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Method for preparing liquid alga planting mulch

A technology of seaweed and mulch, applied in chemical instruments and methods, organic fertilizers, fertilizer mixtures, etc., can solve problems such as threats to the sustainable development of agriculture, hindering crop root absorption, soil secondary salinization, etc., to restore natural gum Balance, increase soil biological vitality, simple effect of production method

Active Publication Date: 2014-02-05
青岛海大生物集团股份有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Long-term use of mulch film will lead to the increase of residual film in the soil, the destruction of soil structure, hindering the absorption of water by crop roots, reducing soil fertility, and even causing groundwater to infiltrate hard, soil secondary salinization, etc., seriously threatening the sustainable development of agriculture in my country

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] (1) Preparation of sodium alginate solution

[0057] A. Cut the dry kelp into pieces, soak in water for 1 hour according to the weight ratio of dry kelp: water = 1:18;

[0058] B, add sodium bicarbonate to the soaked sea-tangle, its consumption is 1.5% of the total weight of sea-tangle and water, stir and heat under the condition of 50 ℃ for 3 hours;

[0059] C. Pass colloid mill, press filter or centrifuge;

[0060] D, the obtained liquid is the alginic acid solution with alginic acid and mannitol as the main active ingredients;

[0061] (2) Preparation of sodium carboxymethyl cellulose solution

[0062] According to parts by weight, 1.5 kg of sodium carboxymethyl cellulose, 1 kg of ferrous sulfate, and 1 kg of potassium sulfate are prepared and mixed evenly. Slowly add 200 kg of tap water while stirring, turn on the steam and heat to 70°C until carboxymethyl Sodium cellulose is completely dissolved to obtain sodium carboxymethyl cellulose solution.

[0063] (3) Pr...

Embodiment 2

[0071] (1) Preparation of sodium alginate solution

[0072] A. Cut the dry kelp into pieces, soak in water for 1 hour according to the weight ratio of dry kelp: water = 1:20;

[0073] B, add sodium bicarbonate to the soaked sea-tangle, its consumption is 1% of the total weight of sea-tangle and water, stir and heat under the condition of 70 ℃ for 2 hours;

[0074] C. Pass colloid mill, press filter or centrifuge;

[0075] D, the obtained liquid is the alginic acid solution with alginic acid and mannitol as the main active ingredients;

[0076] (2) Preparation of sodium carboxymethyl cellulose solution

[0077] 1.5 kg of sodium carboxymethyl cellulose, 1 kg of ferrous sulfate, and 1 kg of potassium sulfate are prepared in parts by weight, and mixed evenly. Slowly add 200 kg of tap water while stirring, turn on the steam and heat to 70-90°C, until carboxylated Sodium methylcellulose is completely dissolved to obtain sodium carboxymethylcellulose solution.

[0078] (3) Prepar...

Embodiment 3

[0086] (1) Preparation of sodium alginate solution

[0087] A. Cut the dry kelp into pieces, soak in water for 1.5 hours according to the weight ratio of dry kelp: water = 1:22;

[0088] B, add sodium bicarbonate to the soaked sea-tangle, its consumption is 0.8% of the total weight of sea-tangle and water, stir and heat under the condition of 90 ℃ for 1 hour;

[0089] C. Pass colloid mill, press filter or centrifuge;

[0090] D, the obtained liquid is the alginic acid solution with alginic acid and mannitol as the main active ingredients;

[0091] (2) Preparation of sodium carboxymethyl cellulose solution

[0092] 1.5 kg of sodium carboxymethyl cellulose, 1 kg of ferrous sulfate, and 1 kg of potassium sulfate are prepared in parts by weight and mixed evenly. Slowly add 200 kg of tap water while stirring, turn on the steam and heat to 90°C until carboxymethyl Sodium cellulose is completely dissolved to obtain sodium carboxymethyl cellulose solution.

[0093] (3) Preparation...

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Abstract

The invention provides a method for preparing a liquid alga planting mulch. The method is characterized by comprising the following steps: 1, shearing and crushing dry kelp, and soaking in water; 2, adding sodium bicarbonate into the soaked kelp, and stirring and heating for 1-3 hours at 50-90 DEG C; 3, passing through a colloid mill, performing press filtering or centrifuging so as to obtain a liquid, that is, an alginic acid solution which takes alginic acid and mannitol as main active components; 4, uniformly mixing 3 parts by weight of sodium carboxymethylcellulose, 2 parts by weight of ferrous sulfate and 2 parts by weight of potassium sulphate, slowly adding 200 parts of tap water in the stirring state, and opening steam to heat to be 70-90 DEG C till the sodium carboxymethylcellulose is completely dissolved so as to obtain a sodium carboxymethylcellulose solution; and 5, preparing a sodium alginate solution, namely, adding the sodium carboxymethylcellulose solution, potassium humate, a small amount of OP-10, glycerol and sodium benzoate. The planting mulch prepared by using the method is biodegradable, reasonable in preparation materials, simple to produce and good in insulating property.

Description

technical field [0001] The invention belongs to the manufacturing technology of agricultural mulch, and relates to a preparation method of marine biological materials, in particular to a preparation method of liquid seaweed mulch. Background technique [0002] With the continuous advancement of agricultural modernization, the use of plastic film has become an important means to ensure high and stable agricultural production. Film mulching has important functions of water retention, fertilizer retention, heat preservation and moisture retention. Plastic film can move the planting area of ​​our country to the north by 3-5 latitudes, and generally increase crop yield by 30%-50%. The use of plastic film is also on the rise. According to statistics, its use has increased from 319,000 tons in 1991 to 1.078 million tons in 2008, an increase of three times, and its coverage area has increased from 15,000 hm in 1981. 2 Increased to 15.61 million hm in 2008 2 , increased more than 1...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/52C09K17/32C09K101/00
Inventor 王海华单俊伟矫晓阳郝晓晨
Owner 青岛海大生物集团股份有限公司
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