CN113396665A - Method for enriching selenium nutrition of rice seeds by complexing potassium fulvate - Google Patents
Method for enriching selenium nutrition of rice seeds by complexing potassium fulvate Download PDFInfo
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- A01C1/00—Apparatus, or methods of use thereof, for testing or treating seed, roots, or the like, prior to sowing or planting
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Abstract
The invention relates to a method for enriching selenium nutrition of rice seeds by complexing potassium fulvate, belonging to the technical field of rice seed nutrition enrichment. The invention provides a method for enriching selenium by complexing potassium fulvate to strengthen rice seeds, aiming at solving the problem of unstable selenium nutrition enrichment in the existing selenium-enriched rice planting process. The invention accelerates the complex reaction of biochemical potassium fulvate and sodium selenite, improves the penetration speed and the penetration uniformity of the organic selenium compound in the rice seeds after chest breaking, has larger selenium enrichment amount and better consistency, and can obtain the rice seeds with more uniform enrichment increment.
Description
Technical Field
The invention belongs to the technical field of rice seed nutrition enrichment, and particularly relates to a method for enriching selenium nutrition of rice seeds by complexing potassium fulvate.
Background
The selenium-rich rice belongs to functional agricultural products and has high nutritive value. In the planting process of the selenium-rich rice, besides natural selenium-rich soil, a mode of spraying selenium on rice leaf surfaces is also commonly adopted to ensure the selenium-rich content of the selenium-rich rice. However, in the actual planting process of selenium-rich paddy, the stability of the selenium content in the rice is uncontrollable, on one hand, the solubility and the effectiveness of selenium in soil are low, and the absorption capacity of paddy to selenium is weak; on the other hand, the natural factors are not controllable, and the selenium absorption of the rice is influenced by excessive rainfall. The leaf surface selenium spraying mode is easy to cause the non-uniform content of selenium due to improper operation, the selenium-rich rice is not famous and practical when the selenium is too little, and the selenium is harmful to human bodies when the selenium is too much.
Disclosure of Invention
In order to solve the problem of unstable selenium nutrition enrichment in the existing selenium-rich paddy planting process, the invention provides a method for strengthening selenium nutrition enrichment of paddy seeds by potassium fulvate complexation.
The technical scheme of the invention is as follows:
the invention provides a method for enriching selenium nutrition of rice seeds by complexing potassium fulvate, which comprises the steps of bagging the rice seeds, arranging the rice seeds in a staggered manner layer by layer, soaking the seeds for accelerating germination until the seeds germinate to reach a chest-breaking state, adding sodium selenite and biochemical potassium fulvate into seed soaking water to obtain selenium nutrition enrichment liquid, and enabling the selenium nutrition enrichment liquid to circularly permeate water from bottom to top on the rice seeds in the chest-breaking state through a water pump in the selenium nutrition enrichment process so that the content of newly added selenium in the rice seeds reaches a relatively saturated state, thereby completing selenium nutrition enrichment of the rice seeds.
Further, the rice seeds are bagged in a bag with the volume not more than 65% of the bag volume, and each bag contains 15-20 kg of rice seeds.
Further, the seed soaking is that the seed soaking bag is immersed into seed soaking water 10-15 cm higher than the seed soaking bag, and the seed soaking water is circulated and permeated through the seed soaking bag from bottom to top through a water pump until the seeds germinate to reach a chest breaking state.
Further, the seed soaking temperature is 32-33 ℃.
Furthermore, the content of sodium selenite in the selenium nutrition-enriched liquid is 150-160 mg/L.
Further, the content of biochemical potassium fulvate in the selenium nutrition strengthening solution is 3100-3500 mg/L.
Further, the biochemical fulvic acid potassium is brown powder, the water content is less than or equal to 2%, the fulvic acid content is 50-55%, and the potassium-K is dry basis2The content of O is 10-12%.
Furthermore, the selenium nutrition enrichment temperature is 26-27 ℃.
Furthermore, the flow rate of the water pump is 3-4 m3/h。
Furthermore, the selenium nutrition enrichment time is 27-36 h.
The invention has the beneficial effects that:
the invention provides a method for strengthening selenium nutrition enrichment of rice seeds by complexing potassium fulvate, which utilizes biochemical potassium fulvate to perform a complexing reaction with sodium selenite, takes selenium ions as central ions, and bonds one or more amino acid ligands in the biochemical potassium fulvate through covalent bonds and ionic bonds to form an organic selenium compound. More inorganic selenium sodium selenite and organic selenium compound nutrient substances permeate into the seed coats along with the nutrient enrichment liquid from the damaged regions of the seed coats of the rice seeds with broken chests in the germination accelerating process after the rice seeds permeate water and break the chests, so that the absorption of selenium nutrient components by the germination accelerating rice seeds with broken chests is promoted, and the accumulation level of the organic selenium compounds in endosperm is improved. With the further germination of the rice seeds, the transfer of the organic selenium compounds from the endosperm to the embryo and the radicle is accelerated until the newly increased selenium content in the rice seeds reaches a higher accumulation level, and the enrichment of selenium nutrition and the biotransformation of inorganic selenium to the organic selenium form are completed.
The invention accelerates the complex reaction process of biochemical potassium fulvate and sodium selenite by circulating water permeable germination acceleration, and improves the penetration speed and the penetration uniformity of the organic selenium compound in the rice seeds after chest breaking. The method has the advantages of larger selenium enrichment amount, better enrichment consistency and capability of obtaining rice seeds with more uniform enrichment increment.
The rice seeds for sowing after selenium nutrition enrichment of the invention can be used for rice, rice straws and other usable parts after rice is mature, and the usable parts also contain higher amount of organic selenium nutrient substances, thereby further improving the economic value of rice planting.
Detailed Description
The technical solutions of the present invention are further described below with reference to the following examples, but the present invention is not limited thereto, and any modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention. The process equipment or apparatus not specifically mentioned in the following examples are conventional in the art, and if not specifically mentioned, the raw materials and the like used in the examples of the present invention are commercially available; unless otherwise specified, the technical means used in the examples of the present invention are conventional means well known to those skilled in the art.
Example 1
The embodiment provides a method for enriching selenium nutrition of rice seeds by complexing potassium fulvate, which comprises the following specific steps:
step one, bagging rice seeds: putting the aired rice seeds into special high-water-permeability germination accelerating mesh bags, wherein the number of the seeds in the bags is not more than 65% of the maximum capacity of the bags, each bag contains 15-20 kg of rice seeds, the bags are not too large, and the bags are sealed for later use;
step two, staggered arrangement layer by layer: placing bagged rice seeds on a seed bag base plate in a water permeable container according to layers, reserving a certain gap between the same layer of seed bags, and arranging adjacent layers of seed bags in a staggered manner to ensure that the seed bags are uniformly subjected to oxygen, water and heat;
step three, soaking seeds and accelerating germination until the seeds germinate to reach a chest-breaking state:
according to the quantity of rice seeds to be enriched and strengthened and the principle that the rice seeds are 10-15 cm higher than the top edge of a seed bag in a water permeable container, injecting a proper amount of tap water which meets the reference standard into a hot water tank to serve as seed soaking water, and starting an electric heating rod switch to enable the seed soaking water in the hot water tank to be maintained at 33-34 ℃; the lift flow of the opening is 30-40 m and is 3-4 m3The water pump is characterized in that seed soaking water at 33-34 ℃ permeates the bagged rice seeds from bottom to top through the water feeding pipe, then the seed soaking water flows back into the hot water tank through the water return pipe, the water is circulated and permeated until the bagged rice seeds reach a chest-breaking state, the water pump is turned off, and the seed soaking water in the water permeable container automatically flows back into the hot water through the water feeding pipe and the water pump by means of gravityAnd (7) a box. The temperature of the rice seeds in the bag is maintained to be 32-33 ℃ in the whole process, and no illumination requirement exists;
step four, preparing selenium nutrition strengthening liquid:
according to the water temperature condition in the hot water tank, adding room-temperature tap water into the hot water tank to enable seed soaking water in the hot water tank to be maintained at 27-28 ℃, if the seed soaking water temperature is not 27-28 ℃, starting an electric heating rod switch to enable the seed soaking water in the hot water tank to be maintained at 27-28 ℃, adding sodium selenite and biochemical potassium fulvate into the seed soaking water, and circularly stirring the seed soaking water in the hot water tank by using a special circulating pump to obtain selenium nutrition strengthening liquid, wherein the content of the sodium selenite in the selenium nutrition strengthening liquid is 150-160 mg/L, the content of the biochemical potassium fulvate is 3100-3500 mg/L, the biochemical potassium fulvate used in the embodiment is brown powder, the water content is less than or equal to 2%, the content of the fulvic acid is 50-55%, and the content of dry potassium-K is less than or equal to 2%2The content of O is 10-12%;
step five, selenium nutrition enrichment:
the lift flow of the opening is 30-40 m and is 3-4 m3A water pump for pumping selenium nutrient enrichment liquid with sodium selenite nutrient and biochemical potassium fulvate complexing agent into a water permeable container through a water feeding pipe, performing water permeable germination acceleration on bagged chest-broken rice seeds from bottom to top, and then returning the bagged chest-broken rice seeds into a hot water tank through a water return pipe; in the circulating water-permeable germination accelerating process, nutrient components to be enhanced penetrate through the seed coats with softened tissues in the form of sodium selenite, biochemical potassium fulvate and organic western compounds generated by the complex reaction of the sodium selenite and the biochemical potassium fulvate, particularly penetrate into the seed coats of the rice seeds through a rice seed chest-breaking channel, namely a damaged region of the seed coats, promote the transmission of the selenium nutrient components to embryos and radicles in the endosperm to be accelerated, accelerate germination after 27-36 h of chest breaking of the rice seeds, enhance the selenium nutrient penetration by the biochemical potassium fulvate until the content of newly added nutrient components in the rice seeds reaches a higher accumulation level, and complete the complexation enhanced selenium nutrient enrichment of the biochemical potassium fulvate of the rice seeds after chest breaking and the biotransformation of inorganic selenium to an organic selenium form; the water pump is closed, and the selenium nutrition strengthening liquid in the water permeable container automatically flows into the hot water tank; the temperature of the rice seeds in the bag is 26-27 ℃ in the whole selenium nutrition enrichment process, and no illumination requirement exists; opening the water permeable container, taking out the bagged rice seeds, draining, removing the bags, airing and removing the rice seeds outside the rice budsAnd (5) partially dissociating water, and filling the water into a bud seed container for later sowing.
The selenium nutrient components to be enriched are intensively permeated into the rice seed coats in three coexistence forms, firstly, biochemical potassium fulvate and sodium selenite carry out complex reaction outside the rice seed coats, and the generated organic selenium compounds permeate into the rice seeds from the damaged regions of the rice seed coats along with the selenium nutrient enrichment liquid; secondly, biochemical potassium fulvate and sodium selenite permeate into the seed coats from the damaged areas of the seed coats of the rice along with the selenium nutrition strengthening liquid respectively, and generate an organic selenium compound through a complex reaction in the permeation process; and thirdly, the biochemical potassium fulvate and the sodium selenite permeate into the seed coats from the damaged regions of the seed coats of the rice seeds along with the selenium nutrition strengthening liquid respectively, and carry out a complex reaction in the rice seeds to generate the organic selenium compound. The accumulation level of the organic selenium compound in the endosperm is improved through the complexation and the strengthening of the biochemical potassium fulvate, and the organic selenium compound is transferred from the endosperm to the embryo and radicle in an accelerated way along with the further germination of the rice seeds until the content of newly added nutrient components in the embryo reaches a higher accumulation level.
Example 2
In this embodiment, the method for enriching selenium nutrition of rice seeds by using potassium fulvate complexation to perform selenium nutrition enrichment on longyang No. 20 rice seeds comprises the following specific steps:
step one, bagging rice seeds: the method comprises the following steps of (1) putting the aired Longyang No. 20 rice seeds into special high-water-permeability germination accelerating mesh bags, wherein the number of the seeds is 55% of the maximum capacity of each bag, 15kg of rice seeds are packed in each bag, the bags are not too large, and the bags are sealed for later use;
step two, staggered arrangement layer by layer: placing bagged rice seeds on a seed bag base plate in a water permeable container according to layers, reserving a certain gap between the same layer of seed bags, and arranging adjacent layers of seed bags in a staggered manner to ensure that the seed bags are uniformly subjected to oxygen, water and heat;
step three, soaking seeds until the rice seeds germinate to reach a chest-breaking state:
according to the quantity of rice seeds to be enriched and enriched, on the principle that the rice seeds are 15cm higher than the top edge of the inner bag of the permeable container, a proper amount of tap water meeting the reference standard is injected into the hot water tank to serve as seed soaking water, and the electric heating rod switch is turned on to enable the seed soaking water in the hot water tank to be maintained at 33 DEG C(ii) a The lift flow of the opening is 30-40 m and is 4m3In the water pump of the/h, seed soaking water at 33 ℃ permeates the bagged rice seeds from bottom to top through the water feeding pipe, then flows back into the hot water tank through the water return pipe, the water is circulated and permeated until the bagged rice seeds reach a chest-breaking state, the water pump is closed, and the seed soaking water in the water permeable container automatically flows back into the hot water tank through the water feeding pipe and the water pump by means of gravity. The temperature of the rice seeds in the bag is maintained to be 32-33 ℃ in the whole process, and no illumination requirement exists;
step four, preparing selenium nutrition strengthening liquid:
according to the water temperature condition in the hot water tank, adding room-temperature tap water into the hot water tank to enable seed soaking water in the hot water tank to be maintained at 27 ℃, if the seed soaking water temperature is not 27 ℃, starting an electric heating rod switch to enable the seed soaking water in the hot water tank to be maintained at 27 ℃, adding sodium selenite and biochemical fulvic acid potassium into the seed soaking water, and circularly stirring the seed soaking water in the hot water tank by using a special circulating pump to obtain selenium nutrition strengthening liquid, wherein the content of the sodium selenite in the selenium nutrition strengthening liquid is 150mg/L, the content of the biochemical fulvic acid potassium is 3100mg/L, the biochemical fulvic acid potassium used in the embodiment is brown powder, the water content is less than or equal to 2%, the fulvic acid content is 50-55%, and the dry-based potassium-2The content of O is 10-12%;
step five, selenium nutrition enrichment:
the lift flow of the opening is 30-40 m and is 4m3A water pump for pumping selenium nutrient enrichment liquid with sodium selenite nutrient and biochemical potassium fulvate complexing agent into a water permeable container through a water feeding pipe, performing water permeable germination acceleration on bagged chest-broken rice seeds from bottom to top, and then returning the bagged chest-broken rice seeds into a hot water tank through a water return pipe; in the process of circulating water-permeable germination acceleration, nutrient components to be enhanced penetrate through the seed coats with softened tissues in the form of sodium selenite, biochemical potassium fulvate and organic western compounds generated by the complex reaction of the sodium selenite, the biochemical potassium fulvate and the organic western compounds through an aqueous solution, particularly a rice seed chest-breaking channel, namely a damaged area of the seed coats penetrates into the seed coats of rice seeds, so that the selenium nutrient components are promoted to be transmitted to germs and radicles in endosperm in an accelerated manner, after 32 hours of rice seed chest breaking, the biochemical potassium fulvate enhances the selenium nutrient penetration until the content of newly added nutrient components in the rice seeds reaches a higher accumulation level, and the rice seed biochemical potassium fulvate complex enhanced selenium nutrient enrichmentBioconversion of inorganic selenium to organic selenium form; the water pump is closed, and the selenium nutrition strengthening liquid in the water permeable container automatically flows into the hot water tank; the temperature of the rice seeds in the bag is 26-27 ℃ in the whole selenium nutrition enrichment process, and no illumination requirement exists; and opening the water permeable container, taking out the bagged rice seeds, draining, removing the bags, airing to remove free moisture outside the rice bud seeds, and filling the rice bud seeds into the bud seed container for later sowing.
Example 3
In this embodiment, the method for enriching selenium nutrition of rice seeds by complexing potassium fulvate to strengthen rice seeds comprises the following steps:
step one, bagging rice seeds: the method comprises the following steps of (1) filling the rice seeds No. 7 of the sun-cured agricultural fragrant rice into special high-water-permeability germination accelerating mesh bags, wherein the filling quantity is 60% of the maximum capacity of each bag, each bag is filled with 20kg of rice seeds, the bag is not suitable to be too large, and the bag is sealed for later use;
step two, staggered arrangement layer by layer: placing bagged rice seeds on a seed bag base plate in a water permeable container according to layers, reserving a certain gap between the same layer of seed bags, and arranging adjacent layers of seed bags in a staggered manner to ensure that the seed bags are uniformly subjected to oxygen, water and heat;
step three, soaking seeds until the rice seeds germinate to reach a chest-breaking state:
according to the quantity of rice seeds to be enriched and strengthened and the principle that the rice seeds are 10cm higher than the top edge of the inner bag of the permeable container, injecting a proper amount of tap water which meets the reference standard into the hot water tank to be used as seed soaking water, and starting an electric heating rod switch to enable the seed soaking water in the hot water tank to be maintained at 34 ℃; the lift flow of the opening is 30-40 m and is 3m3In the water pump of the/h, seed soaking water at 33 ℃ permeates the bagged rice seeds from bottom to top through the water feeding pipe, then flows back into the hot water tank through the water return pipe, the water is circulated and permeated until the bagged rice seeds reach a chest-breaking state, the water pump is closed, and the seed soaking water in the water permeable container automatically flows back into the hot water tank through the water feeding pipe and the water pump by means of gravity. The temperature of the rice seeds in the bag is maintained to be 32-33 ℃ in the whole process, and no illumination requirement exists;
step four, preparing selenium nutrition strengthening liquid:
adding room temperature tap water to the hot water tank according to the water temperature in the hot water tank to maintain the seed soaking water in the hot water tank at 28 deg.C, such as seed soaking water temperature below 28 deg.CTurning on an electric bar switch to enable seed soaking water in a hot water tank to be maintained at 28 ℃, adding sodium selenite and biochemical potassium fulvate into the seed soaking water, and circularly stirring the seed soaking water in the hot water tank by using a special circulating pump to obtain selenium nutrition strengthening liquid, wherein the content of the sodium selenite in the selenium nutrition strengthening liquid is 160mg/L, the content of the biochemical potassium fulvate is 3500mg/L, the biochemical potassium fulvate used in the embodiment is a tan powder, the moisture content is less than or equal to 2%, the content of the fulvic acid is 50-55%, and the content of the dried potassium-K is dry2The content of O is 10-12%;
step five, selenium nutrition enrichment:
the lift flow of the opening is 30-40 m and is 3m3A water pump for pumping selenium nutrient enrichment liquid with sodium selenite nutrient and biochemical potassium fulvate complexing agent into a water permeable container through a water feeding pipe, performing water permeable germination acceleration on bagged chest-broken rice seeds from bottom to top, and then returning the bagged chest-broken rice seeds into a hot water tank through a water return pipe; in the process of circulating water-permeable germination acceleration, nutrient components to be enhanced penetrate through the seed coats with softened tissues in the form of sodium selenite, biochemical potassium fulvate and organic western compounds generated by the complex reaction of the sodium selenite and the biochemical potassium fulvate, particularly penetrate into the seed coats of the rice seeds through a rice seed chest-breaking channel, namely a damaged area of the seed coats, promote the transmission of the selenium nutrient components to embryos and radicles in the endosperm to be accelerated, accelerate germination after 28 hours of chest breaking of the rice seeds, enhance the selenium nutrient penetration by the biochemical potassium fulvate until the content of the newly added nutrient components in the rice seeds reaches a higher accumulation level, and complete the complexation enhanced selenium nutrient enrichment of the biochemical potassium fulvate of the rice seeds and the biotransformation of inorganic selenium to organic selenium forms after chest breaking; the water pump is closed, and the selenium nutrition strengthening liquid in the water permeable container automatically flows into the hot water tank; the temperature of the rice seeds in the bag is 26-27 ℃ in the whole selenium nutrition enrichment process, and no illumination requirement exists; and opening the water permeable container, taking out the bagged rice seeds, draining, removing the bags, airing to remove free moisture outside the rice bud seeds, and colliding the rice bud seeds into the bud seed container for later sowing.
Example 4
In this embodiment, the method for enriching selenium nutrition of rice seeds by using potassium fulvate complexation to perform selenium nutrition enrichment on longyang No. 16 rice seeds comprises the following specific steps:
step one, bagging rice seeds: the method comprises the following steps of putting the aired Longyang No. 16 rice seeds into special high-water-permeability germination accelerating mesh bags, wherein the number of the seeds is 60% of the maximum capacity of each seed bag, each seed bag contains 20kg of rice seeds, the seed bags are not too large, and the rice seeds are sealed for later use;
step two, staggered arrangement layer by layer: placing bagged rice seeds on a seed bag base plate in a water permeable container according to layers, reserving a certain gap between the same layer of seed bags, and arranging adjacent layers of seed bags in a staggered manner to ensure that the seed bags are uniformly subjected to oxygen, water and heat;
step three, soaking seeds until the rice seeds germinate to reach a chest-breaking state:
according to the quantity of rice seeds to be enriched and strengthened and the principle that the rice seeds are 10cm higher than the top edge of the inner bag of the permeable container, injecting a proper amount of tap water which meets the reference standard into the hot water tank to be used as seed soaking water, and starting an electric heating rod switch to enable the seed soaking water in the hot water tank to be maintained at 34 ℃; the head flow of the initial 30-40 m is 3m3In the water pump of the/h, seed soaking water at 33 ℃ permeates the bagged rice seeds from bottom to top through the water feeding pipe, then flows back into the hot water tank through the water return pipe, the water is circulated and permeated until the bagged rice seeds reach a chest-breaking state, the water pump is closed, and the seed soaking water in the water permeable container automatically flows back into the hot water tank through the water feeding pipe and the water pump by means of gravity. The temperature of the rice seeds in the bag is maintained to be 32-33 ℃ in the whole process, and no illumination requirement exists;
step four, preparing selenium nutrition strengthening liquid:
according to the water temperature condition in the hot water tank, adding room-temperature tap water into the hot water tank to enable seed soaking water in the hot water tank to be maintained at 28 ℃ if the seed soaking water temperature is not 28 ℃, starting an electric heating rod switch to enable the seed soaking water in the hot water tank to be maintained at 28 ℃, adding sodium selenite and biochemical fulvic acid potassium into the seed soaking water, and circularly stirring the seed soaking water in the hot water tank by using a special circulating pump to obtain selenium nutrition strengthening liquid, wherein the content of the sodium selenite in the selenium nutrition strengthening liquid is 155mg/L, the content of the biochemical fulvic acid potassium is 3300mg/L, the biochemical fulvic acid potassium used in the embodiment is brown powder, the water content is less than or equal to 2%, the fulvic acid content is 50-55%, and the dry-based potassium-K is2The content of O is 10-12%;
step five, selenium nutrition enrichment:
the lift flow of the opening is 30-40 m and is 3m3The water pump of the water pump per hour,the selenium nutrition strengthening liquid with the sodium selenite nutrition and biochemical fulvic acid potassium complexing agent is pumped into the water permeable container through a water feeding pipe, water permeable germination acceleration is carried out on the bagged chest-broken rice seeds from bottom to top, and then the bagged chest-broken rice seeds flow back into a hot water tank through a water return pipe; in the process of circulating water-permeable germination acceleration, nutrient components to be enhanced penetrate through the seed coats with softened tissues in the form of sodium selenite, biochemical potassium fulvate and organic western compounds generated by the complex reaction of the sodium selenite and the biochemical potassium fulvate, particularly penetrate into the seed coats of the rice seeds through a rice seed chest-breaking channel, namely a damaged area of the seed coats, promote the transmission of the selenium nutrient components to embryos and radicles in the endosperm to be accelerated, accelerate germination after 36 hours of chest breaking of the rice seeds, enhance the selenium nutrient penetration by the biochemical potassium fulvate until the content of the newly added nutrient components in the rice seeds reaches a higher accumulation level, and complete the complexation enhanced selenium nutrient enrichment of the biochemical potassium fulvate of the rice seeds and the biotransformation of inorganic selenium to organic selenium forms after chest breaking; the water pump is closed, and the selenium nutrition strengthening liquid in the water permeable container automatically flows into the hot water tank; the temperature of the rice seeds in the bag is 26-27 ℃ in the whole selenium nutrition enrichment process, and no illumination requirement exists; and opening the water permeable container, taking out the bagged rice seeds, draining, removing the bags, airing to remove free moisture outside the rice bud seeds, and filling the rice bud seeds into the bud seed container for later sowing.
In examples 2 to 4, the rice seeds are enriched by the combination of sodium selenite with the concentration of 150 to 160mg/L and biochemical potassium fulvate with the concentration of 3100 to 3500mg/L, so that the increase of organic selenium in the buds of the rice seeds reaches 300 to 350 mg/Kg. The method is the same in nutrition enrichment and enhancement method, the increase of organic selenium in the rice sprouts subjected to nutrition enhancement by adopting 30-100 mg/L sodium selenite solution is 4.5-9 times of 50-100 mg/kg, and the increase of organic selenium in the rice sprouts subjected to water permeation enhanced selenium enrichment and enhancement by only adopting 150mg/L sodium selenite without adopting biochemical potassium fulvate complexation is 3-4 times of 100-150 mg/kg. According to comparison, the method for enriching the selenium nutrition of the rice seeds by complexing and strengthening the potassium fulvate provided by the embodiment obviously increases the content of nutrient substances in the rice bud seeds and the uniformity of nutrition enrichment.
Claims (10)
1. The method for enriching the selenium nutrition of the rice seeds by complexing and strengthening the potassium fulvate is characterized in that the rice seeds are bagged and are arranged in a staggered mode layer by layer, after the seeds are soaked for germination and the seeds are germinated to reach the chest breaking state, sodium selenite and the biochemical potassium fulvate are added into seed soaking water to obtain selenium nutrition strengthening liquid, the selenium nutrition strengthening liquid is used for conducting circulating water permeation on the rice seeds in the chest breaking state from bottom to top through a water pump in the selenium nutrition enriching process, and the selenium nutrition enrichment of the rice seeds is completed when the content of newly added selenium in the rice seeds reaches a relative saturation state.
2. The method for enriching selenium nutrition of rice seeds by complexation and enrichment of potassium fulvate according to claim 1, wherein the rice seeds are bagged in a volume of no more than 65% of the bag capacity, and each bag contains 15-20 kg of rice seeds.
3. The method for enriching selenium nutrition of rice seeds by complexing potassium fulvate according to claim 1 or 2, wherein the seed soaking and germination accelerating is to immerse the seed soaking bag in seed soaking water 10-15 cm higher than the seed soaking bag, and the seed soaking water is circulated to permeate water to the seed soaking bag from bottom to top by a water pump until the rice seeds germinate to reach a chest-breaking state.
4. The method for enriching selenium nutrition of rice seeds by complexing potassium fulvate according to claim 3, wherein the seed soaking temperature is 32-33 ℃.
5. The method for enriching selenium nutrition of rice seeds by complexation and enrichment of potassium fulvate according to claim 4, wherein the content of sodium selenite in the selenium nutrition-enriched liquid is 150-160 mg/L.
6. The method for enriching selenium nutrition of rice seeds by complexing potassium fulvate according to claim 5, wherein the content of biochemical potassium fulvate in the selenium nutrition-enriched solution is 3100-3500 mg/L.
7. The method for enriching selenium nutrition of rice seeds by complexing fulvic acid potassium according to claim 6, wherein the biochemical fulvic acid potassium is brown powder, the water content is less than or equal to 2%, the fulvic acid content is 50-55%, and the potassium-K is dry-based2O content of 10 &12％。
8. The method for enriching selenium nutrition of rice seeds by complexing potassium fulvate according to claim 7, wherein the temperature for enriching selenium nutrition is 26-27 ℃.
9. The method for enriching selenium nutrition of rice seeds by complexing potassium fulvate according to claim 8, wherein the flow rate of the water pump is 3-4 m3/h。
10. The method for enriching selenium nutrition of rice seeds by complexing potassium fulvate according to claim 9, wherein the selenium nutrition enrichment time is 27-36 h.
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| CN102428780A (en) * | 2011-09-19 | 2012-05-02 | 黑龙江省农业机械工程科学研究院 | Method for increasing oxygen and rapidly accelerating germination of rice seed |
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2021
- 2021-07-02 CN CN202110750459.3A patent/CN113396665B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102428780A (en) * | 2011-09-19 | 2012-05-02 | 黑龙江省农业机械工程科学研究院 | Method for increasing oxygen and rapidly accelerating germination of rice seed |
Non-Patent Citations (3)
| Title |
|---|
| BIN DU 等: "Rice seed priming with sodium selenate: Effects on germination, seedling growth, and biochemical attributes", 《SCIENTIFIC REPORTS》 * |
| 姜云 等: "硒对稻谷发芽及富集效果影响的研究", 《现代预防医学》 * |
| 徐云 等: "Se和环境中富里酸对小麦种子发芽的影响及其生理特性", 《应用生态学报》 * |
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| CN113396665B (en) | 2022-05-13 |
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