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Ecological organic compound water-retaining agent and preparation method thereof and water-retaining and fertilizing soil

A technology of water-retaining agent and model, applied in the direction of organic fertilizers, chemical instruments and methods, fertilization devices, etc., can solve the problems of not being able to significantly improve farmers' economic benefits, complicated preparation process, soil degradation environment, etc., and achieve the realization of waste resources Utilization, simple process, and the effect of improving economic benefits

Active Publication Date: 2021-02-19
SHANXI AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, although the synthetic polymer water-retaining agent has good water absorption performance and high gel strength, it has poor salt tolerance and is not easy to degrade in the later stage, which may cause soil degradation and environmental pollution; although the natural polymer modified water-retaining agent has good salt tolerance, It is relatively environmentally friendly, but the raw materials used need to be purified, the preparation process is complicated, the cost is high, and the stability is poor, which cannot significantly improve the economic benefits of farmers; the organic-inorganic composite water-retaining agent has a wide range of raw materials, environmental protection and relatively low cost , but it does not make full use of the solid waste resources that are now ubiquitous, and the product may not be suitable for the northern dry land soil

Method used

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  • Ecological organic compound water-retaining agent and preparation method thereof and water-retaining and fertilizing soil
  • Ecological organic compound water-retaining agent and preparation method thereof and water-retaining and fertilizing soil
  • Ecological organic compound water-retaining agent and preparation method thereof and water-retaining and fertilizing soil

Examples

Experimental program
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Effect test

preparation example Construction

[0062] The present invention also provides a preparation method of the above-mentioned ecological organic composite water-retaining agent, comprising: providing various raw material components, each of which includes 40-50 parts of polyacrylamide, 10-20 parts of bentonite, and 10-20 parts of bone meal. 20 parts, 10-20 parts of weathered coal, 10-20 parts of biochar, and mix each raw material component evenly to obtain an ecological organic type composite water retaining agent.

[0063] When preparing the ecological organic type composite water retaining agent in the form of tablets or granules, the preparation method of the ecological organic type composite water retaining agent also includes: adding 0.1-1 part of initiator and crosslinking agent to each raw material component 0.1-1 part of the agent and mixed evenly, and the ecological organic type composite water retaining agent in the form of tablets or granules is prepared by molding technology.

[0064] Specifically, in a...

Embodiment 1

[0075] The ecological organic composite water-retaining agent selected in Example 1 includes: 40-50 parts of polyacrylamide, 10-20 parts of bentonite, 10-20 parts of bone meal, 10-20 parts of weathered coal, and 10-20 parts of biochar.

[0076] This test is a pot test, and the test site is located at the test station of the School of Resources and Environment of Shanxi Agricultural University. The soil for testing is collected from the base of the test station of the School of Resources and Environment of Shanxi Agricultural University. The test crop is maize, and the variety is Xianyu 335.

[0077] There were 5 treatments in this experiment, which were control (CK), ratio 1, ratio 2, ratio 3 and ratio 4. Proportion 1, Proportion 2, Proportion 3 and Proportion 4 respectively represent 4 kinds of ecological organic compound water retaining agents with different composition ratios. Each treatment was repeated three times. The container used for the potted plants was a plastic b...

Embodiment 2

[0083] This test is a field application test. This test is carried out in the wheat field (long-term positioning test area) in the dry area of ​​Dongliang Village, Liujiayuan Town, Hongdong County, Linfen City, Shanxi Province. The test time is from September 2014 to June 2015. The test area is located in the northern latitude 36o3', east longitude 117o7', this area has a warm temperate continental monsoon climate, with an annual average temperature of 12-13°C, and the rainfall during the winter wheat fallow period (June-September) is 413.3mm, and the rainfall during the growth period is 95.9mm. The soil tested was calcareous cinnamon soil with medium loam texture.

[0084] There are 3 treatments in this experiment, 4 repetitions, and the area of ​​the plot is 170-470m 2 , using a randomized block permutation design. The three treatments are respectively: control treatment, film-covered control treatment, and treatment of the present invention, and all three treatments are pl...

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Abstract

The invention provides an ecological organic compound water-retaining agent, a preparation method thereof, and water-retaining and fertilizing soil. The ecological organic composite water-retaining agent of the present invention comprises the following components and parts by weight: 40-50 parts of polyacrylamide, 10-20 parts of bentonite, 10-20 parts of bone meal, 10-20 parts of weathered coal, and 10-20 parts of biochar 20 servings. The ecological organic compound water-retaining agent of the present invention has the characteristics of high-efficiency water and fertilizer retention and stable performance. By utilizing solid waste such as weathered coal, the utilization of waste resources is realized, which is environmentally friendly and reduces production costs. In addition, the present invention The ecological organic compound water retaining agent will not cause soil degradation and environmental pollution, and is ecologically safe and environmentally friendly. The water- and fertilizer-retaining soil of the present invention contains the above-mentioned ecological organic compound water-retaining agent, has strong water-retaining and fertilizer-retaining ability, and has high crop yield.

Description

technical field [0001] The invention relates to the technical field of soil water and fertilizer conservation, in particular to an ecological organic compound water retention agent, a preparation method thereof, and water and fertilizer conservation soil. Background technique [0002] The lack of water resources is a very important problem facing our country. my country's per capita water resources account for only a quarter of the world's per capita share, while my country's agricultural water consumption accounts for 60% of the country's total water consumption. However, the water use efficiency But very low. In the future, the shortage of water resources will become one of the important problems hindering the development of agriculture in our country. [0003] In recent years, it has become more and more common to use water-retaining agents in agriculture to improve the yield and water use efficiency of crops. Water-retaining agents are polymer materials that can absorb a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K17/40C09K101/00
CPCC09K17/40C09K2101/00
Inventor 余高谢英荷李廷亮谢钧宇洪坚平陈芬赵晓东岳丽
Owner SHANXI AGRI UNIV
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