CN111117633A

CN111117633A - Soil conditioner

Info

Publication number: CN111117633A
Application number: CN201811187845.0A
Authority: CN
Inventors: 赖少光
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-10-12
Filing date: 2018-10-12
Publication date: 2020-05-08

Abstract

The invention discloses a soil conditioner which is prepared from the following raw materials in percentage by weight: 55-60% of turfy soil, 12-15% of lignite, 10-11% of hydroxyapatite, 8-10% of ammonium nitrate, 0.3-0.7% of nitrobacteria, 0.2% of chelating agent, 3.3-3.6% of fulvic acid, 3.8-4.7% of bird droppings phosphorus and 2% of ferment bacteria, and one earthworm egg is added in every three hundred grams of the prepared soil conditioner. The method can effectively condition the saline-alkali soil, can reduce the dependence of the saline-alkali soil on the soil conditioner, and can condition the finished soil with low dependence on the soil conditioner.

Description

Soil conditioner

Technical Field

The invention relates to the field of soil improvement, in particular to a soil conditioner.

Background

The domestic saline-alkali land improvement method and technology mainly comprise physical improvement, water conservancy improvement, chemical improvement and biological improvement. And only two improvement technologies, namely chemical improvement and biological improvement, are direct and remarkable in the effect of finally causing the change of substances and element components of the soil. Wherein, the chemical improvement is to directly apply gypsum, phosphogypsum, calcium superphosphate, humic acid, peat, vinegar residue and other chemical components to the soil and directly change the soil components of the saline-alkali soil. The biological improvement is realized by applying microbial fertilizer or planting salt-tolerant plants such as sesbania, and performing biological metabolism by using unbalanced elements in saline-alkali soil, so that the element components of the soil are changed.

Most of the existing soil conditioners are chemically improved, so that the dependence of soil on the soil conditioners is high. Once the input of the soil conditioner is stopped, the soil quality is likely to deteriorate again.

Disclosure of Invention

The present invention aims to overcome the above-mentioned shortcomings and provide a technical solution to solve the above-mentioned problems.

The soil conditioner is prepared from the following raw materials in percentage by weight: 55-60% of turfy soil, 12-15% of lignite, 10-11% of hydroxyapatite, 8-10% of ammonium nitrate, 0.3-0.7% of nitrobacteria, 0.2% of chelating agent, 3.3-3.6% of fulvic acid, 3.8-4.7% of bird droppings phosphorus and 2% of ferment bacteria, wherein one earthworm egg is added in every three hundred grams of the prepared soil conditioner.

As a further scheme of the invention: the organic matter content of the turfy soil is 40-60%.

As a further scheme of the invention: the nitrifying bacteria are dry powder preparations of the nitrobacter winogradskyi.

As a further scheme of the invention: the chelating agent is served by polyphosphate.

As a further scheme of the invention: the turfy soil, the lignite, the hydroxyapatite, the ammonium nitrate and the guano phosphorus are all granular, and the upper limit of the granularity of the turfy soil is 40 meshes.

As a further scheme of the invention: the bird droppings contain 20-30% of phosphorus pentoxide.

As a further scheme of the invention: the ferment bacteria comprise azotobacter, phosphate solubilizing bacteria and potassium solubilizing bacteria.

Compared with the prior art, the invention has the beneficial effects that:

the method can effectively condition the saline-alkali soil, can reduce the dependence of the saline-alkali soil on the soil conditioner, and can condition the finished soil with low dependence on the soil conditioner.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Detailed Description

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.

In embodiment 1 of the invention, a soil conditioner is prepared from the following raw materials in percentage by weight: 58% of turfy soil, 12% of lignite, 11% of hydroxyapatite, 8% of ammonium nitrate, 0.5% of nitrobacteria, 0.2% of chelating agent, 3.6% of fulvic acid, 4.7% of guano phosphorus and 2% of ferment bacteria, and one earthworm egg is added in every three hundred grams of the prepared soil conditioner.

In embodiment 2 of the invention, the soil conditioner is prepared from the following raw materials in percentage by weight: 60% of turfy soil, 12% of lignite, 10% of hydroxyapatite, 8% of ammonium nitrate, 0.3% of nitrobacteria, 0.2% of chelating agent, 3.6% of fulvic acid, 3.9% of guano phosphorus and 2% of ferment bacteria, and one earthworm egg is added in every three hundred grams of the prepared soil conditioner.

In embodiment 3 of the invention, the soil conditioner is prepared from the following raw materials in percentage by weight: 55% of turfy soil, 15% of lignite, 10% of hydroxyapatite, 10% of ammonium nitrate, 0.7% of nitrobacteria, 0.2% of chelating agent, 3.3% of fulvic acid, 3.8% of guano phosphorus and 2% of ferment bacteria, and one earthworm egg is added in every three hundred grams of the prepared soil conditioner.

In the above embodiment, the turfy soil is rich in organic matters, and is used for increasing the organic matters in the soil to be conditioned and providing food for earthworms hatched from earthworm eggs added in the soil conditioner.

The lignite contains humic acid which can be dissolved in alkaline solution, is used for reducing the pH value of the soil to be conditioned, and has a good effect of conditioning the saline-alkali soil.

The hydroxyapatite is used for adsorbing and reducing free strong alkaline metal ions such as sodium, potassium, heavy metal and the like in the soil, thereby preliminarily reducing the pH value of the soil. And the calcium ions of the hydroxyapatite and the copper and zinc ions in the soil are subjected to ion exchange, and a nano hydroxyapatite precipitate containing heavy metal components is formed, so that the reduction of saline-alkali caking of the soil is facilitated.

The ammonium nitrate is rich in nitrogen elements, and can effectively supplement the nitrogen element content in the soil.

The nitrifying bacteria can effectively promote the decomposition of ammonium nitrate and supplement nitrogen elements for soil.

The chelating agent can be combined with alkali metal ions to form a chelate, so that the soil composition structure is improved.

The fulvic acid can promote the growth of plants, improve the stress resistance of the plants, and has the effects of increasing yield and improving quality.

The guano phosphorus is rich in phosphorus element, is easy to decompose, and can quickly and effectively supplement the phosphorus element in the soil.

The ferment bacteria can effectively solve the problems of chemical fertilizer public nuisance, pesticide pollution, soil hardening, environmental pollution and the like in agricultural production through fermentation and decomposition.

When in use, the fertilizer is mixed with water according to the mass ratio of 1: 3, and the mixture is uniformly stirred and then injected into soil to be conditioned through a drip irrigation pipeline. Or the soil conditioner is matched with a plough for use, and the soil conditioner mixed with water is placed in the soil, so that the pesticide distribution agent takes effect conveniently and earthworm eggs are hatched. And after the soil conditioner is put in, the soil to be conditioned is subjected to film covering treatment for heat preservation and moisture preservation of the soil.

A control experiment is carried out on cotton planted in saline-alkali soil with the salt content of 1.8g/kg and the pH value of 7.6, a conditioning group and a control group are 5 mu land respectively, wherein the control group is not treated, and 15kg, 20kg, 25kg, 30kg and 35kg of soil conditioner drying agent are added into the conditioning group respectively. After planting, the average yield per mu of the control group is 257kg, and the yields of the conditioning group are 302kg, 330kg, 395kg, 428kg and 417kg respectively. After the control experimental land is normally used for one year, the conditioning groups do not apply the pesticide again, the cotton is planted at the same time with the control groups, the average yield per mu of the control groups is 255.8kg when the cotton is harvested, and the yields of the conditioning groups are 298kg, 326kg, 399kg, 425kg and 420kg respectively, so that the condition that the saline-alkali soil is low in dependence on the invention is proved.

The working principle of the invention is as follows:

the invention can effectively supplement nitrogen and phosphorus elements which are lacked in the soil by combining a plurality of chemical substances and organic matters. And can neutralize the alkalinity of the saline-alkali soil, so that the pH value of the soil is suitable for the growth of plants. Simultaneously, the method adsorbs and reduces free strong alkaline metal ions such as sodium, potassium, heavy metals and the like in the soil, and effectively prevents the heavy metal ions from being absorbed by plants.

Earthworm eggs are mixed in the prepared soil conditioner, earthworms are introduced into soil to be conditioned, the soil is conditioned through the biological activities of the earthworms, and a healthy and ordered soil environment is created, so that the dependence of the soil on the soil conditioner is reduced.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The soil conditioner is characterized by being prepared from the following raw materials in percentage by weight: 55-60% of turfy soil, 12-15% of lignite, 10-11% of hydroxyapatite, 8-10% of ammonium nitrate, 0.3-0.7% of nitrobacteria, 0.2% of chelating agent, 3.3-3.6% of fulvic acid, 3.8-4.7% of bird droppings phosphorus and 2% of ferment bacteria, wherein one earthworm egg is added in every three hundred grams of the prepared soil conditioner.

2. The soil conditioner according to claim 1, wherein the organic matter content of the peatmoss is 40-60%.

3. The soil conditioner of claim 1, wherein the nitrifying bacteria are dry powder formulations of Nitrobacter winogradskyi.

4. Soil conditioner according to claim 1, characterized in that the chelating agent is acted upon by polyphosphate.

5. The soil conditioner of claim 1, wherein the peatmoss, lignite, hydroxyapatite, ammonium nitrate and guano are all in granular form with an upper particle size limit of 40 mesh.

6. The soil conditioner of claim 1, wherein said struvite phosphorus comprises 20% to 30% phosphorus pentoxide.

7. The soil conditioner of claim 1, wherein said ferment bacteria comprise azotobacter, phosphate solubilizing bacteria, and potassium solubilizing bacteria.