial grassy plant of Lespedeza of Leguminosae, is an excellent feeding plant because of strong adaptability and good resistance, and is suitable for optimized selection of desertification control engineering construction by combining biological nitrogen fixation and green manure application because various livestock like young branches like eating. At present, few research works on Xingan Lespedeza have been carried out at home and abroad, and research on the directions of desertification prevention and control application and the like is less and less, so that research and research on growth of Xingan Lespedeza plants and population structure change rules are mainly carried out on the basis of building a soil coarsening platform, the influence of soil coarsening on plant growth development is deeply analyzed on the individual level and the population level of species, and basic data theoretical support is better provided for the desertification prevention and control scientific research work.

The invention content is as follows:

the invention aims to overcome the defects in the prior art and provide a soil roughening method, roughened soil and application thereof, wherein the roughened soil has a structure similar to that of natural grassland soil, can well promote the growth of small shrub plants, particularly the growth of Xingan Lespedeza, has the advantages of fast growth cycle, high growth speed and high plant nutritive value, and can be well applied to the preparation of feeds.

In order to achieve the purpose, the invention adopts the following technical scheme:

a soil roughening method comprising the steps of:

grinding and sieving river sand and a soil conditioner, mixing the ground river sand and the soil conditioner into soil according to 30-70 wt% of the soil, and uniformly mixing to obtain the coarsened soil, wherein the soil conditioner is prepared from the following raw materials in parts by weight: 10-50 parts of organic fertilizer, 5-12 parts of fly ash, 2-5 parts of soybean meal, 1-3 parts of rice bran, 1-1.5 parts of ammonium nitrate, 0.1-0.2 part of urease and 0.1-0.2 part of soil dehydrogenase.

The river sand is sieved by a 4-8 mesh sieve.

The diameter of the engineering sieve in the sieving is 8 mm.

The mixing amount of the river sand is 40-60 wt% of the soil mass.

The soil conditioner is prepared from the following raw materials in parts by weight: 30 parts of organic fertilizer, 7 parts of fly ash, 3 parts of soybean meal, 2 parts of rice bran, 1.2 parts of ammonium nitrate, 0.15 part of urease and 0.15 part of soil dehydrogenase.

The coarsened soil prepared by the method.

Application of the coarsened soil in cultivating shrub plants.

The shrubbery plant is the moleplant seed.

The invention has the beneficial effects that:

the invention provides a soil roughening method and obtains roughened soil, the roughened soil has a structure similar to that of natural grassland soil, can well promote the growth of small shrub plants, particularly the growth of the moleplant seed, has the advantages of fast growth cycle, high growth speed and high plant nutritive value, and can be well applied to the preparation of feeds.

The specific implementation mode is as follows:

the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all 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.

Example 1

The soil conditioner comprises the following raw materials in parts by weight: 10 parts of organic fertilizer, 5 parts of fly ash, 2 parts of soybean meal, 1 part of rice bran, 1 part of ammonium nitrate, 0.1 part of urease and 0.1 part of soil dehydrogenase.

Grinding and sieving river sand and a soil conditioner, wherein the diameter of an engineering sieve is 8mm, mixing the river sand and the soil conditioner into soil according to 30 wt% of the soil mass, and uniformly mixing to obtain the coarsened soil. The river sand is 4 meshes.

Example 2

The soil conditioner comprises the following raw materials in parts by weight: 50 parts of organic fertilizer, 12 parts of fly ash, 5 parts of soybean meal, 3 parts of rice bran, 1.5 parts of ammonium nitrate, 0.2 part of urease and 0.2 part of soil dehydrogenase.

Grinding and sieving river sand and a soil conditioner, wherein the diameter of an engineering sieve is 8mm, mixing the river sand and the soil conditioner into soil according to 70 wt% of the soil mass, and uniformly mixing to obtain the coarsened soil. The river sand is 8 meshes.

Example 3

The soil conditioner comprises the following raw materials in parts by weight: 15 parts of organic fertilizer, 7 parts of fly ash, 3 parts of soybean meal, 1.5 parts of rice bran, 1.1 parts of ammonium nitrate, 0.12 part of urease and 0.12 part of soil dehydrogenase.

Grinding and sieving river sand and a soil conditioner, wherein the diameter of an engineering sieve is 8mm, mixing the river sand and the soil conditioner into soil according to 40 wt% of the mass of the soil, and uniformly mixing to obtain the coarsened soil. The river sand is 4 meshes.

Example 4

The soil conditioner comprises the following raw materials in parts by weight: 45 parts of organic fertilizer, 11 parts of fly ash, 4 parts of soybean meal, 2.5 parts of rice bran, 1.4 parts of ammonium nitrate, 0.18 part of urease and 0.18 part of soil dehydrogenase.

Grinding and sieving river sand and a soil conditioner, wherein the diameter of an engineering sieve is 8mm, mixing the river sand and the soil conditioner into soil according to 60 wt% of the soil mass, and uniformly mixing to obtain the coarsened soil. The river sand is 8 meshes.

Example 5

The soil conditioner comprises the following raw materials in parts by weight: 30 parts of organic fertilizer, 7 parts of fly ash, 3 parts of soybean meal, 2 parts of rice bran, 1.2 parts of ammonium nitrate, 0.15 part of urease and 0.15 part of soil dehydrogenase.

Grinding and sieving river sand and a soil conditioner, wherein the diameter of an engineering sieve is 8mm, mixing the river sand and the soil conditioner into soil according to 50 wt% of the soil mass, and uniformly mixing to obtain the coarsened soil. The river sand is 4 meshes.

Test example 1

The coarsened soil prepared in the embodiments 1-5 of the invention and the soil before the ordinary coarsening are used for the cultivation test of the Xingan Lespedeza kunmingensis, and the experimental results are shown in the table 1:

TABLE 1

Measurement index	Example 1	Example 2	Example 3	Example 4	Example 5	General
							Average fresh weight g of overground part/10 plants	234	241	237	245	251	132
Average aerial part dry weight g/10 strains	17.4	18.3	17.9	18.6	19.1	9.9
							Mean clubroot (counts/m)²)	3.1	2.9	3.0	2.7	2.6	6.7
Mean incidence (%)	16.4	16.1	16.3	15.9	15.8	55.4
							Soil pH (0-10cm)	6.4	6.4	6.5	6.5	6.6	5.4
mS/cm of soil surface layer (0-10cm)	375	365	368	362	360	667

As can be seen from the above table, the soil of the present invention has better performance and is more suitable for the growth of seedlings.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A soil roughening method is characterized by comprising the following steps:

2. The method of claim 1, wherein the river sand is screened through a 4-8 mesh screen.

3. The method of claim 2, wherein the diameter of the engineered mesh in the screen is 8 mm.

4. The soil reclamation method as recited in claim 1, wherein the river sand is blended in an amount of 40 to 60 wt% based on the mass of the soil.

5. The soil roughening method as claimed in claim 1, wherein said soil conditioner is prepared from the following raw materials in parts by weight: 30 parts of organic fertilizer, 7 parts of fly ash, 3 parts of soybean meal, 2 parts of rice bran, 1.2 parts of ammonium nitrate, 0.15 part of urease and 0.15 part of soil dehydrogenase.

6. A regolified soil prepared by the method of claim 1.

7. Use of the roughened soil prepared by the method of claim 1 to cultivate shrubbery plants.

8. Use of roughened soil to cultivate shrubbery plants according to claim 7, wherein said shrubbery plants are Lespedeza virgata.