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Tobacco stem charcoal soil conditioner of acidic tobacco planting soil, and processing method thereof

A technology of soil improver and biochar, which is applied in the direction of soil conditioning materials, chemical instruments and methods, fertilizer mixtures, etc., can solve the problems of lack of long-term field research, etc., and achieve the effects of enhancing soil fertility, simple production process, and increasing content

Inactive Publication Date: 2015-09-16
YUXI TABACOO COMPANY OF YUNNAN PROVINCE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

There is a lack of long-term field research on the physical and chemical properties, quality standards and preparation methods of biochar suitable for tobacco, the reasonable formulation and application rate of biochar-based soil amendments, the improvement effect on soil and the promotion of flue-cured tobacco growth.

Method used

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  • Tobacco stem charcoal soil conditioner of acidic tobacco planting soil, and processing method thereof
  • Tobacco stem charcoal soil conditioner of acidic tobacco planting soil, and processing method thereof
  • Tobacco stem charcoal soil conditioner of acidic tobacco planting soil, and processing method thereof

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Embodiment 1

[0028] Embodiment 1: A tobacco stalk biochar soil improver for acidic tobacco planting soil, mainly comprising a core layer and a chitosan film layer, the chitosan film layer is wrapped outside the core layer, and the chitosan film layer is wrapped The thickness is 0.8 mm; calculated by weight, the core layer is composed of the following components: 1000 parts of tobacco stalk biochar, 60 parts of calcium nitrate, 12 parts of magnesium nitrate, 12 parts of zinc oxide and 35 parts of borax.

[0029] The tobacco stalk biochar soil improver for acidic tobacco planting soil is prepared by the following method:

[0030] (1) Preparation of tobacco stalk biochar: dry and collect the tobacco stalks left in the field after harvesting the tobacco leaves, chop them into strips with a length of less than 10 cm with a cutting machine, and put them into a carbonization furnace for carbonization. Control the temperature in the carbonization furnace at 450°C to gradually carbonize the tobacco...

Embodiment 2

[0036] Embodiment 2: A tobacco stalk biochar soil conditioner for acidic tobacco planting soil and its processing method. The tobacco stalk biochar soil conditioner for acidic tobacco planting soil mainly includes a core layer and a chitosan film layer. Chitosan The sugar film layer is wrapped outside the core layer, and the wrapping thickness of the chitosan film layer is 0.6mm; calculated by weight, the core layer is composed of the following components, 900 parts of tobacco stalk biochar, 50 parts of calcium nitrate, 8 parts of magnesium nitrate, 8 parts of zinc oxide, 25 parts of borax.

[0037] The tobacco stalk biochar soil improver for acidic tobacco planting soil is prepared by the following method:

[0038] (1) Preparation of tobacco stalk biochar: dry and collect the tobacco stalks left in the field after harvesting the tobacco leaves, chop them into strips with a length of less than 10 cm with a cutting machine, and put them into a carbonization furnace for carboniz...

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Abstract

The invention relates to a tobacco stem charcoal soil conditioner of acidic tobacco planting soil, and a processing method thereof. The chitosan thin film layer of the conditioner is wrapped outside a core layer, and the wrapping thickness of the chitosan thin film layer is 0.6-0.8mm; and the core layer is mainly composed of tobacco stem charcoal, calcium nitrate, magnesium nitrate, zinc oxide, borax and phosphate dissolving bacteria. The processing method of the conditioner mainly comprises the following steps: preparing tobacco stem charcoal from waste tobacco stems; crushing the tobacco stem charcoal; uniformly mixing all components of the core layer; sprinkling the phosphate dissolving bacteria; sprinkling a binder, and granulating; and dressing by using chitosan. In the invention, the tobacco stem charcoal has extremely strong water absorption and water retention abilities, an extremely high specific surface area and a loose physical structure, can effectively improve the content of organic carbon in soil, improves the soil nitrogen retention ability and potassium supply ability, improves the nutrients needed by the growth of tobacco, increases the mineralization release of effective phosphorus in soil, and can effectively improve the southern acidic tobacco planting soil.

Description

technical field [0001] The invention belongs to the technical field of soil improvers, and relates to a biochar-type soil improver for acidic tobacco-growing soil and a processing method thereof, and is particularly suitable for improving acidic tobacco-growing soil. Background technique [0002] Biochar is a kind of crop straw, woody matter, poultry manure or other organic materials obtained by pyrolysis at high temperature (300°C-700°C) in a low-oxygen environment. It has a large specific surface area, many pores, adsorption and stability. Highly aromatized carbon-rich substances with strong and other characteristics. In recent years, the application of biochar as a functional material in many research fields such as agriculture, forestry, environment, and energy has attracted widespread attention. It has considerable potential in improving soil arability, improving fertility, reducing greenhouse gas emissions, and remediating pollution. [0003] Since the mid-to-late 199...

Claims

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Application Information

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IPC IPC(8): C09K17/40C09K101/00C09K109/00
CPCC09K17/40C09K2101/00C09K2109/00
Inventor 李江舟计思贵张立猛焦永鸽沙传平田泽华
Owner YUXI TABACOO COMPANY OF YUNNAN PROVINCE
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