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Special rice selenium-rich fertilizer capable of inhibiting heavy metal cadmium in crops as well as preparation method and application thereof

A technology for heavy metals and fertilizers, which is applied in fertilization methods, applications, rice cultivation, etc., can solve problems such as low comprehensive utilization rate, achieve effective accumulation, inhibit enrichment, and solve environmental pollution.

Active Publication Date: 2020-07-31
沃博特生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Except for a small amount of orange peel used in the production of tangerine peel, feed and food additives, most of it is exhausted by growers and consumers, and the comprehensive utilization rate is very low

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The special selenium-rich fertilizer for rice that inhibits heavy metal cadmium in crops is prepared from the following raw materials by weight:

[0033] 30 parts of orange peel, 10 parts of tea seed cake, 1 part of calcium hydrogen phosphate, 1 part of potassium chloride, 2 parts of sodium selenite.

[0034] Take orange peel and tea seed cake, pulverize them to a particle size of 4-6 mm, control the water content to 30%, and inoculate 5 × 10 containing Pichia pastoris. 9 cfu / mL and fission yeast 5×10 9 cfu / mL mixed fermentation broth, inoculate 1-5 mL of mixed fermentation broth per 100 g of fermentation substrate. Control the fermentation temperature below 40 ℃, ferment for 36 hours, and turn the pile every 12 hours. After the fermentation is completed, drying is carried out until the water content is 10%-20%, and mixed with calcium hydrogen phosphate, potassium chloride and sodium selenite to obtain the special selenium-rich fertilizer for rice that inhibits heavy ...

Embodiment 2

[0036] The special selenium-rich fertilizer for rice that inhibits heavy metal cadmium in crops is prepared from the following raw materials by weight:

[0037] 50 parts of orange peel, 20 parts of tea seed cake, 3 parts of calcium hydrogen phosphate, 2 parts of potassium chloride, 2 parts of sodium selenite.

[0038] Take orange peel and tea seed cake, pulverize them to a particle size of 4-6 mm, control the water content to 30%, and inoculate 5 × 10 containing Pichia pastoris. 9 cfu / mL and fission yeast 5×10 9 cfu / mL mixed fermentation broth, inoculate 1-5 mL of mixed fermentation broth per 100 g of fermentation substrate. Control the fermentation temperature below 40 ℃, ferment for 36 hours, and turn the pile every 12 hours. After the fermentation is completed, drying is carried out until the water content is 10%-20%, and mixed with calcium hydrogen phosphate, potassium chloride and sodium selenite to obtain the special selenium-rich fertilizer for rice that inhibits heav...

Embodiment 3

[0040] The special selenium-rich fertilizer for rice that inhibits heavy metal cadmium in crops is prepared from the following raw materials by weight:

[0041] 40 parts of orange peel, 15 parts of tea seed cake, 3 parts of calcium hydrogen phosphate, 3 parts of potassium chloride, 2 parts of sodium selenite.

[0042] Take orange peel and tea seed cake, pulverize them to a particle size of 4-6 mm, control the water content to 30%, and inoculate 5 × 10 containing Pichia pastoris. 9 cfu / mL and fission yeast 5×10 9 cfu / mL mixed fermentation broth, inoculate 1-5 mL of mixed fermentation broth per 100 g of fermentation substrate. Control the fermentation temperature below 40 ℃, ferment for 36 hours, and turn the pile every 12 hours. After the fermentation is completed, drying is carried out until the water content is 10%-20%, and mixed with calcium hydrogen phosphate, potassium chloride and sodium selenite to obtain the special selenium-rich fertilizer for rice that inhibits heav...

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PUM

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Abstract

The invention discloses a special rice selenium-rich fertilizer capable of inhibiting heavy metal cadmium in crops as well as a preparation method and application thereof. The fertilizer is prepared from the following raw materials in parts by weight: 30-50 parts of orange peels, 10-20 parts of a cake fertilizer, 1-5 parts of calcium hydrogen phosphate, 1-5 parts of potassium chloride and 1-3 parts of sodium selenite, wherein the cake fertilizer is one or more of a soybean cake, a peanut cake, a rapeseed cake, a sesame cake and a tea seed cake. Agricultural and sideline products such as orangepeels and the cake fertilizer are fully utilized, and the problem of environmental pollution is solved. The special rice selenium-rich fertilizer can effectively accumulate selenium and inhibit enrichment of cadmium of a rice product.

Description

technical field [0001] The invention relates to the field of fertilizers, in particular to a preparation method and application of a special selenium-rich fertilizer for rice that inhibits heavy metal cadmium in crops. Background technique [0002] There are two types of cadmium in food. The first category is that the cadmium content in food is very high but the amount eaten every day is relatively small, including mollusks (such as squid), crabs, mushrooms, seaweed, animal kidneys, etc.; the second category is food The cadmium content is very low, but it is true that people eat a lot of it every day. The most typical one is rice, and others include wheat, leafy, melon and fruit vegetables and livestock. Rice is the staple food and is eaten every day, so it is of great significance to reduce the cadmium content in it. [0003] At present, more researches are to use selenium-rich fertilizers to inhibit the absorption and transport of cadmium. Rice plants absorb selenium and...

Claims

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Application Information

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IPC IPC(8): C05G1/00C05F17/20A01C21/00A01G22/22
CPCC05B3/00A01C21/005A01G22/22Y02W30/40
Inventor 彭勇彭瑞芳
Owner 沃博特生物科技有限公司
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