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Application of nano chitin in aspect of increasing fertilizer utilization rate

A technology of chitin and utilization rate, applied in the direction of application, organic fertilizer, fertilizer mixture, etc., can solve problems that have not been systematically studied, and achieve the effect of reducing environmental damage and pollution, promoting recycling, and improving utilization rate

Active Publication Date: 2020-05-08
HENAN AGRICULTURAL UNIVERSITY +1
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  • Claims
  • Application Information

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Problems solved by technology

Studies have shown that nano-titanium dioxide, multi-layered carbon nanotubes, metal nanoparticles and nano-material-based nano-sensors, etc., these materials are used in agriculture, but nano-chitin with good biological characteristics and application value Application to improve fertilizer use efficiency has not been systematically studied

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  • Application of nano chitin in aspect of increasing fertilizer utilization rate
  • Application of nano chitin in aspect of increasing fertilizer utilization rate
  • Application of nano chitin in aspect of increasing fertilizer utilization rate

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Embodiment Construction

[0029] The technical solutions of the present invention will be further described in detail below in conjunction with the examples, but the protection scope of the present invention is not limited thereto.

[0030] In the following examples, the nano-chitin used is obtained through the following methods:

[0031] Nano-chitin was prepared by an improved acid hydrolysis method, specifically: 600mL 3mol L -1 The hydrochloric acid was put into a three-necked round-bottomed flask, placed in a digital constant temperature oil bath filled with glycerin and heated in an oil bath until the temperature rose to 85°C, 2g of chitin powder (purchased from Sigma, USA) was added, and stirred at a constant speed for 1.5 h Make the chitin powder fully contact with hydrochloric acid and react (the reaction system maintains a constant temperature of 85°C). After 1.5 hours, the reaction system was taken out from the three-neck round bottom flask, and immediately transferred to 4°C deionized water...

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Abstract

A novel nano biological material-nano chitin aqueous suspension prepared through acidolysis and deacylation is mixed with a fertilizer to promote growth of pyrus betulaefolia seedlings and improve theabsorption and utilization rate of the fertilizer. The nano water suspending agent is a nano chitin crystal particle with a polycation property, and data display thata various growth indexes of the pyrus betulaefolia seedlings can almost reach the same effect as that of the 100% conventional fertilization amount under the condition of applying 75% fertilizer and nano chitin; with applying 50% fertilizer and the nano chitin, the nutritional growth indexes such as the plant height, the stem diameter, the fresh / dry weight and the like of the pyrus betulaefolia seedlings can be significantly improved, so that the absorption amount of the seedlings on nitrogen elements is significantly increased (the influence on phosphorus and potassium elements is small). The results preliminarily show thatthe nano chitin which is a natural polymer material has a good synergistic effect when being mixed with the fertilizer for application, and the utilization rate of the fertilizer can be increased by 25%-50%.

Description

technical field [0001] The invention belongs to the technical field of application of novel biological nanomaterial α-nano-chitin, and specifically relates to the application of nano-chitin in improving the utilization rate of fertilizers. Further, it is mixed with fertilizers in different proportions and applied to agricultural production, including It is used to promote the growth of plants such as pears, absorb mineral elements and synergize with fertilizers, reducing the amount of fertilizers to a certain extent. Background technique [0002] Biological nanomaterials are recognized as the most promising scientific research field in the 21st century, and a frontier and hot topic in the field of international biotechnology. Nanotechnology is triggering this new industrial technology revolution. The interpenetration of nanotechnology and agricultural technology has also given birth to new disciplines such as agricultural nanotechnology, providing new theories, methods and t...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/80
CPCC05F11/00C05G3/00Y02P60/21
Inventor 王合中王东升吕珍珍郭献平吴中营韩永平张雪雅
Owner HENAN AGRICULTURAL UNIVERSITY
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