Organic seaweed fertilizer and application thereof used as efficient saline soil conditioner

A kind of seaweed fertilizer and organic technology, applied in the field of organic seaweed fertilizer, can solve the problems of not being able to be used in time, difficult to decompose and use, and environmental pollution, etc., and achieve the effects of enhancing saline-alkali resistance, low production cost, and improving soil aggregate structure

Inactive Publication Date: 2012-04-11
UNIV OF SHANGHAI FOR SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The waste residue after extracting sodium alginate, iodine, mannitol and alginate from seaweed contains a large amount of substances that are difficult to decompose and utilize. At p

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1

[0024] Mix 70% of seaweed residue from fresh kelp chemical industry with 29% distiller's grains, add water to 40-80% of the content, inoculate the active ingredient is a mixture of actinomycetes and yeast, and the inoculation amount is seaweed 0.5‰ of the dry weight of the compound of slag and distiller's grains, after inoculation, the micro-aerobic fermentation of the compost is carried out, and the compost temperature naturally rises to 45°C, the compost is turned once every three days, and the water content is measured every 3 days to ensure that the compost contains The amount of water is 80%. The fermentation time is 18 days. After the pile temperature drops to room temperature, sun-dried, crushed and passed through a 10×10mm sieve, the organic seaweed fertilizer of the present invention is obtained.

[0025] A kind of organic seaweed fertilizer obtained is applied to the saline-alkali land as a base fertilizer, and 1-2 tons are applied per mu. ...

Example Embodiment

[0026] Example 2

[0027] Use the seaweed dregs in the fresh kelp chemical industry, add water to the content of 40-80%, inoculate the active ingredient is a mixture of two bacteria, actinomycetes and yeast, and the inoculation amount is 7‰ of the dry weight of seaweed dregs. Afterwards, carry out micro-aerobic fermentation of the compost. When the temperature of the compost naturally rises to 50°C, turn the compost once every two days, and measure the water content every 3 days to ensure that the water content of the compost is 50% during the high temperature period. Ferment for 26 days, and wait for the temperature of the compost to drop. After reaching room temperature, dry at 70° C., pulverize and pass through a 10×10 mm sieve to obtain an organic seaweed fertilizer of the present invention.

[0028] Apply the obtained organic seaweed fertilizer and phosphogypsum in a ratio of 10:1 to the saline-alkali land, and apply 1 to 2 tons per mu. After fertilizing, plant cot...

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PUM

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Abstract

The invention discloses a seaweed fertilizer and an application thereof used as the efficient saline soil conditioner, wherein the seaweed fertilizer is an organic seaweed fertilizer obtained by fermenting and decomposing seaweed industrial wastes through a microaerophilic fermentation technology, or a composite organic seaweed fertilizer obtained by complexing the obtained organic seaweed fertilizer with one or more of wheat bran, straw, traditional Chinese medicine residues, fruit residues, activated sludge and vinasse. The application of the organic seaweed fertilizer is that the organic seaweed fertilizer is used as the base fertilizer or additional fertilizer to be directly applied in saline soil or applied in saline soil along with additives and the dosage is 1-2 tons per mu. Used as the saline soil conditioner, the seaweed fertilizer disclosed by the invention can not pollute the environment, can be used to directly increase the organic matter in soil or increase the organic matter through plants and can activate various beneficial microorganisms in soil, thus plant cell division can be promoted, the photosynthetic efficiency can be increased and the salt resistance and alkali resistance of crops can be enhanced. By using the the seaweed fertilizer, the crumb structure of soil can be promoted and improved, the pore space in soil can be improved, the biological activity of soil can be increased, the buffer property to acid and alkali, nutrient conservation and water conservation of soil can be increased and the production cost is low.

Description

technical field [0001] The invention relates to an organic seaweed fertilizer and its application as a high-efficiency saline-alkaline soil improver. Background technique [0002] Seaweed is a low-level photosynthetic nutrient plant that grows in the ocean and is the original producer of marine organic matter. Because it grows in the special environmental medium of seawater, it not only contains the nutrients that land plants have, but also contains trace elements such as iodine, potassium, magnesium, manganese, titanium and seaweed polysaccharides, which are not found in many land plants. Mannitol, etc. The application of seaweed or seaweed extracts in foreign countries has done comparative experiments on a series of crops, and it has had obvious effects on crops in terms of increasing yield, improving quality, and resisting diseases and insect pests. [0003] At present, scholars at home and abroad mainly conduct research on the utilization of fresh seaweed, and there ar...

Claims

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Application Information

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IPC IPC(8): C05G3/04C09K17/40C09K109/00C05G3/80
Inventor 张淑平周楠刘晓慧李悦胡晓建
Owner UNIV OF SHANGHAI FOR SCI & TECH
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