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Organic selenium-rich pear special nutrient, preparing method and applications thereof

A technology rich in organic selenium and nutrients, applied in the application, fertilization method, fertilizer mixture and other directions, can solve the problems of difficult quantitative control of selenium content, unfavorable standardized production, and influence on the absorption of inorganic selenium, and achieves no toxic side effects and safety. High, long-dwelling effect

Active Publication Date: 2010-07-21
安徽硒谷生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] At present, there are two main methods for the production of selenium-enriched pears in China. One is to spray selenite solution on the leaves of pear flowers and pear trees. However, this method has a large residual amount of inorganic selenium. The organic ligands combined can be absorbed and utilized by the body, and there are many elements in the intestinal tract that compete with selenium for limited ligands, thus greatly affecting the absorption of inorganic selenium
In addition, inorganic selenium has obvious toxic effects on organisms, and its safety is low.
The second is to plant directly in natural selenium-rich areas. This method is difficult to quantitatively control the selenium content, and there are geographical limitations, which is not conducive to large-scale standardized production

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The nano-selenium plant nutrient, organic fertilizer and microbial fertilizer are uniformly mixed according to the weight ratio, and then pulverized to obtain the special nutrient for pears rich in organic selenium provided by the invention.

Embodiment 2

[0028] In this example, the nano-selenium plant nutrient, organic fertilizer and microbial fertilizer are used to adjust the selenium content level in the special nutrient for pears rich in organic selenium, and the special nutrient for pears rich in organic selenium is prepared according to the preparation method described in Example 1. In a pear production base in Suzhou, before the pear tree blooms, ditches are made around the roots of the pear tree to apply organic selenium-rich pear nutrients with various levels of selenium into the rhizosphere soil at a dosage of 15 kg / mu. After harvesting, the selenium content and organic selenium ratio in ripe organic selenium-rich pears were tested. For this reason, 6 control experiments were set up, and the selenium concentrations of the organic selenium-rich pear special nutrient were 1000 mg / kg, 1400 mg / kg, 5000 mg / kg, 8000 mg / kg, 13000 mg / kg, 15000 mg / kg . In this group of control experiments, only the total selenium concentratio...

Embodiment 3

[0069] Control Experiment 13 to Control Experiment 16 are used to illustrate the application timing of the special nano-selenium plant nutrient formulation for pears rich in organic selenium. Select an organic selenium-rich pear nutrient with a total selenium concentration of 5000 mg / kg, apply it at a rate of 10 kg / mu, and apply it at the leaf-long, flowering, fruit-bearing, and mature stages of pear trees. Application method: take the root of the pear tree as the center of the circle, dig a trench with a depth of about 10-20 cm along a circle with a radius of about 50-70 cm, and apply the special nutrient for producing organic selenium-rich pears. After harvesting, the selenium content and organic selenium ratio in ripe organic selenium-rich pears were tested.

[0070] Control Experiment 13

[0071] Apply during the long leaf period of pear trees.

[0072] After testing, the average selenium content of mature pears is only 16 micrograms / kg, which can reach the selenium cont...

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Abstract

The invention relates to organic selenium-rich pear special nutrient, preparing method and applications thereof. The organic selenium-rich pear special nutrient is prepared from the following components in percentage by weight: 2-8% of nanometer selenium plant nutrient, 1-3% of organic fertilizer, and 0.1-0.4% of microorganism fertilizer, wherein the selenium concentration of the nanometer selenium plant nutrient is 2000-13000mg/kg. The nutrient is prepared by the step of uniformly mixing and crushing the components. When the organic selenium-rich pear special nutrient is used, a ditch with the circle radius of 50-70 cm and the depth of 10-20 cm is dug by taking the root of the pear tree as a circle, and the organic selenium-rich pear special nutrient is applied, wherein the applied selenium total amount is 20-200g/mou.

Description

technical field [0001] The invention relates to a special nutrient for pears rich in organic selenium, a preparation method and application thereof. Background technique [0002] Pear tree belongs to Rosaceae evergreen or semi-deciduous small trees; leaves alternate, simple, entire or serrated, sparsely divided; stipules are small and sometimes fall off; flowers are white, rarely lavender, gathered into a bouquet; fruit is a The fleshy pome often contains a large number of stone cells in the pulp. There are about 25 species, distributed in the northern temperate zone, and there are 14 species in my country, among which P. pyrifolia (Burm.f.) Nakai and P. bretschneideri Rehd. are famous fruits in the north and south of my country. The income of many pear producing areas in my country has become the main way for farmers to get rich, and has become the pillar industry of local national economic income. [0003] The pear fruit is eaten fresh, the meat is crisp and juicy, sweet...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/00A01G17/00A01C21/00C05D9/02
Inventor 李飞尹雪斌毕德金亮刘颖
Owner 安徽硒谷生物科技有限公司
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