Efficiency-improving method of compound bio-based chemical fertilizer and efficiency-enhancing chemical fertilizer

A bio-based and chemical fertilizer technology, applied in the direction of fertilizer mixture, bio-organic part treatment, organic fertilizer, etc., can solve the problems of environmental risks, high price of chemical-based materials, etc., to improve crop quality, control loss, and increase crop biomass Effect

Active Publication Date: 2018-07-10
HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These chemical-based materials are expensive, and the unbroken or decomposed monomers in the soil can sometimes pose environmental risks

Method used

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  • Efficiency-improving method of compound bio-based chemical fertilizer and efficiency-enhancing chemical fertilizer
  • Efficiency-improving method of compound bio-based chemical fertilizer and efficiency-enhancing chemical fertilizer
  • Efficiency-improving method of compound bio-based chemical fertilizer and efficiency-enhancing chemical fertilizer

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Experimental program
Comparison scheme
Effect test

preparation example Construction

[0044] In order to further explain the preparation method of the chemical fertilizer efficiency enhancement factor, the present invention further provides a more detailed example.

[0045] A loop of bacterial cells was scraped from the preservation slant of CSF-1 strain and inoculated into a 300-ml Erlenmeyer flask containing 20 ml of seed medium. Incubate for 14 hours at 37°C with a shaker speed of 200 rpm. Then inoculate it into a 1000ml Erlenmeyer flask containing 150ml fermentation medium at 1:100 and cultivate for 12-16 hours to prepare a bacterial suspension (solid-state fermentation seed liquid) for later use.

[0046] Composition of seed medium and fermentation medium (calculated in 1000mL medium): maltose 40g, soluble starch 40g, glutamic acid 20g, MgSO 4 0.5g, KCl 0.5g, KH 2 PO 4 1g, FeSO 4 ·7H 2 O0.15g, MnSO 4 0.005g, CuSO 4 ·5H 2 O 0.00016g, yeast extract 1g, pH 7.0-7.2. above medium in 1.0 x 10 5 Pa, sterilized at 121°C for 20min.

[0047] The compos...

Embodiment 1

[0054] The surface of the downstream substrate after solid fermentation has a white or light brown film, and thick mucus can be seen with needles and filaments can be pulled out, indicating that a γ-polyglutamic acid-like polymer is synthesized by fermentation. The yield was detected to be 40-60 g / kg (material), and the molecular weight was between 40-150 kDa.

[0055] Dry the fermentation substrate, weigh 0.1 g and extract it with 4 ml of pure water (2.5% concentration). After the insoluble particles are precipitated, take the supernatant (extract solution), and the concentration of the supernatant is 0.87%. The flocculation effect of the supernatant on soil colloids was tested.

[0056] A 2.5% polyaluminum chloride solution was prepared as a control to compare the flocculation effect of the two on soil colloids.

[0057] The soil was dried and pulverized, and 0.4 g was weighed into 40 ml of pure water to prepare a suspension. A certain amount of leaching solution was added...

Embodiment 2

[0063] The weight ratio of soybean meal-corn germ meal-attapulgite in the solid fermentation medium used to prepare 1kg of compound bio-based urea for improving efficacy is 60-20-20.

[0064] Take 6 acrylic tubes with a length of 490 mm and an inner diameter of 14 mm. Tubes 1, 2, and 3 are set as the control group, and tubes 4, 5, and 6 are set as the experimental group. The six tubes were first filled with 45g of 80-100 mesh quartz sand (about 200mm in height), the control group was filled with a mixture of 0.1g urea and 1g quartz sand, and finally covered with 10g quartz sand; while the experimental group was filled with 0.1g urea, 0.01g efficiency factor Mix with 1g of quartz sand, and finally cover with 10g of quartz sand.

[0065] The 6 pipes are placed vertically on the support, and the water is leached from above, and the water inlet rate is 0.1ml / min. The filtrate was collected every 30 minutes, and the filtrate was collected in three time periods. The quality of the ...

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Abstract

The present invention discloses an effect enhancing method of a compound biobased fertilizer and a fertilizer with an enhanced effect. The key is to introduce an effect enhancing factor of the compound biobased fertilizer to the fertilizer. The effect enhancing factor refers to all matrixes downstream derived from residues of production of agricultural products and solid state fermentation of active soil materials, and comprises a biopolymer polymer gamma-polyglutamic acid and a broad spectrum of plant nutrients derived from a biological fermentation process of plants. The present invention is capable of not only reducing or controlling fertilizer nutrients loss, but also improving the plant rhizosphere soil ecological environment, thus promoting balanced nutrient absorption by plants. In the case of the reduced fertilizer application amount, crop biomass can be increased and crop quality can be improved. The present invention further discloses a preparation method of the fertilizer effect enhancing factor, a compound biobased fertilizer with the enhanced effect and having the fertilizer effect enhancing factor and an application of the compound biomass fertilizer with the enhanced effect.

Description

technical field [0001] The invention relates to the technical field of chemical fertilizers, in particular to a chemical fertilizer efficiency improvement factor in this field, a method for preparing the chemical fertilizer efficiency improvement factor, application of the chemical fertilizer efficiency improvement factor in chemical fertilizer, and a chemical fertilizer efficiency improvement factor having the chemical fertilizer efficiency improvement factor. A compound bio-based efficiency-enhancing fertilizer, and a method for making the compound bio-based efficiency-enhancing fertilizer. Background technique [0002] Among the factors of increasing grain production, the contribution of chemical fertilizers accounts for about 40%. However, the current utilization rate of fertilizer nitrogen is only 30%-35%, most of which are released to the environment through leakage, runoff or volatilization, resulting in a three-dimensional crossing from the ground (water), the surfac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05G3/04C05F17/00C05G3/80
CPCY02W30/40
Inventor 冯慧云吴珂魏东霞李璇余增亮
Owner HEFEI INSTITUTES OF PHYSICAL SCIENCE - CHINESE ACAD OF SCI
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