A kind of soil phosphorus activator and its preparation method, application method and application

A technology of soil phosphorus and application method, which is applied in the field of soil phosphorus activator and its preparation, can solve the problems that phosphorus cannot be absorbed and utilized, the effect of phosphorus solution is unstable, and agricultural non-point source pollution, etc., so as to improve availability and increase Phosphate fertilizer utilization rate, effect of enhancing absorption efficiency

Active Publication Date: 2021-06-25
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

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  • A kind of soil phosphorus activator and its preparation method, application method and application

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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, which belongs to the technical field of biological fertilizers. The soil phosphorus activator comprises the following components in parts by mass: 0.01-0.1 parts of B group metal oxides, 25-60 parts of Aspergillus fungi 30 to 50 parts of arbuscular mycorrhizal fungi of the genus Cystis, 8 to 12 parts of humic acid, and 10 to 20 parts of bean crop straw; in the soil phosphorus activator, the effective number of viable bacteria of the fungus of the genus Aspergillus ≥ 1×10 8 CFU / g, the effective number of spores of arbuscular mycorrhizal fungi of the genus Cystis ≥ 15 / g. The soil phosphorus activator provided by the invention can activate phosphorus in the wheat field soil, reduce the solidification of phosphorus to inactive phosphorus, stimulate the absorption of surrounding phosphorus by wheat roots, improve the utilization rate of phosphorus fertilizer, reduce the application of phosphorus fertilizer, and ensure Stable and increased production 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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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C05G3/80A01C21/00C09K101/00
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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