CN101157581B - Selenium-enriched organic nutrition regulator and preparation method thereof - Google Patents

Abstract

The invention discloses a selenium-enriched organic nutrition regulator and a preparation method thereof. The regulator mainly contains the following components: 15-50 g/L of chitin, 10-50 g/L of selenium source material in terms of selenium, and brassinolide 10-60mg/L, used to supplement the total content of trace elements missing in the soil 10-30g/L, emulsifier 0.5-5g/L, others are acetic acid solution or water used to dissolve the chitin, used to dissolve The alcohol of the brassinolide; the preparation method of the present invention is: completely dissolving chitin in acetic acid solution or water, adding the selenium source substance and the trace elements while stirring, and finally adding the alcohol-dissolved brassinolide Ester and emulsifier, and then use acetic acid solution or water to make up the volume, so that each component reaches the specified concentration, and continue to stir evenly. The invention can not only play the role of brassinolide in regulating plant growth, but also effectively regulate the selenium intake of crops, avoid the damage of selenium to crops, achieve the effect of reasonable absorption of selenium, and enrich in crops, thereby Produce safe selenium-enriched agricultural products.

Description

Selenium-enriched organic nutrition regulator and preparation method thereof

technical field

The invention relates to an organic nutrient regulator applied to crops, in particular to a selenium-enriched organic nutrient regulator and a preparation method thereof.

technical background

Selenium is one of the essential trace elements for human beings. Numerous scientific studies have shown that selenium has the functions of anti-cancer and anti-cancer, enhancing human immune function, lowering blood sugar, protecting cardiovascular and cerebrovascular, preventing cataracts and delaying aging. Therefore, the whole society has set off a trend. Selenium upsurge. There are currently three main ways to supplement selenium for the human body, inorganic selenium supplementation, synthetic selenium supplementation and natural organic selenium supplementation. Selenium has attracted more and more attention due to its advantages such as good effect, no side effects and wide sources. Natural organic selenium supplementation mainly lies in food supplementation, which is to eat some safe selenium-rich foods reasonably, such as selenium-rich rice, meat, vegetables, fruits, etc. And selenium is not an essential nutrient element for crops, and most of my country is a selenium-deficient area, and the selenium absorbed by plants from the soil is extremely limited. Selenium-enriched fertilizers came into being. At present, there are many kinds of selenium-rich fertilizers on the market, some are used as base fertilizers, and some are used as foliar fertilizers. In the existing selenium-enriched fertilizers, the added selenium is mainly a separate selenium source material, or it is compatible with other inorganic fertilizers. There are many problems in practical application, such as low plant utilization rate and high concentration, resulting in injury. The phenomenon of leaf injury and fruit; as a base fertilizer, it is easy to pollute the soil and so on. Therefore how to avoid the damage of selenium to crops, reach the effect of absorbing selenium rationally, make people can obtain natural organic supplementing selenium from food, is the problem demanding prompt solution at present.

Contents of the invention

The invention aims to provide a high-efficiency, selenium-enriched organic nutrition regulator that is beneficial to crops to absorb selenium and a preparation method thereof.

The selenium-enriched organic nutrition regulator provided by the present invention mainly contains the following components: chitin 15-50g/L, selenium source material calculated as selenium 10-50g/L, brassinolide 10-60mg/L, The total content of trace elements missing in the supplement soil is 10-30g/L, the emulsifier is 0.5-5g/L, and the others are acetic acid solution or water for dissolving the chitin, for dissolving the brassinolide the alcohol; the chitin is one of chitosan, water-soluble chitosan and chitosan oligosaccharide; the selenium source material is selenate or selenite; the emulsifier is Tween- 80. One or a combination of Siben-80 and Triton-100, wherein the trace element is at least one or a combination of zinc, boron, copper, manganese, molybdenum, and iron.

The chitosan is dissolved in an acetic acid solution with a concentration of 0.2%-2%, and the alcohol concentration used for dissolving the brassinolide is not lower than 95%.

The preparation method of the present invention is as follows: completely dissolving chitin in acetic acid solution or water, adding selenium source material and the trace elements while stirring, finally adding alcohol-dissolved brassinolide and emulsifier, and then using acetic acid solution or Dilute the water to make the ingredients reach the specified concentration, and continue to stir well.

Brassinolide (brassinolide) is a newest plant endogenous growth substance, and is internationally recognized as the most active, broad-spectrum, non-toxic plant growth regulator. Plant physiologists believe that it can fully Stimulate the inherent potential of plants, comprehensively regulate and promote the growth of plants, and give full play to their growth advantages. Its main functions are to increase enzyme activity, improve seed vigor, and promote early development; enhance photosynthetic efficiency, increase crop yield, and improve crop quality; Harmful and chemical pollution drug harm; anti-virus, bacteria, fungus harm.

The present invention forms an organic aqueous solution by combining brassinolides with selenium source substances, which can not only play the role of brassinolides in regulating plant growth, but also effectively regulate the intake of selenium by crops, avoiding the effects of selenium on crops. Harm, achieve the effect of reasonable absorption of selenium, and enrich in crops, so as to produce safe selenium-enriched agricultural products.

The beneficial effects of the present invention are:

1. The present invention uses natural polysaccharides as templates to convert oil-soluble brassinolides into water-soluble nano-spheres through nanotechnology, which prolongs the action time of brassinolides, effectively promotes the growth and development of plants, and ensures the production of crops. increase in production.

2. The present invention organically combines selenium source substances and plant growth substances, which not only promotes plant growth, but also effectively regulates the absorption of selenium by plants.

3. The selenium-enriched organic nutrition regulator of the present invention can effectively promote the growth of plants, delay aging, effectively increase crop yield, especially increase the selenium content of crop fruits and significantly improve crop quality.

4. The selenium-enriched organic nutrient regulator prepared by the present invention is an aqueous preparation, which can be directly mixed with water for foliar spraying. The operation is very convenient, and it is easy for users to accept and popularize the product.

5. The raw materials used in the present invention, except brassinolide, are natural polysaccharides, sodium selenite, etc., which are all cheap and easy-to-obtain products, and the amount of brassinolide used is very small, so the cost of raw materials is relatively low. Moreover, the whole preparation process is simple, the equipment requirements are general, the reaction time is short, the conditions are mild, and there is no pollution. They are all carried out under normal temperature and pressure, and are easy to produce on a large scale.

Description of drawings

Accompanying drawing 1 is the particle size distribution diagram of the selenium-enriched organic nutrition regulator of the present invention detected by zeta-sizer.

Detailed ways:

Example 1:

1) Weigh 2g of agricultural chitosan oligosaccharide and dissolve it in 100mL of water completely under stirring.

2) Add 6g of sodium selenite, stir to dissolve.

3) Add 1g each of other trace elements (Zn+B) and stir to dissolve.

4) Weigh 4 mg of brassinolide, dissolve it in 10 mL of 95% ethanol, slowly add it to the solution obtained in step 3, add 1 g of Tween-80, and continue stirring.

5) Adjust the pH value to 6.5 with acetic acid, adjust the volume to 200ml with water, and stir evenly to prepare a selenium-enriched organic nutrition regulator containing 30g/L of selenium and 20mg/L of brassinolide.

As can be seen from Fig. 1, the particle size distribution of the selenium-enriched organic nutrient regulator of the present embodiment detected by zeta-sizer, it can be seen that the size distribution is 300-1000nm, the average particle size is 333nm, and the dispersion coefficient is 0.244, indicating that the prepared selenium-rich The selenium organic regulator has a submicron structure and good dispersibility, and can release the brassinolide slowly and prolong the action effect.

The selenium-enriched organic nutrient regulator obtained in this embodiment should be diluted with 30 kg of water per 20 mL of selenium-rich organic nutrient regulator during use, and sprayed at the full development stage of rice flag leaves, which can effectively improve the quality of rice and improve the quality of rice by 0.1 -Selenium content of 0.2mg/kg.

Example 2:

1) Take by weighing 2g chitosan powder, be dissolved in the acetic acid solution of 100mL 2% completely under stirring.

2) Add 6g of sodium selenite, stir to dissolve.

3) Add 1 g each of zinc and boron to the solution obtained in step 2, and stir evenly.

4) Weigh 4 mg of brassinolide, dissolve it in 10 mL of 95% ethanol, slowly add it to the solution obtained in step 3, and add 1 g of Tween-80.

5) After adjusting the pH value to 5.5 with an acetic acid solution, use an acetic acid solution with a concentration not higher than 2% to set the volume to 200 mL, and stir for 30 minutes to obtain 30 g/L of selenium and 20 mg/L of brassinolide. Selenium-enriched organic nutrition regulator.

The selenium-enriched organic nutrient regulator obtained in this embodiment should be diluted with 30 kg of water per 20 mL of selenium-rich organic nutrient regulator during use, and sprayed at the full development stage of rice flag leaves, which can effectively improve the quality of rice and improve the quality of rice by 0.1 -Selenium content of 0.2mg/kg.

Example 3:

1) Weigh 2g of agricultural chitosan oligosaccharide and dissolve it in water completely under stirring.

2) Add 6g of sodium selenite, stir to dissolve.

3) Add 1g each of other trace elements (Zn+B) and stir to dissolve.

4) Weigh 4 mg of brassinolide, dissolve it in 10 mL of 95% ethanol, slowly add it to the solution obtained in step 3, and add 1 g of Tween-80.

5) Adjust the pH value to 6.0 with acetic acid, stir evenly, and adjust the volume to 200mL with water to prepare a selenium-enriched organic nutritional regulator containing 30g/L selenium and 20mg/L brassinolide.

The selenium-enriched organic nutrient regulator obtained in this embodiment should be diluted with 30 kg of water per 20 mL of selenium-rich organic nutrient regulator during use, and sprayed at the full development stage of rice flag leaves, which can effectively improve the quality of rice and improve the quality of rice by 0.1 -Selenium content of 0.2mg/kg.

Example 4:

1) Weigh 2g of agricultural chitosan oligosaccharide and dissolve it in 100mL of water completely under stirring.

2) Add 6g of sodium selenite, stir to dissolve.

3) Add 1g each of other trace elements (Zn+B) and stir to dissolve.

4) Weigh 4g of naturally extracted brassinolide (containing 0.1% brassinolide), dissolve it in 30mL of 95% alcohol, slowly add it to the solution (2), and add 1g of Tween-80.

5) Adjust the pH value to 6.0 with acetic acid, adjust the volume to 200mL with water, and stir evenly to prepare a selenium-enriched organic nutrition regulator containing 30g/L selenium and 20mg/L brassinolide.

The selenium-enriched organic nutrient regulator obtained in this embodiment should be diluted with 60kg of water per 60mL and sprayed at the grape fruiting stage during use, which can effectively increase the sugar content of grapes and reduce acidity, and increase the fresh grape by 0.01-0.02mg /kg selenium content, and enhanced the ability of grapes to resist diseases and insect pests.

Example 5:

The steps are the same as in Example 2, the selenium content is 30g/L, the natural brassinolide is 20mg/L, and Triton 100 of 5g/L is used, and the selenium-enriched organic nutrition regulator 60mL is mixed with 60kg of water and sprayed at the fruiting stage of the grapes. It can effectively increase the sugar content of grapes and reduce acidity, increase the selenium content of grapes by 0.01-0.02mg/kg, and enhance the ability of grapes to resist diseases and insect pests.

Embodiment 6:

The steps are the same as in Example 2, the selenium content is 30g/L, the natural brassinolide is 20mg/L, each of zinc and boron is 5g/L, 5g/L of Triton 100, and 20mL of the selenium-enriched organic nutrition regulator is mixed with water Spraying 40kg at the fruiting stage of beans can effectively increase the yield of beans, increase the selenium content of beans by 0.04-0.06mg/kg, and enhance the ability of beans to resist diseases and insect pests.

Embodiment 7:

1) Weigh 5kg of agricultural oligosaccharides and dissolve them in 400L of water completely under stirring.

2) Weigh 15kg of sodium selenite, dissolve it completely in 40L of water under stirring, and then add it to the solution obtained in step 1 while stirring.

3) Add 2kg each of other trace elements (Zn+B) and stir to dissolve.

4) Weigh 8kg of natural extracted brassinolide (containing 0.1% brassinolide), dissolve it in 30L 95% ethanol, slowly add it to solution 2), and add 5L Tween-80.

5) Adjust the pH value to 6.0 with acetic acid, adjust the volume to 500 L with water, and stir evenly to prepare a selenium-enriched organic nutritional regulator containing 30 g/L of selenium and 20 mg/L of brassinolide.

6) The assembly line is divided into 10ml bags, 2 bags of special selenium-enriched organic nutrition regulators for rice.

The above seven implementations are all selenium-enriched organic nutrition regulators containing 30 g/L selenium and 20 mg/L brassinolide. Within the scope of the present invention, the inventors also prepared the following batches of selenium-enriched organic nutritional regulators, as shown in Table 1.

Table I

Claims (5)

1. selenium-enriched organic nourishment modifier, it is characterized in that mainly containing following composition: chitin 15-50g/L, selenium source material in selenium 10-50g/L, brassinolide 10-60mg/L, be used for replenishing total content 10-30g/L, the emulsifying agent 0.5-5g/L of the trace element that soil lacks, other is acetic acid solution or the water that is used to dissolve described chitin, the alcohol that is used to dissolve described brassinolide; Described chitin is a kind of in chitosan, water-soluble chitosan and the oligochitosan; Described selenium source material is selenate or selenite; Described emulsifying agent is the combination of a kind of in tween-80, Si Ben-80, the Triton-100 or two kinds, and described trace element is at least a in zinc, boron, copper, manganese, molybdenum, the iron or more than one combination.

2. selenium-enriched organic nourishment modifier according to claim 1 is characterized in that described selenium source material is sodium selenate, Sodium Selenite.

3. selenium-enriched organic nourishment modifier according to claim 1 and 2 is characterized in that it is the acetic acid solution dissolving of 0.2%-2% that chitosan adopts concentration; The ethanol concn that is used to dissolve brassinolide is not less than 95%.

4. the preparation method of the described selenium-enriched organic nourishment modifier of claim 1, it is characterized in that: chitin is dissolved in acetic acid solution or the water fully, when stirring, add selenium source material and described trace element, add alcohol-soluble brassinolide and emulsifying agent at last, again with acetic acid solution or water constant volume, make each composition reach normality, continue to stir evenly and get final product.

5. the preparation method of selenium-enriched organic nourishment modifier according to claim 1 is characterized in that: need be 5.5-6.5 with the acetate adjust pH also before the constant volume.

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