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A kind of preparation method of machine-transplanted rice seedling raising substrate

A seedling-raising substrate and machine-transplanted rice technology, which is applied in the field of rice seedling raising and agricultural waste utilization, can solve the problems of large amount of nutrient soil and operating machinery load, difficult degradation of the substrate, poor water retention, etc., and achieve reduced irrigation times and good water retention , the effect of avoiding pollution

Active Publication Date: 2020-03-31
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 at 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 kind of preparation method of machine-transplanted rice seedling raising substrate
  • A kind of preparation method of machine-transplanted rice seedling raising substrate
  • A kind of preparation method of machine-transplanted rice seedling raising substrate

Examples

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Effect test

Embodiment 1

[0030] Example 1 Preparation of Phomopsis HQ285146 Biocontrol Agent

[0031] (1) Grind the sun-dried corn with a pulverizer and pass it through a 20-mesh sieve. Mix the obtained corn flour with phosphate buffer at a mass ratio of 1~2, stir at room temperature for 180 minutes, and let stand for 2 days. Collect solid-phase corn flour and corn flour extract for later use.

[0032] (2) The biocontrol bacterium Phomopsis HQ285146 was activated and cultivated on the potato glucose slope for 3 days, inoculated into the potato glucose liquid medium and cultured for 4 days to obtain the seed liquid, and then the seed liquid was cultured at a volume ratio of 1% for 6 days to obtain the cultured liquid, spare.

[0033] (3) Mix the culture solution of step (2) with the extract of corn flour at a volume ratio of 1:9 to obtain a liquid biocontrol agent with a viable count of 10 billion / ml; mix the culture solution of step (2) with corn flour According to the mass ratio of 1:5, the solid b...

Embodiment 2

[0035]Static aerobic high-temperature composting is carried out on the cement floor of the greenhouse. In this embodiment, two experimental groups are set up, one group is added with probiotics, and the other group is not added with probiotics. Add fermented probiotics to 1000 kg of rice straw with a length of 3 cm. The fermented probiotics are composite bacteria of Aspergillus niger and Saccharomyces cerevisiae. The volume ratio of each component of the composite bacteria is 1:1. %, use fresh pig manure with a moisture content of 80% to adjust the C / N of the compost material to 27, and adjust the moisture content to 70% at the same time, stack the material into a stack with a height of 1.5m and a diameter of 2m, and carry out aerobic high temperature for 50 days For fermentation, turn the compost every 2 days in the first 30 days of composting, and add an appropriate amount of water to maintain sufficient moisture content, and turn the compost every other week in the later sta...

Embodiment 3

[0038] Static aerobic high-temperature composting was carried out on the cement floor of the greenhouse. Add fermented probiotics to 1500 kg of peanut straw with a length of 4 cm. Trichoderma viride is selected as the fermented probiotics. The inoculation amount of the probiotics is 0.6% of the stacking weight. The C / N of the compost material is adjusted to 27 with chicken manure. The moisture content is 65%, and the piles are stacked into piles with a height of 2m and a diameter of 3m, and aerobic high-temperature fermentation is carried out for 40 days. The pile is turned every 2 days for the first 30 days of composting, and an appropriate amount of water is added to maintain sufficient moisture. Moisture content, in the later stage of composting, turn the compost once every other week, and mix the materials evenly. When the temperature of the peanut straw and chicken manure fermented product drops to the ambient temperature, and the color is brown and has no odor, the stack...

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Abstract

The invention discloses a preparation method of a mechanical transplanting rice seedling raising substrate, and especially relates to applications of a biological agent. According to the preparation method, straw waste is taken as a raw material, fermentation with a plurality of beneficial microorganisms is carried out for 40 to 60 days, an obtained microbial organic fertilizer is mixed with perlite, vermiculite, peat, and a water-retaining agent at a certain ratio so as to prepare a rice seedling raising substrate, and the biological agent phomopsis HQ285146 prepared from corn flour is added. The obtained mechanical transplanting rice seedling raising substrate is light in volume-weight, is convenient to carry, is excellent in water-retaining property, is capable of reducing irrigation times, saving water, and is abundant in nutrients; no extra topdressing is needed in the whole rice seedling raising process; obtain seedlings are uniform; root system activity coefficient is high; cost is low; compatibility with mechanical transplanting technology is high; using amount of paddy soil is reduced; and environment pollution caused by improper treatment of straw is avoided.

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): C05G3/00C05G3/60A01G24/15A01G24/10A01G24/22A01G24/20A01G31/00A01G22/22
CPCA01G22/22A01G24/00A01G31/00C05D1/00C05G3/00C05D9/00C05F3/00C05F11/00C05F11/08C05F17/00
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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