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A method for preparing machine-transplanted rice seedling-raising substrate by using decomposed corn stalks as raw material

A technology for raising decomposed corn stalks and rice seedlings, which is applied in the direction of planting substrates, botany equipment and methods, and culture media. It can solve the problems of nutrient soil consumption, large operating machinery load, difficult substrate degradation, and poor water retention, so as to reduce irrigation. The frequency and method are low cost and the effect of water retention is good

Active Publication Date: 2020-02-07
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent CN201510826235.0 discloses a machine-transplanted rice seedling-raising substrate with decomposed rice straw as raw material and its preparation method. The preparation method is to mix decomposed rice straw powder made of rice straw added with rotting stalk agent and paddy field soil evenly to obtain Rice seedling-raising matrix, which is composed of rice straw powder with a volume ratio of 66.67% and paddy field soil of 33.33%, but the seedling-raising matrix is ​​mixed with a large amount of paddy field soil, which has not yet solved the problems of large amount of nutrient soil, heavy operating machinery load, and fast wear; Patent CN200910029966.7 discloses the machine-transplanted rice seedling-raising substrate and its production method. Organic waste such as straw is used as raw material, fermented by various beneficial microorganisms, and the rice seedling-raising substrate is formulated with slow-release fertilizers, binders, and water-retaining agents. The invention has disadvantages such as complex process, high cost, and substrate containing non-degradable substances; patents CN201110095150.1, CN201310756272.X, CN201610246156.7 and Zhao Qingsong have respectively studied rice seedling raising with vinegar grains, enoki mushrooms, and industrial waste as raw materials Substrate mechanized seedling raising technology, but there are still problems such as complicated technology, high cost, poor water retention, light weight, easy to shake, and difficult machine transplanting

Method used

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  • A method for preparing machine-transplanted rice seedling-raising substrate by using decomposed corn stalks as raw material
  • A method for preparing machine-transplanted rice seedling-raising substrate by using decomposed corn stalks as raw material
  • A method for preparing machine-transplanted rice seedling-raising substrate by using decomposed corn stalks as raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Example 1: Preparation of rice seedling-raising substrate by single bacterial agent fermentation + biocontrol bacteria

[0032] like figure 1 As shown, the organic fertilizer is prepared by fermenting the mixture of corn stalks and dry cow dung with beneficial bacteria, using organic fertilizer as the main material, adding auxiliary materials and activated solid biocontrol agents to prepare rice seedling raising substrate, the specific steps are as follows:

[0033] (1) Preparation of bacterial agents: Trichoderma viride and Bacillus subtilis are beneficial bacteria for aerobic fermentation. Trichoderma viride was cultured in potato glucose liquid medium at 180 rpm and 28°C for 5 days; Bacillus subtilis was cultured in beef extract peptone liquid medium at 180 rpm and 37°C for 2 days;

[0034](2) Composting of corn stalks and cow dung: Static aerobic high-temperature composting is carried out on the cement floor of the greenhouse, and 1000 kg of dry corn stalks are add...

Embodiment 2

[0052] Example 2: Preparation of rice seedling-raising matrix by three-component compound bacterial agent + biocontrol bacteria

[0053] In the following steps, unless otherwise specified, the same method as in Example 1 was used for processing.

[0054] Preparation of bacterial agents: Saccharomyces cerevisiae, Trichoderma viride, and Aspergillus niger were cultured in potato glucose liquid medium, 180 rpm, 28°C for 5 days; Bacillus subtilis was cultured in beef extract peptone liquid medium, 180 rpm, Incubate at 37°C for 2 days.

[0055] Corn stover and cow manure composting: two microbial treatment groups, Trichoderma viride + Aspergillus niger + Bacillus subtilis, Aspergillus niger + Bacillus subtilis )+Saccharomyces (Saccharomyces) group, the inoculum inoculation amount is 1.0%, 0.1% of the stacking mass successively, ferment according to the method described in Example 1, when the corn stalk and cow dung fermentation product temperature drops to ambient temperature, the...

Embodiment 3

[0073] Example 3: Fermenting corn stalks with six-component compound bacterial agents to prepare rice seedling-raising substrates

[0074] (1) Preparation of inoculum: two inoculum treatment groups are set up altogether, one group is the treatment group not inoculated with inoculum, and the other is the treatment group inoculated with liquid fermentation inoculum; the preparation and inoculation methods of liquid fermentation inoculum are : Saccharomyces cerevisiae, Trichoderma viride, and Aspergillus niger were cultured in potato glucose liquid medium at 180 rpm and 28°C for 5 days, and Acinetobacter, Bacillus subtilis, and Bacillus thuringiensis were cultured in beef extract peptone liquid medium at 180 rpm / min and cultured at 37°C for 2 days. Centrifuge the six kinds of bacterial solutions at 5000 rpm, remove the supernatant, wash the bacterial cells three times with a phosphate buffer solution with a pH of 7, and then suspend the bacterial cells with 1 liter of phosphate ...

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Abstract

The invention discloses a method for preparing a seedling cultivation medium for mechanically-transplanted rice from decomposed corn straw. The method includes using corn straw wastes and dry cattle manure as the raw materials, subjecting the raw materials to fermentation by various beneficial microorganisms for 40-60 days, and proportionally mixing a obtained microbial organic fertilizer with perlite, vermiculite, peat, a water-retaining agent and biocontrol bacteria to obtain the seedling cultivation medium. The method has the advantages that the prepared seedling cultivation medium is low in unit weight, convenient to carry, good in water retaining performance, rich in nutritional substances, low in cost, highly compatible with the mechanical rice transplanting technology and capable of reducing irrigation times, water consumption and rice field soil consumption, allowing seedlings to be neat and high in root activity coefficient and avoiding the risks of environment pollution caused by inappropriate treatment of the corn straw, and does not need extra topdressing in the whole seedling cultivation process.

Description

technical field [0001] The invention belongs to the fields of rice seedling raising and utilization of agricultural waste, and in particular relates to a machine-transplanted rice seedling raising substrate using corn stalks and cow dung fermented products as raw materials and a preparation method thereof. Background technique [0002] With the development of society and economy, the transfer of rural labor force and the aging of rural labor force, there is an urgent need for rice mechanized production technology based on machine transplanting. Machine transplanting has the advantages of reducing labor intensity, saving seedling beds, saving labor, high and stable production, cost saving and efficiency enhancement, etc. It is useful for developing large-scale rice farming, promoting labor transfer, improving labor productivity and land productivity, stably developing food production, and promoting my country's modern agriculture. development matters. Cultivating a substrate ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/60C05G3/80A01G24/22A01G24/20A01G24/15A01G24/10A01G24/35A01G24/25
CPCA01G24/00C05D9/00C05G3/00C05G3/80C05F3/00C05F11/00C05F11/02C05F11/08
Inventor 孙旭赵志强蔡金傍赵克强张龙江苏良湖陈玉东刘臣玮陈梅
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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