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A method for preparing machine-transplanted rice seedling-raising substrate by using fermented rice straw as raw material

A technology for raising rice seedlings and fermented products, which is applied in the field of machine-transplanted rice seedling raising substrates and its preparation, which can solve the problems of large amount of nutrient soil, large operating machinery load, difficult degradation of substrates, and high cost, and achieves reduced irrigation times and low-cost methods , the effect of avoiding pollution

Active Publication Date: 2020-04-21
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 fermented rice straw as raw material
  • A method for preparing machine-transplanted rice seedling-raising substrate by using fermented rice straw as raw material
  • A method for preparing machine-transplanted rice seedling-raising substrate by using fermented rice straw as raw material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Example 1: Preparation of rice seedling-raising substrate by single bacterial agent fermentation + biocontrol bacteria

[0031] Such as figure 1 As shown, the mixture of rice stalks and fresh pig manure was fermented with beneficial bacteria to prepare organic fertilizer. The organic fertilizer was used as the main material, and auxiliary materials and activated solid biocontrol agents were added to prepare rice seedling raising substrate. The specific steps were as follows:

[0032] (1) Preparation of bacterial agent: Trichoderma viride, Aspergillus niger and Bacillus subtilis are beneficial bacteria for aerobic fermentation. 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, 37°C for 2 days;

[0033](2) Rice stalk fermentation: static aerobic high-temperature composting is carried out on the cement floor of the greenhouse, and ...

Embodiment 2

[0051] Example 2: Two-component compound bacterial agent + biocontrol bacteria prepare rice seedling-raising matrix

[0052] In the following steps, unless otherwise specified, the same method as in Example 1 was used for processing.

[0053] (1) Preparation of bacterial agents: Saccharomyces cerevisiae, Trichoderma viride, and Aspergillus niger were cultivated with potato dextrose liquid medium at 180 rpm and 28°C for 5 days; Bacillus subtilis was cultivated with beef extract peptone liquid medium at 180 rpm / min and cultured at 37°C for 2 days.

[0054] (2) Rice stalk fermentation: three inoculum treatment groups, namely Bacillus subtilis + Saccharomyces cerevisiae group, Trichoderma viride + Aspergillus niger group, Aspergillus niger + Saccharomyces cerevisiae group, the inoculum inoculation amount was 0.1% of the stacking mass %, 0.4%, 1.0%, ferment according to the method described in Example 1, when the temperature of rice straw and pig manure fermented product drops to...

Embodiment 3

[0071] Example 3: Fermenting rice stalks with six-component compound bacterial agents to prepare rice seedling-raising substrates

[0072] (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 machine-transplanted rice seedling raising substrate by taking a rice straw fermentation product as a raw material. According to the preparation method, rice straw wastes are used as a raw material and are fermented by using a variety of beneficial microorganisms for 40-60 days to obtain a microbial organic fertilizer which is used for preparing the rice seedling raising substrate together with perlite, vermiculite, peat, a water retention agent and biocontrol bacteria in proportion, and the substrate is small in volume weight, is convenient to carry, is good in water holding capacity to reduce the irrigation frequency and reduce the water consumption, and has rich nutrient substances to avoid additional fertilizer in the whole seedling raising period; rice seedlings come out neatly and are high in root system activity coefficient; and the substrate is low in cost and strong in compatibility with a machine-transplanting technology, and can not only reduce the usage amount of paddy field soil, but also avoid the risk of causing pollution to the environment due to improper treatment of straws.

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 fermented rice straw as a raw material 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 suitable for the growt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G24/10A01G24/15A01G24/20A01G24/22A01G24/35C05G3/00C05G3/60C05F17/00A01G31/00C12N1/14C12R1/645
CPCA01G24/00A01G31/00C05D1/00C05F17/00C05G3/00C12N1/14C05D9/00C05F3/00C05F11/00C05F11/08Y02W30/40
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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