CN112956379A - Method for planting selenium-rich sweet corn by applying biological nano selenium - Google Patents
Method for planting selenium-rich sweet corn by applying biological nano selenium Download PDFInfo
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- CN112956379A CN112956379A CN202110109591.6A CN202110109591A CN112956379A CN 112956379 A CN112956379 A CN 112956379A CN 202110109591 A CN202110109591 A CN 202110109591A CN 112956379 A CN112956379 A CN 112956379A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
- A01G22/20—Cereals
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
- A01C21/005—Following a specific plan, e.g. pattern
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
- C05D9/00—Other inorganic fertilisers
- C05D9/02—Other inorganic fertilisers containing trace elements
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
The invention belongs to the technical field of crop planting. The invention provides a method for planting selenium-rich sweet corn by using biological nano selenium, wherein compound fertilizer is applied after the corn is sowed, so that the germination rate of the corn is improved; applying different nitrogen fertilizers in the seedling stage and the ear stage through fertilizer management in different periods to ensure the growth of the corn; and finally, applying the nano selenium in the tasseling period of the corn to strengthen and improve the agronomic and economic properties, quality properties and physiological properties of the corn by using exogenous selenium so as to achieve the purpose of improving the selenium content in the corn.
Description
Technical Field
The invention relates to the technical field of crop planting, in particular to a method for planting selenium-rich sweet corn by applying biological nano-selenium.
Background
Selenium is used as a main component of glutathione peroxidase (GSH-Px) in plants, is also an essential trace element for human bodies, is mainly derived from daily diet, and is deficient in selenium to cause a series of health problems, such as cardiovascular diseases, immune function impairment, certain cancers and the like. However, the existing grain crops have low selenium content and cannot meet the normal requirements of human bodies, so that a safe and effective selenium element intake mode is urgently needed so as to meet the requirements of the human bodies for selenium.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a method for planting selenium-rich sweet corn by using biological nano selenium.
In order to achieve the above object, the present invention provides the following technical solutions:
the invention provides a planting method of selenium-rich sweet corn, which comprises the following steps:
(1) soil preparation, sowing and compound fertilizer application;
(2) carrying out fertilizer management on corns in batches;
fertilizing in the seedling stage: applying 8-10 kg of nitrogen fertilizer per mu;
fertilization in ear period: applying 10-14 kg of nitrogen fertilizer per mu;
(3) applying nano selenium: applying 200-400 mL of nano selenium per mu in the staminate stage.
Preferably, the time for soil preparation in step (1) is 3 months and 15 days to 3 months and 20 days.
Preferably, the sowing time in the step (1) is 3 months and 25 days to 3 months and 30 days;
the variety of the seeding is Rongyu sweet No. 9, Chuangmei No. 1, Taimei sweet No. 2 or Jinguan 597.
Preferably, the seeding scale in the step (1) is 2800-3200 plants per mu.
Preferably, the amount of the compound fertilizer in the step (1) is 40-60 kg/mu.
Preferably, the nitrogen fertilizer in the step (2) is urea.
Preferably, in the step (2), the fertilizing time in the seedling stage is 9-11 visible leaves of the corn.
Preferably, the time for applying the fertilizer in the ear stage in the step (2) is 6 months, 20 days to 6 months, 25 days.
Preferably, the nano-selenium is applied in the step (3) for 7 months and 8 days to 7 months and 12 days.
Preferably, the concentration of the nano selenium in the step (3) is 4500-5500 mg/L; mixing nano selenium and water and applying, wherein the dosage ratio of the nano selenium to the water is 1 g: 14 to 34L.
The particle size of the nano selenium is 40-270 nm.
The invention provides a planting method of selenium-rich sweet corn, which is characterized in that compound fertilizer is applied after the corn is sowed, so that the germination rate of the corn is improved; applying different amounts of nitrogen fertilizers in the seedling stage and the ear stage through fertilizer management in different periods to ensure the growth of the corn; and finally, applying the nano selenium in the tasseling period of the corn to strengthen and improve the agronomic and economic properties, quality properties and physiological properties of the corn by using exogenous selenium so as to achieve the purpose of improving the selenium content in the corn.
Detailed Description
The invention provides a planting method of selenium-rich sweet corn, which comprises the following steps:
(1) soil preparation, sowing and compound fertilizer application;
(2) carrying out fertilizer management on corns in batches;
fertilizing in the seedling stage: applying 8-10 kg of nitrogen fertilizer per mu;
fertilization in ear period: applying 10-14 kg of nitrogen fertilizer per mu;
(3) applying nano selenium: applying 200-400 mL of nano selenium per mu in the staminate stage.
In the present invention, the time for soil preparation in step (1) is preferably 3 months 15 to 3 months 20 days, more preferably 3 months 16 to 3 months 19 days, and still more preferably 3 months 17 to 3 months 18 days.
In the present invention, the time for seeding in the step (1) is preferably 3 months and 25 to 3 months and 30 days, more preferably 3 months and 26 to 3 months and 29 days, and still more preferably 3 months and 27 to 3 months and 28 days.
In the invention, the variety of the seeding is preferably Rongyu sweet No. 9, Chuangmei No. 1, Taimei sweet No. 2 or Jinguan 597.
In the invention, the corn variety is fresh sweet corn, the sugar content of the fresh sweet corn is higher than that of common corn, and the purpose of supplementing selenium can be achieved more quickly.
In the present invention, the scale of the seeding in the step (1) is preferably 2800 to 3200 plants per mu, more preferably 2900 to 3100 plants, and still more preferably 2950 to 3050 plants.
In the invention, the dosage of the compound fertilizer in the step (1) is preferably 40-60 kg/mu, more preferably 44-56 kg/mu, and even more preferably 48-52 kg/mu.
In the present invention, the nitrogen fertilizer in the step (2) is preferably urea.
In the invention, the time for applying the fertilizer in the seedling stage in the step (2) is preferably 9-11 visible leaves of the corn, and more preferably 10 visible leaves of the corn.
In the invention, in the step (2), 8-10 kg of nitrogen fertilizer is preferably applied to each mu of seedling stage, more preferably 8.4-9.6 kg, and even more preferably 8.8-9.2 kg.
In the present invention, the time for applying the fertilizer in the heading stage in the step (2) is preferably 6 months 20 to 6 months 25 days, more preferably 6 months 21 to 6 months 24 days, and still more preferably 6 months 22 to 6 months 23 days.
In the invention, in the step (2), 10-14 kg of nitrogen fertilizer is preferably applied per mu in the ear period, more preferably 11-13 kg, and even more preferably 11.5-12.5 kg.
In the present invention, the nano selenium is preferably applied for a period of time ranging from 7 months 8 days to 7 months 12 days, and more preferably ranging from 7 months 9 days to 7 months 11 days in the step (3).
In the invention, the concentration of the nano selenium in the step (3) is preferably 4500-5500 mg/L, more preferably 4600-5400 mg/L, and even more preferably 4800-5200 mg/L.
In the invention, in the step (3), preferably 200-400 mL of nano-selenium is applied per mu in the stamina period, more preferably 240-360 mL, and even more preferably 280-320 mL.
In the present invention, the nano selenium and water are mixed and applied in the step (3), and the dosage ratio of the nano selenium to the water is preferably 1 g: 14-34L, more preferably 1 g: 18-30L, more preferably 1 g: 22-26L
In the invention, the particle size of the nano selenium is preferably 40-270 nm, more preferably 100-210 nm, and even more preferably 150-160 nm.
The technical solutions provided by the present invention are described in detail below with reference to examples, but they should not be construed as limiting the scope of the present invention.
Example 1
Preparing soil in 18 days in 3 months, sowing 3000 Rongyu sweet No. 9 plants in 25 days in 3 months, applying compound fertilizer immediately after sowing, and applying 50 kg of compound fertilizer per mu; applying 9kg of urea to each mu of corn in a seedling stage with 10 visible leaves of the corn, and applying 12kg of urea to each mu of corn in a ear stage of 6 months and 23 days; and (3) applying 300mL of nano selenium with the concentration of 5000mg/L per mu in 10 days after 7 months, mixing 300mL of nano selenium with 34.5L of water, applying the mixture until the grain size of the nano selenium is 80nm, and performing normal water and fertilizer management in the rest time until the corn is harvested.
The corn obtained in this example was subjected to the performance measurement of total selenium content, organic selenium content, ear length, ear thickness, bald tip length, hundred grain weight and sugar, and the measurement results are recorded in table 1.
Example 2
Preparing soil 20 days in 3 months, sowing No. 1 sweet of 3100 plants in 26 days in 3 months, applying compound fertilizer immediately after sowing, and applying 60 kg of compound fertilizer per mu; applying 8kg of urea to each mu of corn in a seedling stage with visible corn leaves of 9 leaves, and applying 10kg of urea to each mu of corn in a ear stage of 22 days after 6 months; and (3) applying 280mL of nano selenium with the concentration of 5500mg/L per mu in 7 months and 10 days, mixing 280mL of nano selenium with 28L of water, applying the mixture until the particle size of the nano selenium is 160nm, and performing normal water and fertilizer management in the rest time until the corn is harvested.
The corn obtained in this example was subjected to the performance measurement of total selenium content, organic selenium content, ear length, ear thickness, bald tip length, hundred grain weight and sugar, and the measurement results are recorded in table 1.
Example 3
Preparing soil 16 days in 3 months, sowing 2900 plants of Taimei sweet No. 2 plants in 27 days in 3 months, applying compound fertilizer immediately after sowing, and applying 48 kilograms of compound fertilizer per mu; applying 10kg of urea to each mu of corn in a seedling stage with 11 visible leaves of the corn, and applying 11kg of urea to each mu of corn in a ear stage of 24 days at 6 months; 400mL of nano selenium with the concentration of 4500mg/L is applied to each mu in 7 months and 10 days, 400mL of nano selenium and 54L of water are mixed and applied, the particle size of the nano selenium is 180nm, and normal water and fertilizer management is carried out in the rest time until the corn is harvested.
The corn obtained in this example was subjected to the performance measurement of total selenium content, organic selenium content, ear length, ear thickness, bald tip length, hundred grain weight and sugar, and the measurement results are recorded in table 1.
Example 4
Preparing soil at 18 days in 3 months, sowing 3000 golden crowns 597 in 30 days in 3 months, applying compound fertilizer immediately after sowing, and applying 58 kg of compound fertilizer per mu; applying 9.5kg of urea to each mu of corn in a seedling stage with 10 visible leaves of the corn, and applying 11.5kg of urea to each mu of corn in a ear stage of 22 days in 6 months; and (3) applying 230mL of nano selenium with the concentration of 5300mg/L per mu in 7 months and 10 days, mixing 230mL of nano selenium with 22L of water, applying the mixture until the particle size of the nano selenium is 140nm, and performing normal water and fertilizer management in the rest time until the corn is harvested.
The corn obtained in this example was subjected to the performance measurement of total selenium content, organic selenium content, ear length, ear thickness, bald tip length, hundred grain weight and sugar, and the measurement results are recorded in table 1.
Comparative example
A control group is set for each corn variety in the examples 1-4, and the same planting method as the examples is adopted, except that nano-selenium is not sprayed.
And (3) performing performance measurement on the total selenium content, the organic selenium content, the fruit ear length, the fruit ear thickness, the bald tip length, the hundred grain weight and the sugar content of the corn obtained by the comparative example, wherein the sugar content is the tested sugar content in the dried corn. The results of the measurements are reported in table 1.
TABLE 1 measurement results
According to the embodiment, the selenium-rich sweet corn is obtained by applying the compound fertilizer before sowing, performing different nitrogen fertilizer management on the seedling stage and the ear stage, and finally applying the nano selenium in the tasseling stage; the results show that the planting method provided by the application can effectively improve the total selenium content and the organic selenium content in the corn, greatly improve other properties of the corn, obviously improve the length and the thickness of the cluster, greatly reduce the bald tip length, plumper corn grains, increase the organic substances of the corn and increase the weight of the corn per hundred grains. The corn obtained by the planting method provided by the invention has greatly increased sugar content, and is convenient for popularization to the market.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The planting method of the selenium-rich sweet corn is characterized by comprising the following steps:
(1) soil preparation, sowing and compound fertilizer application;
(2) carrying out fertilizer management on corns in batches;
fertilizing in the seedling stage: applying 8-10 kg of nitrogen fertilizer per mu;
fertilization in ear period: applying 10-14 kg of nitrogen fertilizer per mu;
(3) applying nano selenium: applying 200-400 mL of nano selenium per mu in the staminate stage.
2. The planting method of claim 1, wherein the period of soil preparation in step (1) is from 3 months to 15 days to 3 months to 20 days.
3. The planting method according to claim 2, wherein the sowing time in the step (1) is 3 months and 25 days to 3 months and 30 days;
the variety of the seeding is Rongyu sweet No. 9, Chuangmei No. 1, Taimei sweet No. 2 or Jinguan 597.
4. The planting method according to any one of claims 1 to 3, wherein the seeding scale in step (1) is 2800 to 3200 plants per mu.
5. The planting method according to claim 4, wherein the amount of the compound fertilizer used in step (1) is 40-60 kg/mu.
6. The planting method of claim 1 or 5, wherein the nitrogen fertilizer in step (2) is urea.
7. The planting method of claim 6, wherein the fertilization time in the seedling stage in the step (2) is 9-11 visible leaves of the corn.
8. The planting method of claim 7, wherein the spike-stage fertilization in step (2) is carried out for a period of from 6 months to 20 days to 6 months to 25 days.
9. The planting method of claim 7 or 8, wherein the nano-selenium is applied in step (3) for a period of time ranging from 7 months 8 days to 7 months 12 days.
10. The planting method of claim 1, 2, 3, 5, 7 or 8, wherein the concentration of nano-selenium in the step (3) is 4500-5500 mg/L; mixing nano selenium and water and applying, wherein the dosage ratio of the nano selenium to the water is 1 g: 14-34L;
the particle size of the nano selenium is 40-270 nm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110109591.6A CN112956379A (en) | 2021-01-26 | 2021-01-26 | Method for planting selenium-rich sweet corn by applying biological nano selenium |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110109591.6A CN112956379A (en) | 2021-01-26 | 2021-01-26 | Method for planting selenium-rich sweet corn by applying biological nano selenium |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771239A (en) * | 2012-08-15 | 2012-11-14 | 苏州硒谷科技有限公司 | Method for improving nano-selenium fertilizer absorption efficiency of corn |
| CN102771294A (en) * | 2012-08-15 | 2012-11-14 | 苏州硒谷科技有限公司 | Fruit corn capable of quantitatively complementing selenium and production method thereof |
| CN104186150A (en) * | 2014-08-19 | 2014-12-10 | 安徽省富硒香生物食品集团有限公司 | Method for cultivating corns rich in selenium, zinc and ferrum |
| CN104355740A (en) * | 2014-10-31 | 2015-02-18 | 恩施茂和食品有限公司 | Selenium-containing trace element corn leaf fertilizer and cultivation technique thereof for selenium-rich corn |
-
2021
- 2021-01-26 CN CN202110109591.6A patent/CN112956379A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102771239A (en) * | 2012-08-15 | 2012-11-14 | 苏州硒谷科技有限公司 | Method for improving nano-selenium fertilizer absorption efficiency of corn |
| CN102771294A (en) * | 2012-08-15 | 2012-11-14 | 苏州硒谷科技有限公司 | Fruit corn capable of quantitatively complementing selenium and production method thereof |
| CN104186150A (en) * | 2014-08-19 | 2014-12-10 | 安徽省富硒香生物食品集团有限公司 | Method for cultivating corns rich in selenium, zinc and ferrum |
| CN104355740A (en) * | 2014-10-31 | 2015-02-18 | 恩施茂和食品有限公司 | Selenium-containing trace element corn leaf fertilizer and cultivation technique thereof for selenium-rich corn |
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