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Soil phosphorus activator, and preparation method, application method and application thereof

A soil phosphorus and application method technology, applied in the field of soil phosphorus activator and its preparation, can solve the problems of unstable phosphorus removal effect, inability to absorb and utilize phosphorus, agricultural non-point source pollution, etc. Phosphate fertilizer utilization rate and the effect of enhancing absorption efficiency

Active Publication Date: 2019-05-07
JIANGSU XUHUAI DISTRICT HUAIYIN AGRI SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, a large amount of phosphorus resources have accumulated in the soil, and most of these phosphorus are fixed in the soil in an invalid state and cannot be absorbed and utilized by crops.
This not only causes a huge waste of resources, but also causes serious agricultural non-point source pollution
The application of phosphorus activators in China is still limited to a few varieties, and the phosphorus-dissolving effect after agricultural production practice is also unstable

Method used

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  • Soil phosphorus activator, and preparation method, application method and application thereof

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preparation example Construction

[0019] The soil phosphorus activator provided by the invention comprises 25-60 parts by weight of Aspergillus fungus, preferably 30-50 parts, more preferably 45 parts. The present invention has no special limitation on the type of Aspergillus fungus, preferably Aspergillus fumigatus. In the present invention, the source of the Aspergillus fumigatus is not particularly limited, and conventional commercially available products can be used. Wherein, the number of effective viable bacteria of Aspergillus fungi in the soil phosphorus activator of the present invention is more than or equal to 1×10 8 CFU / g. In the embodiment of the present invention, the Aspergillus fumigatus L. is preferably Aspergillus fumigatus L., the preservation number is CGMCC: 3.8027, and it is preferably purchased from China General Microorganism Culture Collection and Management Center. In the embodiment of the present invention, the Aspergillus fumigatus is preferably added in the form of an Aspergillus...

Embodiment 1

[0042] Nano-zinc oxide powder 0.01g, Aspergillus fumigatus agent 50g, Moses stipe mold agent 30g, humic acid 10g, soybean straw powder 12g; the above-mentioned components were pulverized in a pulverizer in turn, and passed through a 150-mesh sieve; The components are fully mixed evenly to obtain the soil phosphorus activator.

[0043] Wherein, the preparation method of Aspergillus fumigatus agent:

[0044] Weigh 50.0g of Cha's medium, dissolve it in 1000mL of distilled water by heating, sterilize under high pressure at 121°C for 15 minutes, pour it into a plate; every 1000g of Cha's medium contains 3.0g of sodium nitrate, 1.0g of dipotassium hydrogen phosphate, and magnesium sulfate heptahydrate 0.5g, potassium chloride 0.5g, ferrous sulfate heptahydrate 0.01g, sucrose 30.0g and agar 15.0g;

[0045] Pick Aspergillus fumigatus A. fumigatus mycelium and inoculate it on the above-mentioned cooled plate, culture it statically at 28°C for 7 days, dry it in an oven at 40°C, and cru...

Embodiment 2

[0049] 0.01g of nano-zinc oxide powder, 25g of Aspergillus fumigatus, 45g of Phyllostachys mosesi, 10g of humic acid, and 20g of soybean straw powder; successively pulverize the above-mentioned components in a pulverizer and pass through a 150-mesh sieve; The components are fully mixed evenly to obtain the soil phosphorus activator. Among them, the effective number of viable bacteria of Aspergillus fumigatus was 5.83×10 8 CFU / g; the effective number of spores of Pheocystis moseae is 23 / g.

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Abstract

The invention provides a soil phosphorus activator, and belongs to the technical field of biological fertilizers. The soil phosphorus activator comprises, by mass, 0.01-0.1 part of group B metal oxide, 25-60 parts of aspergilli, 30-50 parts of Arbuscular mycorrhizal fungi, 8-12 parts of humic acid and 10-20 parts of bean crop straws; and the effective number of viable bacteria of the aspergilli inthe soil phosphorus activator is equal to or more than 1 * 10<8> CFU / g, and the effective number of spores of Arbuscular mycorrhizal fungi is equal to or more than 15 / g. The soil phosphorus activatorprovided by the invention can activate the phosphorus in wheat field soil, reduce the solidification of phosphorus to unavailable phosphorus, stimulate the absorption of the surrounding phosphorus bywheat roots, increase the utilization rate of a phosphorus fertilizer, reduce the application of the phosphate fertilizer and ensure the stable yield and the yield increase of wheat.

Description

technical field [0001] The invention belongs to the technical field of biological fertilizers, and in particular relates to a soil phosphorus activator and its preparation method, application method and application. Background technique [0002] Rice-wheat rotation is the main cropping system for grain production in the middle and lower reaches of the Yangtze River, and the area of ​​rice stubble and wheat accounts for more than 70% of the wheat sown area (Shi Zuliang et al., 2014). Surveys show that in order to pursue high yields, phosphorus fertilizers are applied to farmland under the rice-wheat rotation double-cropping planting mode in the middle and lower reaches of the Yangtze River (Ma Yujun et al., 2014). The study found that most of the phosphorus fertilizer applied in the season is related to Ca 2+ , Fe 3+ 、Al 3+ etc. combined into insoluble phosphate and stay in the soil, only 8%-20% of phosphorus is absorbed and utilized by plant roots (Epstein, 1983; Wang Yon...

Claims

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Application Information

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IPC IPC(8): C05G3/04A01C21/00C05G3/80
CPCY02P60/21
Inventor 贾艳艳彭杰王伟中顾大路吴传万杨文飞杜小凤文廷刚孙爱侠诸俊钱新民
Owner JIANGSU XUHUAI DISTRICT HUAIYIN AGRI SCI RES INST
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