Corn stalk compound substrate and preparation method thereof

A technology of corn stalks and composite substrates, which is applied in planting substrates, botany equipment and methods, culture media, etc., can solve the problems of high transportation costs, large investment, and difficult sources of materials, so as to protect the ecological environment, save natural resources, Highly repeatable effect

Active Publication Date: 2017-01-04
河南省农业科学院园艺研究所
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of relatively large investment in existing soilless culture substrates in my country, difficult source of materials, and high transportation costs, the present invention provides a composite substrate that uses corn stalks as raw materials and is suitable for vegetables. Optimizing the ratio, regulating the physical and chemical properties, and the influence of the matrix formula on the growth and development of vegetables, etc., screened out an optimal organic composite matrix formula of corn stalks

Method used

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  • Corn stalk compound substrate and preparation method thereof
  • Corn stalk compound substrate and preparation method thereof
  • Corn stalk compound substrate and preparation method thereof

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preparation example Construction

[0064] The preparation method of the corn stalk composite matrix includes: crushing, using a high-efficiency pulverizer to crush the corn stalks into particles with a particle size of 0.1-0.5 cm, so as to facilitate subsequent stacking and decomposing; configuring a solution, preparing 1.8-2.0 times the weight of the straw water, add 0.5-0.8% urea accounting for the weight fraction of the straw in the water to adjust the carbon-nitrogen ratio; When the corn stalks are suitable for decomposing; for stacking, the corn stalks are stacked into stacks with a width of 2 meters and a height of 1.5 to 1.6 meters, and they are sealed tightly with plastic film; turn over, after the temperature reaches 50°C, turn over once every 7 days in summer and 8 days in winter. Turn the pile once every 12 days, replenish the solution to maintain the water content, and it takes 25-32 days in summer to make the corn stalks black, bad, and the fibers are softened and degraded to become decomposed, and ...

Embodiment 1

[0093] The preparation method of the corn stalk composite matrix includes: crushing, using a high-efficiency grinder to crush the corn stalks into particles with a particle size of 0.3 cm, so as to facilitate subsequent stacking and decomposing; configuring a solution, preparing water 2.0 times the weight of the straw, and Add 0.0.8% urea to the water to adjust the carbon-to-nitrogen ratio; add the solution, pour the prepared solution into the granular corn stalks, so that the water content of the corn stalks is 65%. At this time, the corn stalks are suitable Decomposing; stacking, stacking corn stalks into stacks with a width of 2 meters and a height of 1.5 to 1.6 meters, and sealing them tightly with plastic film; turning the piles, supplementing the solution to maintain water content, making the corn stalks black, bad, and fibers softened and degraded That is, it is decomposed; for disinfection, add 60 grams of trichlorfon and 100 grams of carbendazim to each cubic meter of ...

Embodiment 2

[0105] The following will compare tomato seedlings in terms of fresh weight above ground, fresh weight below ground, dry weight above ground, dry weight below ground, stem diameter, plant height, seedling strength index, chlorophyll content, and root activity.

[0106] The composite substrate of the present invention is verified by tomato planting. Through experiments, the influence of the corn stalk composite substrate of the present invention on the growth of tomato seedlings is shown in Table 2.

[0107] Table 2 The effect of corn straw composite substrate on the growth of tomato seedlings

[0108]

[0109]

[0110] It can be seen from Table 2 that when the composite matrix of corn stalk: river sand (volume ratio) = 8:2 was compared with the composite matrix of peat: vermiculite (volume ratio) = 2:1 on the growth of tomato seedlings, the aboveground fresh Corn stalks: river sand (volume ratio) = 8:2 composite matrix Both are higher than peat: vermiculite (volume rati...

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Abstract

The invention discloses a corn stalk compound substrate suitable for soilless culture of vegetables and a preparation method thereof. The compound substrate comprises 8 volume parts of corn stalks and 2 volume parts of river sand. Various indexes of the compound substrate disclosed by the invention meet requirements on growth and development of the vegetables and reach a standard of soilless culture substrates; organic components account for about 80%, the service life reaches 2-5 years or longer, and the cost of the corn stalk compound substrate is reduced by 60-80% compared with that of conventional substrates, for example, 80% compared with that of rock wool, 75% compared with that of vermiculite, 75% compared with that of cocoanut shells, 70% compared with that of grass carbon, and 60% compared with that of perlite. The corn stalk compound substrate achieves recycling of stalks, saves natural resources, and provides an effective development outlet for protection of ecological environments.

Description

technical field [0001] The invention belongs to the field of agricultural and horticultural vegetables, specifically relates to the technical field of soilless cultivation of vegetables, in particular to a corn stalk composite substrate suitable for soilless cultivation of vegetables and a preparation method thereof. Background technique [0002] Substrate cultivation is an important form of soilless cultivation, and now most countries use substrate cultivation for soilless cultivation of fruits and vegetables. At present, rock wool and peat are recognized as ideal cultivation substrates in the world, but rock wool cannot be degraded after use and will pollute the environment, while peat resources are limited and belong to the national wetland protection category. At present, a lot of research on using substrates instead of nutrient soils for crop seedlings has been carried out in China. The crop seedling substrates are basically peat, vermiculite, and perlite, mixed with ni...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G31/00
CPCA01G24/00Y02P60/21
Inventor 王晋华赵肖斌米国全程志芳韩永平史艳艳李晓慧牛屹立
Owner 河南省农业科学院园艺研究所
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