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Silicon-containing biochar base fertilizer, preparation method and application method thereof

A biochar-based fertilizer and application method technology, applied in the direction of soil preparation, nitrogen fertilizer, application, etc., can solve the problems of inability to effectively realize the comprehensive utilization of agricultural and forestry waste and industrial silicon slag, fertilizer effectiveness, and unsatisfactory cost

Pending Publication Date: 2020-06-02
SHANGHAI ACAD OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although some organic fertilizers and carbon-based fertilizers have been developed in agriculture, however, these fertilizers are still unsatisfactory in terms of efficacy, cost, etc.
In addition, some existing agricultural fertilizers cannot effectively realize the comprehensive utilization of agricultural and forestry waste and industrial silicon slag

Method used

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  • Silicon-containing biochar base fertilizer, preparation method and application method thereof
  • Silicon-containing biochar base fertilizer, preparation method and application method thereof
  • Silicon-containing biochar base fertilizer, preparation method and application method thereof

Examples

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preparation example Construction

[0118] Preparation method of silicon-containing biochar-based fertilizer

[0119] The present invention also provides the preparation method of silicon-containing biochar-based fertilizer of the present invention, comprising steps:

[0120] (i) Provide biochar, organic fertilizer, nitrogen fertilizer, and silicon fertilizer;

[0121] (ii) mixing biochar, organic fertilizer, nitrogen fertilizer, and silicon fertilizer to form the silicon-containing biochar-based fertilizer described in the first aspect of the present invention.

[0122] In the present invention, the mixing can be carried out using conventional equipment, such as a dry mixer and the like.

[0123] Application method of silicon-containing biochar base fertilizer

[0124] The invention also provides the application of the silicon-containing biochar base fertilizer of the invention. Typically, the silicon-containing biochar-based fertilizer of the present invention can be applied on the surface and / or in the soi...

Embodiment 1

[0140] Silicon-containing biochar fertilizer No.1

[0141] The specific steps for the preparation of silicon-containing biochar base fertilizer in the present embodiment are as follows:

[0142] (1) Preparation of biochar: use rice straw and peach tree residual branches to air-dry and crush, and the crushed material is pyrolyzed at 550°C for 3.5 hours under oxygen-limited conditions, and ground through a 100-mesh sieve after cooling;

[0143] (2) Preparation of silicon fertilizer: use metallurgical silicon slag (total silicon content > 30wt%) to grind through a 100-mesh sieve, soak in 5mol / L NaOH solution for 5 hours to activate, then wash with distilled water and dry to obtain Silicon fertilizer;

[0144] (3) Preparation of silicon-containing biochar base fertilizer, in parts by weight: get 30 parts of biochar, 36 parts of organic fertilizer (purchased from Shanghai Hexiao Organic Fertilizer Co., Ltd.), 10 parts of urea, 12 parts of silicon fertilizer and fully mix, Made si...

Embodiment 2

[0147] The application method of silicon-containing biochar base fertilizer in the present embodiment, the specific steps are as follows:

[0148] (1) the silicon-containing biochar base fertilizer that embodiment 1 makes is applied to the vineyard soil by 500kg / ha, and the grape variety is Kyoho, and the tree age is 10 years;

[0149] (2) After fertilization, 0-20cm of the soil surface is plowed, so that the silicon-containing biochar base fertilizer is fully mixed with the soil;

[0150] (3) Grape yield, quality and soil organic matter content were measured after the grapes were harvested in the current season; the results are shown in Table 1.

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Abstract

The invention provides a silicon-containing biochar base fertilizer, a preparation method and an application method thereof, wherein specifically the silicon-containing biochar base fertilizer is prepared from the following components in parts by weight: 20 to 40 parts of biomass charcoal, 30 to 45 parts of an organic fertilizer, 5 to 15 parts of a nitrogen fertilizer and 10 to 20 parts of a silicon fertilizer. The silicon-containing biochar base fertilizer can synergistically and significantly improve the yield and the quality of fruits and improve the physical and chemical properties of soil. A feasible and effective treatment mode is provided for comprehensive ecological cyclic utilization of agricultural and industrial wastes.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to silicon-containing biochar-based fertilizers and their preparation and application methods. Background technique [0002] At present, the common practice of modern agricultural production around the world is to rely on large quantities of chemical fertilizers. Although chemical fertilizers have been shown to greatly increase crop yields per acre, this effect is only short-term, and repeated application of fertilizers over time leads to increased costs and accelerated soil degradation. For example, after three to five years of intensive use of chemicals, the natural fertility of the soil decreases significantly with each year of continuous chemical application. [0003] Organic fertilizers have been used in agriculture for many years, especially in rural areas where there are a large number of animal and plant wastes, which can be accumulated, fermented, and applied on the spot. They h...

Claims

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Application Information

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IPC IPC(8): C05G3/80A01B79/02
CPCC05C9/00A01B79/02
Inventor 赵峥吴淑杭褚长彬周德平
Owner SHANGHAI ACAD OF AGRI SCI