Modified coconut tree branny culture substrate and preparing method thereof

A technology of cultivation substrate and coconut peat, which is applied in the field of preparation of modified coconut peat cultivation substrate, can solve the problems of coconut peat fiber not up to the use standard, high investment in mechanical equipment, and large environmental pollution, so as to promote rapid and efficient circulation Utilization, short time-consuming, and simple preparation process

Inactive Publication Date: 2011-10-05
COCONUT RES INST OF CHINESE ACAD OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The mechanical method mainly uses mechanical shear force to crush the coconut peat, but the coconut peat fiber after mechanical crushing often does not meet the use standard, and the investment in mechanical equipment is high; the chemical treatment method is to soak the coconut peat and add strong acid The disadvantage of this method is that the consumption of acid and alkali is very large, and the second is that the waste liquid is highly corrosive and pollutes the en

Method used

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  • Modified coconut tree branny culture substrate and preparing method thereof
  • Modified coconut tree branny culture substrate and preparing method thereof

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Experimental program
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Effect test

Embodiment 1

[0030] 1. Raw material pretreatment Dried coconut peat at 60°C, crushed, and sieved to make a material with a length of 4-7mm; at the same time, spread out the river sand, sterilize it in the sun for 6 hours, and pass through a 20-mesh sieve; another option is 883Fr2 type Peat (white block, pH6.0), 2-4mm vermiculite (milky white), set aside.

[0031] 2. Modification Add clear water to the coconut bran prepared above according to 1:30 (m / v), so that the coconut bran is completely immersed in water, stir evenly, and swell for 2 hours; Add acid cellulase (10000IU / g) in proportion, adjust pH to 4.5 with sulfuric acid, enzymolyze for 32 hours, stir once every 2 hours during enzymolysis; then add hemifiber according to the ratio of enzyme activity to coconut bran weight ratio of 24IU / g Sulfase (8000IU / g), enzymatic hydrolysis for 8 hours; then add sodium carbonate to adjust the pH to 8.0-9.0, raise the temperature to 70°C, keep for 3 hours to inactivate the enzyme, and obtain the cr...

Embodiment 2

[0041] 1. Raw material pretreatment Dry coconut peat at 50°C, crush, and sieve to make a material with a length of 4-6mm; at the same time, sieve, sun-dry, and sterilize perlite (with a particle size of 8-12mm); peat ( brownish yellow, pH5.6), for later use.

[0042] 2. Modification Add clear water to the coconut bran prepared above according to 1:20 (m / v), so that the coconut bran is completely immersed in water, stir evenly, and swell for 3 hours; Add acid cellulase (10000IU / g) in proportion, adjust the pH to 4.5 with hydrochloric acid, enzymolyze at room temperature for 48 hours, stir once every 3 hours during enzymolysis; then add according to the ratio of enzyme activity to coconut bran weight ratio of 16IU / g Hemicellulase (8000IU / g), enzymatic hydrolysis at room temperature for 12 hours; then add sodium carbonate to adjust the pH to 9.0, raise the temperature to 70°C, keep for 2 hours to inactivate the enzyme, and obtain crude coconut peat enzymatic hydrolysis liquid.

...

Embodiment 3

[0049] 1. Raw material pretreatment Dry coconut peat at 60°C, crush, and sieve to make a material with a length of 4-6mm; at the same time, spread out the river sand and perlite, sun-dry, sterilize, and sieve; another peat is taken (white block, pH6.0), ready for use after pretreatment.

[0050] 2. Modification Add clear water to the coconut bran prepared above according to 1:40 (m / v), so that the coconut bran is completely immersed in water, stir evenly, and swell for 2 hours; Add acid cellulase (20000IU / g) in proportion, adjust pH to 4.5 with sulfuric acid, enzymolyze for 32 hours, stir once every 2 hours during enzymolysis; Sulfase (8000IU / g), hydrolyze for 12h; then add sodium carbonate to adjust the pH to 8.0-9.0, raise the temperature to 70°C, keep for 3h to inactivate the enzyme, and obtain the crude coconut peat enzymolysis liquid.

[0051] 3. Drying and grading The modified coconut peat can be obtained by filtering, drying, pulverizing and grading the coconut peat en...

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Abstract

The invention disclosed a modified coconut tree branny culture substrate and a preparing method thereof. The preparing method of the modified coconut tree branny culture substrate comprises the steps of: crushing and screening coconut tree branny, and adding clear water for swelling; then adding acid cellulase and hemicellulase in sequence for enzymolysis to prepare a crude coconut tree branny enzymolytic solution; filtering, drying and crushing the crude coconut tree branny enzymolytic solution to prepare modified coconut tree branny; and disinfecting and evenly mixing the modified coconut tree branny, an inorganic substrate and an organic substrate according to a proportion, adjusting the pH value and then drying and packaging so that the modified coconut tree branny culture substrate can be obtained. The modified coconut tree branny culture substrate disclosed by the invention has a simple preparation process and low cost, and is prepared by consuming short time; and the enzymolysis method is utilized to modify the fibers of coconut tree branny so as to prepare the modified coconut tree branny culture substrate, thus the sponginess, air permeability, water-retaining property, thermal insulating property and moisture retention property of the culture substrate are all improved remarkably, the application range of the coconut tree branny culture substrate is widened simultaneously, and the coconut tree branny culture substrate is applicable to culture of various plants, can meet the needs of fast development of the modern culture substrate industry, is beneficial to generation of good economic benefit, ecological benefit and social benefit, and has a good promotion prospect.

Description

technical field [0001] The invention belongs to the technical field of plant soilless cultivation, and relates to the preparation of a modified coconut bran cultivation substrate, in particular to a technology of using coconut bran as a raw material and adding other base materials after modification to produce the cultivation substrate. technical background [0002] Soilless culture has been rapidly developed and promoted since the 1930s, and has been widely used in horticulture, plant container cultivation, agricultural production and other fields. Cultivation medium is the method with the largest promotion area in soilless cultivation. It has the advantages of strong buffer capacity, strong adaptability, wide promotion area, reasonable nutrition, simple equipment and low cost. Soil cultivation form. China is the world's largest protected horticulture country, with a protected horticultural cultivation area of ​​200,000 hm 2 above, but the national soilless cultivation ar...

Claims

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Application Information

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IPC IPC(8): A01G31/00
Inventor 李艳郑亚军刘立云赵松林雷新涛唐龙祥陈思婷杨伟波
Owner COCONUT RES INST OF CHINESE ACAD OF TROPICAL AGRI SCI
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