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Rice seedling culture substrate and preparation method thereof, and organic acid soil and preparation method thereof

A technology for raising seedling substrate and rice, applied in the agricultural field, can solve the problems of transportation, storage, inconvenient use, environmental pollution, unsafe operation, etc., and achieve the effects of improving the utilization rate of biotransformation, shortening the fermentation period, and improving soil vitality.

Inactive Publication Date: 2020-10-27
哈尔滨尼亚农业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The currently used method of adjusting acid usually uses concentrated sulfuric acid. Because of its strong corrosiveness and oxidizing properties, there is a risk of environmental pollution and unsafe operation when used, and it is inconvenient to transport, store and use; at the same time, this method lasts for a long time. Short, the soil pH value is maintained below 6 for only 7 to 10 days; and it is prohibited to use in rice cultivation in organic agriculture
Phosphogypsum is used for acid adjustment, but there is a risk of heavy metal pollution, and physiological fertilizers can only play an auxiliary role in acid adjustment

Method used

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  • Rice seedling culture substrate and preparation method thereof, and organic acid soil and preparation method thereof
  • Rice seedling culture substrate and preparation method thereof, and organic acid soil and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The preparation method of organic acid soil is as follows:

[0051] 1) Cultivation of Trichoderma and Aspergillus niger: Inoculate Trichoderma and Aspergillus niger into PDA medium respectively, after culturing at 28°C for 3-5 days, collect spores; inoculate spores on wheat grains, culture at 28°C for 7 days, then dry naturally in the shade Finally, crush the wheat grains for later use;

[0052] 2) Cultivation of acetic acid bacteria: 10 g of yeast extract, 10 g of glucose, 1 L of constant volume, sterilized at 121°C for 20 minutes, then added 1% absolute ethanol, 1% acetic acid, 150 rpm / min after inoculation of acetic acid bacteria, and cultured at 30°C for 24 hours;

[0053] 3) Yeast culture: 10 g of yeast extract, 10 g of peptone, 20 g of glucose, constant volume of 1 L, sterilized at 121 °C for 20 min, 150 rpm / min after yeast inoculation, and cultured at 28 °C for 24 h;

[0054] 4) Cultivation of Bacillus subtilis: 3 g of yeast powder, 5 g of sodium carboxymethyl c...

Embodiment 2

[0061] The specific operation steps are consistent with Example 1, except that the volume ratio of Trichoderma, Aspergillus niger, Bacillus subtilis, yeast and acetic acid bacteria is 1:1.5:0.5:1.5:0.5.

Embodiment 3

[0063] The specific operation steps are consistent with Example 1, except that the volume ratio of Trichoderma, Aspergillus niger, Bacillus subtilis, yeast and acetic acid bacteria is 1:2.5:1:2.5:1.

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Abstract

The invention provides a rice seedling culture substrate and a preparation method thereof, and organic acid soil. The rice seedling culture substrate is mainly composed of a complex microbial inoculant and a fermentation raw material, wherein the fermentation raw material comprises vinasse, bran and soybean meal, the mass ratio of the vinasse, the bran and the soybean meal is (4-8): (1-4): 1, andcomplex microbial inoculant is inoculated into the fermentation raw material according to an inoculation amount of 1-5%; and the complex microbial inoculant is mainly composed of trichoderma, aspergillus niger, bacillus subtilis, saccharomycetes and acetic bacteria. According to the rice seedling culture substrate, the vinasse is utilized and matched with other organic wastes, microorganisms are adopted for fermentation to obtain organic acid, the fermented product serves as the rice seedling culture substrate, the content of the organic acid is high, and the rice seedling culture substrate has a certain disease-resistant effect, and is subsequently mixed with seedling culture soil to serve as soil for culturing seedlings.

Description

technical field [0001] The invention relates to the field of agricultural technology, in particular to a rice seedling raising substrate and a preparation method thereof, organic acid soil and a preparation method thereof. Background technique [0002] Acid adjustment in rice seedling raising is a key production technology link, which plays a key role in seedling quality and disease control at seedling stage. The acidity of the bed soil is in the appropriate range (pH4.5-pH5.5), which is conducive to the cultivation of strong seedlings. The currently used method of adjusting acid usually uses concentrated sulfuric acid. Because of its strong corrosiveness and oxidizing properties, there is a risk of environmental pollution and unsafe operation when used, and it is inconvenient to transport, store and use; at the same time, this method lasts for a long time. Short, the time for the soil pH value to remain below 6 is only 7-10 days; and it is prohibited to use in the cultivat...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G24/20A01G24/30A01G24/10C12N1/14C12N1/16C12N1/20C12R1/02C12R1/885C12R1/685C12R1/125
CPCA01G24/20A01G24/30A01G24/10C12N1/14C12N1/16C12N1/20
Inventor 侯松青孙红瑞黄晓梅范金霞陈秀玲
Owner 哈尔滨尼亚农业有限公司
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