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Horticultural crop composite biological nutrient medium and preparation method thereof

A nutrient base and biological technology, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve problems such as unfavorable seedling growth and development, nutrient base is easy to harden, and water retention is poor, so as to improve soil physical and chemical properties, reduce diseases and insect pests, and promote effect

Inactive Publication Date: 2012-06-20
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problems of this nutrient base are: poor water retention, easy compaction of the nutrient base, poor ventilation, which is not conducive to the growth and development of seedlings

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The matrix of complex biological nutrient base for horticultural crops consists of the following quality components:

[0024] Sodium alginate: 1.5%;

[0025] Chitin: 1.0%;

[0026] Polyacrylamide: 2.0%;

[0027] Sodium carboxymethyl cellulose: 1.5%;

[0028] Shell powder: 15%;

[0029] Clay: 79.0%.

[0030] Use BG-1 medium as the culture medium to cultivate the chlorella screened by autotrophy, heterotrophy and polyculture in the photobioreactor, and cultivate the screened chlorella to the late stage of exponential growth, and its concentration can reach 3.0× 10 7 cell / ml.

[0031] The preparation method of the above-mentioned composite biological nutrient base: according to the above ratio, determine the amount of shell powder, then sequentially add sodium alginate, chitin, sodium carboxymethylcellulose and polyacrylamide; after mixing the above components evenly, and then mix with Mix the filled clay, stir well, put it in a lined container (usually waste newspa...

Embodiment 2

[0034] The matrix of complex biological nutrient base for horticultural crops consists of the following quality components:

[0035] Sodium alginate: 5.0%;

[0036] Chitin: 0.5%;

[0037] Polyacrylamide: 3.0%;

[0038] Sodium carboxymethyl cellulose: 2.5%;

[0039] Shell powder: 20%;

[0040] Clay: 69%.

[0041] BG-1 medium was used as the culture medium to cultivate Chlorella to the late stage of exponential growth, and the concentration of Chlorella reached 3.0×10 6 above cell / ml.

[0042] The preparation method of the above-mentioned composite biological nutrient base: according to the above ratio, determine the amount of shell powder, then sequentially add sodium alginate, chitin, sodium carboxymethylcellulose and polyacrylamide; after mixing the above components evenly, and then mix with Mix the filled clay, stir well, put it in a lined container (usually waste newspaper or absorbent paper, etc.) as soon as possible, and compact it; then pour the chlorella and its c...

Embodiment 3

[0044] The matrix of complex biological nutrient base for horticultural crops consists of the following quality components:

[0045] Sodium alginate: 5.5%;

[0046] Chitin: 3.5%;

[0047] Polyacrylamide: 5.5%;

[0048] Sodium carboxymethyl cellulose: 5%;

[0049] Shell powder: 20%;

[0050] Clay: 60.5%;

[0051] BG-1 medium was used as the culture medium to cultivate Chlorella to the late stage of exponential growth, and the concentration of Chlorella reached 3.0×10 6 above cell / ml.

[0052] The preparation method of the above-mentioned composite biological nutrient base: according to the above ratio, determine the amount of shell powder, then sequentially add sodium alginate, chitin, sodium carboxymethylcellulose and polyacrylamide; after mixing the above components evenly, and then mix with The clay is mixed evenly; the matrix of the nutrient base composed of the above ingredients is mixed with the soil at a mass percentage of 20%, and applied to the soil at 20cm. At ...

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Abstract

The invention relates to a horticultural crop composite biological nutrient medium which comprises a substrate, and microalgae and a culture fluid thereof. The horticultural crop composite biological nutrient medium is characterized by comprising the following components in percentage by mass: 1.5-5.5% of sodium alginate, 0.5-3.5% of chitosan, 0.5-5.5% of polyacrylamide, 1-5% of sodium carboxymethyl cellulose, 5-20% of shell powder and 60.5-91.5% of clay. The microalgae are fresh water Chlorella which can be autotrophic, heterotrophic or mixedly cultured after being cultured to later exponential growth phase, the concentration is greater than or equal to 3.0*10<6>cell / ml, and the addition amount is preferably sufficient in the substrate without flowing. The invention has the effects of moisture retention, nutrient slow release and soil improvement; most materials are aquiculture byproducts, thereby changing wastes into valuable substances and having obvious environmental protection effect; and the nutrient medium can be completely degraded within 3-5 years, and can not have permanent damage on soil. The microalgae reserved in the soil can have an active effect on the soil, increase the soil fertility and improve the physical and chemical properties of the soil.

Description

technical field [0001] The invention relates to a compound biological nutrient base for promoting the growth and development of economic plants and a preparation method thereof. Background technique [0002] Seed cultivation of plants with high economic value such as horticulture is a very important link. Excellent seed quality determines the quality of plant growth and development, and is ultimately directly related to economic output. For this reason, seedling cultivation is now carried out using proprietary seedling facilities such as seedbeds and nutrient pots. There are many factors that determine the quality of seedlings, and the most affected by human factors are the substrate used for seedling cultivation and the nutrient base mixed with the substrate. [0003] At present, most of the nutrient bases used for seed cultivation are prepared from fermented organic fertilizers supplemented with peat soil. The main problems of this kind of nutrient base are: poor water r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 李赟
Owner OCEAN UNIV OF CHINA
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