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Inorganic-organic nutritional soil improver and preparation method thereof

A technology of soil improver and organic nutrition, which is applied in the field of inorganic-organic nutrient soil improver and its preparation, and can solve the problems of lack of extensive and specific soil improver products, high cost of soil improver, and farmers do not know how to choose To achieve the effect of improving soil agronomic value, alleviating water evaporation and massive loss of fertilizer, and improving the ability to absorb water and nutrients

Active Publication Date: 2014-10-08
甘肃西部凹凸棒石应用研究院
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The effect of these products on soil improvement is very obvious, and they have many functions, but there are still the following main problems: First, the cost of artificially synthesized soil amendments is relatively high, which limits their popularization and application; second, they lack universality and specificity. Soil improver products, and there are many types of soil improver products, so that farmers do not know how to choose; third, natural polymer products such as cellulose, hemicellulose, lignin, humic acid, starch copolymer, etc. are easily destroyed by soil microorganisms. Decomposition, application cycle is short, and the dosage is large, and a large amount of cations released after application are toxic to the soil; Fourth, there is no soil conditioner variety made of attapulgite, humic acid and synthetic preparations in the market.

Method used

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  • Inorganic-organic nutritional soil improver and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0031] Embodiment 1, a kind of inorganic-organic nutrition type soil conditioner, its raw material and weight ratio are:

[0032] Attapulgite clay 65%, active humic acid organic fertilizer 20%, hydrolyzed polyacrylonitrile ammonium salt 5%, potassium polyacrylate 5%, nanmu powder 3%, sodium hexametaphosphate 2%.

[0033] The production process flow chart is attached figure 1 , the specific preparation method is:

[0034] a. Preparation of attapulgite fine powder: Attapulgite clay minerals are hand-selected→dried→crushed→grinded→graded to make fine powder of 100 mesh to 150 mesh, with a water content of ≤15%, and the color is off-white or red;

[0035] b. Preparation of active humic acid fertilizer: make peat, lignite, and weathered coal raw materials through testing each component raw material → solid raw material crushing → sieving → batching → crushing, and make 100-150 mesh fine powder; active humic acid fertilizer Total nutrient "N+P2O5+K2O"≥15%, of which single nutrient...

Embodiment 2

[0039] Embodiment 2: a kind of inorganic-organic nutritional soil conditioner, its raw material and weight ratio are: attapulgite clay 50%, active humic acid organic fertilizer 30%, hydrolyzed polyacrylonitrile ammonium salt 5%, polyacrylic acid Potassium 5%, Phoebe powder 5%, Sodium hexametaphosphate 5%.

[0040] The production process flow chart is attached figure 1 . The specific preparation method is: according to the weight percentage of the above-mentioned components, put them into a (conventional) mixer respectively, mix evenly, and then granulate and dry to obtain the product.

[0041]

Embodiment 3

[0042] Embodiment 3: a kind of inorganic-organic nutritional soil conditioner, its raw material and weight ratio are: attapulgite clay 80%, active humic acid organic fertilizer 10%, hydrolyzed polyacrylonitrile ammonium salt 2%, polyacrylic acid Potassium 2%, nanmu powder 5%, sodium hexametaphosphate 1%. The preparation method is the same as in Example 2.

[0043]

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Abstract

The invention relates to an inorganic-organic nutritional soil improver which is characterized by being prepared from the following raw materials in percentage by weight: 50-80% of attapulgite clay, 10-30% of an active humic acid organic fertilizer, 2-8% of hydrolyzed polyacrylonitrile ammonium salt, 2-8% of potassium polyacrylate, 1-5% of Nanmu powder and 1-5% of sodium hexametaphosphate. The soil improver provided by the invention can be suitable for same soil texture or same power of hydrogen of different soils such as sandy soil, clayey soil and loam, so that not only can the volume of soil and the total porosity inside the soil be effectively reduced, but also the granular structure of the soil can be further remarkably improved. The soil improver has a certain adsorption effect to moisture and fertilizer in the soil, so that evaporation of water and the loss of the fertilizer in quantity are alleviated, the production cost is low and the application rate is small.

Description

technical field [0001] The invention relates to the technical field of fertilizer production, in particular to an inorganic-organic nutritional soil conditioner and a preparation method thereof. Background technique [0002] Under a series of cultivation patterns that underestimate the soil environment, such as long-term continuous cropping and large-scale application of chemical fertilizers, 1.8 billion mu of cultivated land across the country has shown regional problems to varying degrees, such as a sharp decline in organic matter in black soil in Northeast China, intensified soil acidification in southern cultivated land, and arable land in North China. The layer becomes shallower, the salinization of cultivated land in Northwest China is serious, etc., so "soil restoration" has attracted more and more attention from chemical fertilizer companies. It was introduced into China in the mid-1980s and was vigorously developed for a time. Soil improvers (also known as soil stru...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C09K17/50C09K101/00
Inventor 王永斌李文东王兆荣陈馨
Owner 甘肃西部凹凸棒石应用研究院
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