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Plant growth promoting bio-organic fertilizer for saline-alkali land

A bio-organic fertilizer and saline-alkali land technology, applied in the field of microorganisms, can solve problems such as no literature reports, and achieve the effects of being conducive to sustainable development, promoting plant growth, and preventing soil compaction

Active Publication Date: 2015-05-13
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0012] So far, no literature reports related to the subject of the present invention have been found

Method used

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  • Plant growth promoting bio-organic fertilizer for saline-alkali land

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Embodiment Construction

[0031] Below in conjunction with embodiment the present invention will be further described.

[0032] (1) Bacteria production

[0033] 1) Inoculate Trichoderma aculeatus 12 into the PDA culture medium for liquid fermentation production. The conditions for the fermentation production are as follows: the initial pH range is 6.5-7.2, the culture temperature is 25-30°C, and the dissolved oxygen ventilation range is 30-100 %, 170rpm, the mycelial balls are all broken into mycelial fragments in the late stage of fermentation, and the colony forming units of the fermentation broth strains are ≥1×10 8 cfu ml -1 The preparation method of the PDA culture medium used is (take the preparation of 1L medium as an example): peel 100 g of potatoes, cut into small pieces and put them in water to boil, boil for 30 minutes after boiling, add 5g of ordinary sucrose to the filtrate after filtering and 2g of rice straw powder, the volume was adjusted to 1000 ml, the pH value was natural, and ster...

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Abstract

The invention discloses plant growth promoting bio-organic fertilizer for saline-alkali land, and belongs to the technology of soil improvement. The bio-organic fertilizer produced by fermenting agricultural organic solid wastes through microbial strains can increase the survival rate and promote growth of salt-tolerant plants planted in mud-flat soil and increases a soil fertility improvement speed and speeds up an improvement progress. Compost is subjected to secondary fermentation by trichoderma asperellum 12 and bacillus subtilis D9, wherein the content of trichoderma asperellum 12 in a product is larger than or equal to 0.2*10<8> cfu (colony forming unit) g<-1>, the content of bacillus subtilis D9 in the product is larger than or equal to 0.5*10<8> cuf g<-1>, a pH value is 5.5, the mass ratio of the water content is smaller than or equal to 30% and the mass ratio of organic matter content is larger than or equal to 45%. An experiment indicates that compared with treatment without application of the bio-organic fertilizer, the biomass of salt-tolerant plants including suaeda galuce, cyperus malaccensis and kochia scoparia planted in soil is increased by 49.1%, 56.3% and 52.2 respectively after the bio-organic fertilizer is applied to the mud-flat saline-alkali soil.

Description

technical field [0001] The invention relates to a saline-alkali soil growth-promoting bio-organic fertilizer, which belongs to the technical field of microorganisms. Background technique [0002] my country has a continental coastline of 18,000 kilometers. A large amount of tidal flat land is formed due to sediment deposition. The high-quality development of tidal flat soil can provide a large amount of agricultural land and bring huge economic and ecological benefits to the society. [0003] The main method of improving tidal flat saline-alkali land is to plant salt-tolerant plants through ditch drainage, which is conducive to water infiltration and accelerates desalination. Since most tidal flats are used to elute the fresh water of soil salinity, mainly rely on precipitation, and precipitation is mainly concentrated in the summer from June to August, a large amount of precipitation in a short period of time, if the vegetation in saline-alkali tidal flat soil is less, most...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05F17/00C05G3/80
CPCY02W30/40
Inventor 陈立华邵孝侯温扶辉金秋拉非塔法
Owner HOHAI UNIV
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