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Charcoal-based molybdenum fertilizer capable of reducing nitrate content of vegetables

A technology of nitrate content and biochar, applied in ammonium salt fertilizer, nitrogen fertilizer, organic fertilizer, etc., can solve the problems of complex formula and unsatisfactory effect of reducing nitrate, so as to increase vegetable yield, benefit plant growth, and improve soil The effect of physical properties

Active Publication Date: 2015-06-24
PUBLIC MONITORING CENT FOR AGRO PROD OF GUANGDONG ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The formula is relatively complicated, and the effect of reducing nitrate is still not ideal

Method used

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  • Charcoal-based molybdenum fertilizer capable of reducing nitrate content of vegetables
  • Charcoal-based molybdenum fertilizer capable of reducing nitrate content of vegetables
  • Charcoal-based molybdenum fertilizer capable of reducing nitrate content of vegetables

Examples

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Effect test

Embodiment 1

[0017] A biochar-based molybdenum fertilizer that can reduce the nitrate content of vegetables is composed of the following components: 10㎎ ammonium molybdate, 2㎏ gramineous crop stem biochar, and 6㎏ active silicon fertilizer.

[0018] Preparation method: Both the gramineous crop stem biochar and the active silicon fertilizer pass through a 1mm mesh, and 10g of ammonium molybdate is dissolved in 10L of water to form a 100㎎ / L ammonium molybdate solution. Because the content of molybdenum is very small, it can be better mixed with biochar when added to water. After mixing 100ml of the above ammonium molybdate solution with 2L of water, add 2㎏ gramineous crop stem biochar, and after 24 hours of adsorption equilibrium, 60 Dry in a constant temperature blast drying oven, add 6kg of active silicon fertilizer, and mix well.

Embodiment 2

[0020] A biochar-based molybdenum fertilizer that can reduce the nitrate content of vegetables is composed of the following components: 30㎎ ammonium molybdate, 2㎏ gramineous crop stem biochar, and 6㎏ active silicon fertilizer.

[0021] Preparation method: Both the gramineous crop stem biochar and the active silicon fertilizer pass through a 1mm mesh, and 10g of ammonium molybdate is dissolved in 10L of water to form a 100㎎ / L ammonium molybdate solution. Take 300ml of the above-mentioned ammonium molybdate solution, add 2L of water, and after mixing, add 2kg of gramineous crop stem biochar, after 24 hours of adsorption equilibrium, dry it in a constant temperature blast drying oven at 60°C, then add 6kg of active silicon fertilizer, and mix well .

Embodiment 3

[0023] A biochar-based molybdenum fertilizer that can reduce the nitrate content of vegetables is composed of the following components: 60㎎ ammonium molybdate, 2㎏ gramineous crop stem biochar, and 6㎏ active silicon fertilizer.

[0024] Preparation method: Both the gramineous crop stem biochar and the active silicon fertilizer pass through a 1mm mesh, and 10g of ammonium molybdate is dissolved in 10L of water to form a 100㎎ / L ammonium molybdate solution. Take 600ml of the above-mentioned ammonium molybdate solution, add 2L of water, and after mixing, add 2kg of gramineous crop stem biochar, after 24 hours of adsorption equilibrium, dry it in a constant temperature blast drying oven at 60°C, then add 6kg of active silicon fertilizer, and mix well .

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Abstract

The invention discloses a charcoal-based molybdenum fertilizer capable of reducing the nitrate content of vegetables. The charcoal-based molybdenum fertilizer comprises the following components in parts by weight: 1-10 parts of graminaceous crop straw charcoal, 1-10 parts of an active silicon fertilizer and 0.00001-0.0001 part of ammonium molybdate. With application of the charcoal-based molybdenum fertilizer, the vegetable yield can be effectively improved and the nitrate content of vegetables can be reduced. A pot experiment shows that the charcoal-based molybdenum fertilizer has the functions that the vegetable yield can be improved by 120-236% and the nitrate content of vegetables can be reduced by 38.6-42.9%; in the case of application of the charcoal-based molybdenum fertilizer prepared according a preferable formula, the vegetable yield can be improved by 197-236% and the nitrate content of vegetables can be reduced by 40-42%.

Description

technical field [0001] The invention relates to a vegetable fertilizer, in particular to a biochar-based molybdenum fertilizer that can reduce the nitrate content of vegetables. Background technique [0002] Nitrate, pesticide residues and heavy metal pollution are listed as the three major hazards of vegetables. Nitrate can be reduced to toxic nitrite by microorganisms in the human body, and nitrite can reduce the oxygen-carrying capacity of the blood, resulting in methemoglobin hypoxemia (Lorenz). This is especially true for infants and young children; on the other hand, nitrite can react with secondary amines (secondary amines, tertiary amines, amides and amino acids) in the human body to form strong carcinogens - nitrosamines in the stomach cavity (pH=3), Thereby causing cancer of the digestive system. The daily intake of nitrates in Japanese is equivalent to 3 to 4 times that of Americans, so the mortality rate of gastric cancer in Japanese is 6 to 8 times higher than...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/80
CPCC05C3/00C05G3/80C05D9/00C05F11/02
Inventor 杜应琼王富华陈永坚徐爱平李蕾苏园黄永东杜瑞英赵沛华
Owner PUBLIC MONITORING CENT FOR AGRO PROD OF GUANGDONG ACADEMY OF AGRI SCI
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