CN111362743A - Tobacco water culture nutrient solution and preparation method thereof - Google Patents
Tobacco water culture nutrient solution and preparation method thereof Download PDFInfo
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- CN111362743A CN111362743A CN201811603102.7A CN201811603102A CN111362743A CN 111362743 A CN111362743 A CN 111362743A CN 201811603102 A CN201811603102 A CN 201811603102A CN 111362743 A CN111362743 A CN 111362743A
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- tobacco
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- nutrient solution
- sulfate heptahydrate
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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
- A01G31/00—Soilless cultivation, e.g. hydroponics
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05B—PHOSPHATIC FERTILISERS
- C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
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- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Hydroponics (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to the technical field of tobacco production, in particular to tobacco hydroponic nutrient solution and a preparation method thereof. The invention discloses a tobacco hydroponic nutrient solution which is prepared from the following components in parts by weight: potassium nitrate, calcium nitrate tetrahydrate, magnesium sulfate heptahydrate, potassium dihydrogen phosphate, trace elements, ferric salt and 3-indoleacetic acid; the trace elements are prepared from the following components: boric acid, manganese chloride tetrahydrate, zinc sulfate heptahydrate, copper sulfate pentahydrate and sodium molybdate dihydrate. The nutrient solution can provide organic nutrition and inorganic nutrition, major elements and trace elements for tobacco, and simultaneously contains physiological active factors for promoting root growth, so that the tobacco can be guided to root, the development of lateral roots is obviously promoted, the root system can grow strongly, and the problems that the root promoting effect is not obvious and the root promoting effect is poor in the conventional tobacco cultivation mode are solved.
Description
Technical Field
The invention relates to the technical field of tobacco production, in particular to tobacco hydroponic nutrient solution and a preparation method thereof.
Background
Most of the mineral nutrients and water required by tobacco plants are absorbed from the soil through the root system. The root of tobacco is not only an important absorption organ, but also a strong synthetic ability, and important organic substances such as amino acids, amides, hormones, etc. are mainly synthesized at the root, so that the root system plays an extremely important role in the nitrogen assimilation process. Nicotine is a marker substance of chemical components of tobacco, 99.5% of nicotine is synthesized at roots, especially more at root tips, and then transported to stems and leaves. Meanwhile, the tobacco roots also have a supporting function, the root-pricking depth of the tobacco roots is large, the drought resistance of tobacco plants is strong, and the tobacco plants are not easy to fall down.
However, the existing tobacco cultivation mode has no obvious effect on promoting the root and has poor effect on promoting the root.
Disclosure of Invention
The invention provides a tobacco hydroponic nutrient solution and a preparation method thereof, and solves the problems that the existing tobacco cultivation mode has unobvious root promoting effect and poor root promoting effect.
The specific technical scheme is as follows:
the invention provides a tobacco hydroponic nutrient solution which is prepared from the following components:
potassium nitrate, calcium nitrate tetrahydrate, magnesium sulfate heptahydrate, potassium dihydrogen phosphate, trace elements, ferric salt and 3-indoleacetic acid;
the trace elements are prepared from the following components:
boric acid, manganese chloride tetrahydrate, zinc sulfate heptahydrate, copper sulfate pentahydrate and sodium molybdate dihydrate.
The tobacco water culture nutrient solution provided by the invention is a water culture seedling culture nutrient solution.
Preferably, the concentration of the potassium nitrate is 0.47-0.55g/L, the concentration of the calcium nitrate tetrahydrate is 1.16-1.20g/L, the concentration of the magnesium sulfate heptahydrate is 0.45-0.53g/L, the concentration of the potassium dihydrogen phosphate is 0.10-0.14g/L, the concentration of the trace elements is 5.11-5.21mg/L, and the concentration of the iron salt is 12.54-13.54 mg/L.
Preferably, the concentration of the 3-indoleacetic acid is 1.5-2.0 mg/L.
Preferably, the concentration of the 3-indoleacetic acid is 1.75 mg/L.
Preferably, the concentration of the potassium nitrate is 0.51g/L, the concentration of the calcium nitrate tetrahydrate is 1.18g/L, the concentration of the magnesium sulfate heptahydrate is 0.49g/L, the concentration of the potassium dihydrogen phosphate is 0.12g/L, the concentration of the trace elements is 5.16mg/L, and the concentration of the iron salt is 13.04 mg/L.
Preferably, the iron salt is made from the following components: ferrous sulfate heptahydrate and EDTA-Na2。
Preferably, the concentration of the ferrous sulfate heptahydrate is 5.51-5.61mg/L, and the EDTA-Na2The concentration of (A) is 7.43-7.53 mg/L.
Preferably, the concentration of the boric acid is 2.73-2.83mg/L, the concentration of the manganese chloride tetrahydrate is 1.95-2.01mg/L, the concentration of the zinc sulfate heptahydrate is 0.20-0.26mg/L, the concentration of the copper sulfate pentahydrate is 0.07-0.08mg/L, and the concentration of the sodium molybdate dihydrate is 0.096-0.098 mg/L.
The invention also provides a preparation method of the tobacco water culture nutrient solution, which comprises the following steps:
step 1: dissolving and mixing potassium nitrate, calcium nitrate tetrahydrate, magnesium sulfate heptahydrate and potassium dihydrogen phosphate by using deionized water to obtain a first concentrated solution;
step 2: dissolving and mixing boric acid, manganese chloride tetrahydrate, zinc sulfate heptahydrate, copper sulfate pentahydrate and sodium molybdate dihydrate with deionized water to obtain a second concentrated solution;
and step 3: dissolving ferric salt to obtain a third concentrated solution;
and 4, step 4: dissolving 3-indoleacetic acid in absolute ethyl alcohol to form a fourth concentrated solution;
and 5: mixing the first, second, third and fourth concentrates with water in a volume ratio of 1: 1: 1: 10: 500, and mixing to obtain the tobacco water culture nutrient solution.
In the invention, after the tobacco hydroponics nutrient solution is obtained in step 5, the method further comprises the following steps: and (3) adjusting the pH value of the tobacco water culture nutrient solution to 6.0 +/-0.2 by using sodium hydroxide, wherein the concentration of the sodium hydroxide is 1 mol/L.
In the invention, all solvents used in the steps 1 to 4 are deionized water.
The invention also provides application of the tobacco hydroponics nutrient solution or the tobacco hydroponics nutrient solution prepared by the preparation method in tobacco cultivation, which comprises the following steps: and immersing the root system of the tobacco seedling in the tobacco hydroponics nutrient solution for culturing, intermittently introducing oxygen for 2 hours every day, and changing the tobacco hydroponics nutrient solution every 4 days to obtain the tobacco.
In the present invention, the intermittent oxygen supply is not limited to the number of times and the oxygen supply time, but is preferably performed once in the morning, once in the afternoon, and at an interval of 8 hours.
The tobacco hydroponics nutrient solution is intermittently aerated for 2 hours every day, and is changed every 4 days, so that the success rate of promoting the root of the tobacco is ensured, the efficacy is stable, and the time and the labor are not wasted.
According to the technical scheme, the invention has the following advantages:
the invention provides a tobacco water culture nutrient solution, which can provide organic nutrition and inorganic nutrition, major elements and trace elements for tobacco, and also contains a root-promoting physiological active factor 3-indoleacetic acid, and can guide tobacco to take root, obviously promote lateral root development and make root systems grow robustly.
Detailed Description
The embodiment of the invention provides a tobacco hydroponic nutrient solution and a preparation method thereof, which are used for solving the problems that the existing tobacco cultivation mode has unobvious root promoting effect and poor root promoting effect.
In order to make the objects, features and advantages of the present invention more obvious and understandable, the technical solutions in the embodiments of the present invention will be clearly and completely described below, and it should be apparent that the embodiments described below are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The tobacco water culture nutrient solution and the raw materials and reagents used in the preparation method thereof provided by the invention can be purchased from the market.
The tobacco water culture nutrient solution and the preparation method thereof provided by the invention are further explained below.
Example 1
In the preparation of the tobacco water culture nutrient solution, deionized water is used as a solvent, and the final concentration of each raw material is as follows: 0.51g/L potassium nitrate, 1.18g/L calcium nitrate tetrahydrate, 0.49g/L magnesium sulfate heptahydrate, 0.12g/L potassium dihydrogen phosphate, 5.16mg/L trace elements, 13.04mg/L iron salt, 1.75 mg/L3-indoleacetic acid and a proper amount of absolute ethyl alcohol.
Preparing 100L of tobacco water culture nutrient solution, which comprises the following steps:
1. accurately weighing 51g of potassium nitrate, 118.08g of calcium nitrate tetrahydrate, 49.29g of magnesium sulfate heptahydrate and 12g of potassium dihydrogen phosphate according to the proportion of the raw materials, sequentially adding the weighed materials into 1L of deionized water, and stirring to dissolve the materials to form a first concentrated solution;
2. accurately weighing 2.78g of boric acid, 1.98g of manganese chloride tetrahydrate, 0.23g of zinc sulfate heptahydrate, 0.075g of copper sulfate pentahydrate and 0.097g of sodium molybdate dihydrate according to the proportion of the raw materials, sequentially adding the raw materials into 1L of deionized water, and stirring and dissolving to form a second concentrated solution;
3. accurately weighing 5.56g of ferrous sulfate heptahydrate and 7.48g of EDTA-Na according to the proportion of the raw materials2Sequentially adding into 1L deionized water, stirring and dissolving to obtainA third concentrated solution;
4. accurately weighing 1.75g of 3-indoleacetic acid according to the proportion of the raw materials, adding the 3-indoleacetic acid into 35ml of absolute ethyl alcohol, shaking for dissolution, and then fixing the volume to 1L of deionized water to form a fourth concentrated solution;
5. after 50L of water is added into the liquid storage barrel, 1L of first concentrated solution is added into the liquid storage barrel and is uniformly stirred, then 100mL of second concentrated solution is added into the liquid storage barrel and is uniformly stirred, then 100mL of third concentrated solution is added into the liquid storage barrel and is uniformly stirred, then 100mL of fourth concentrated solution is added into the liquid storage barrel and is uniformly stirred, finally 48.7L of water is added into the storage barrel, and the water culture nutrient solution for promoting the root growth of tobacco water culture is obtained. The pH was adjusted to 6.0. + -. 0.2 using 1mol/L NaOH.
Comparative example 1
In the preparation of the tobacco water culture nutrient solution, deionized water is used as a solvent, and the final concentration of each raw material is as follows: 0.51g/L potassium nitrate, 1.18g/L calcium nitrate tetrahydrate, 0.49g/L magnesium sulfate heptahydrate, 0.12g/L potassium dihydrogen phosphate, 5.16mg/L trace elements, 13.04mg/L iron salt, 1.50 mg/L3-indoleacetic acid and a proper amount of absolute ethyl alcohol.
Preparing 100L of tobacco water culture nutrient solution, which comprises the following steps:
1. accurately weighing 51g of potassium nitrate, 118.08g of calcium nitrate tetrahydrate, 49.29g of magnesium sulfate heptahydrate and 12g of potassium dihydrogen phosphate according to the proportion of the raw materials, sequentially adding the weighed materials into 1L of deionized water, and stirring to dissolve the materials to form a first concentrated solution;
2. accurately weighing 2.78g of boric acid, 1.98g of manganese chloride tetrahydrate, 0.23g of zinc sulfate heptahydrate, 0.075g of copper sulfate pentahydrate and 0.097g of sodium molybdate dihydrate according to the proportion of the raw materials, sequentially adding the raw materials into 1L of deionized water, and stirring and dissolving to form a second concentrated solution;
3. accurately weighing 5.56g of ferrous sulfate heptahydrate and 7.48g of EDTA-Na according to the proportion of the raw materials2Sequentially adding the mixture into 1L of deionized water, and stirring for dissolving to form a third concentrated solution;
4. after 50L of water is added into the liquid storage barrel, 1L of first concentrated solution is added into the liquid storage barrel and is uniformly stirred, then 100mL of second concentrated solution is added into the liquid storage barrel and is uniformly stirred, then 100mL of third concentrated solution is added into the liquid storage barrel and is uniformly stirred, and finally 48.8L of water is added into the storage barrel to obtain the water culture nutrient solution for promoting the root growth of tobacco water culture. The pH was adjusted to 6.0. + -. 0.2 using 1mol/L NaOH.
Example 2
Tobacco hydroponic nutrient solution provided in example 1 and comparative example 1
The experiment is carried out in a tobacco cultivation key laboratory of the tobacco industry of the university of agriculture in Henan, the variety is Yuyan No. 6, the Yuyan No. 6 is divided into two groups, the tobacco water culture nutrient solutions provided in the embodiment 1 and the comparative example 1 are respectively used for water culture, the groups are arranged randomly, 10 repeats are arranged in each group, the nutrient solution is changed every 4 days in each group, and the oxygen is introduced intermittently for 2 hours every day.
Harvesting at leaf stage, and measuring dry matter weight of roots, total length of roots, volume of roots, number of root tips and total surface area of roots. The test results are shown in table 1.
TABLE 1 tobacco after cultivation in tobacco hydroponics nutrient solution of example 1 and comparative example 1
The dry matter weight of roots, total length of roots, volume of roots, number of tips of roots, total surface area of roots in table 1 are the average values of the respective repetitions.
As can be seen from Table 1, the tobacco cultured with the tobacco hydroponic nutrient solution of example 1 had an increased dry matter weight of 0.11g in the root, an increased total root length of 75cm and an increased root volume of 0.24cm, as compared with the tobacco cultured with the tobacco hydroponic nutrient solution of comparative example 13The number of root tips is increased by 286, and the total surface area of the roots is increased by 9cm2The tobacco water culture nutrient solution provided in example 1 can obviously promote the development of lateral roots of tobacco plants, thereby improving the growth and development conditions of the root systems of the tobacco plants.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A tobacco water culture nutrient solution is characterized by being prepared from the following components:
potassium nitrate, calcium nitrate tetrahydrate, magnesium sulfate heptahydrate, potassium dihydrogen phosphate, trace elements, ferric salt and 3-indoleacetic acid;
the trace elements are prepared from the following components:
boric acid, manganese chloride tetrahydrate, zinc sulfate heptahydrate, copper sulfate pentahydrate and sodium molybdate dihydrate.
2. A tobacco hydroponics nutrient solution according to claim 1, wherein the potassium nitrate is at a concentration of 0.47-0.55g/L, the calcium nitrate tetrahydrate is at a concentration of 1.16-1.20g/L, the magnesium sulfate heptahydrate is at a concentration of 0.45-0.53g/L, the potassium dihydrogen phosphate is at a concentration of 0.10-0.14g/L, the trace elements are at a concentration of 5.11-5.21mg/L, and the iron salt is at a concentration of 12.54-13.54 mg/L.
3. A tobacco hydroponics nutrient solution according to claim 1, wherein the concentration of 3-indoleacetic acid is 1.5-2.0 mg/L.
4. A tobacco hydroponics nutrient solution according to claim 3, wherein the concentration of 3-indoleacetic acid is 1.75 mg/L.
5. A tobacco hydroponics nutrient solution according to claim 2, wherein the potassium nitrate is at a concentration of 0.51g/L, the calcium nitrate tetrahydrate at a concentration of 1.18g/L, the magnesium sulfate heptahydrate at a concentration of 0.49g/L, the potassium dihydrogen phosphate at a concentration of 0.12g/L, the trace elements at a concentration of 5.16mg/L, and the iron salt at a concentration of 13.04 mg/L.
6. A tobacco hydroponics nutrient solution according to claim 1, characterized in thatThen, the iron salt is prepared from the following components: ferrous sulfate heptahydrate and EDTA-Na2。
7. A tobacco hydroponics nutrient solution according to claim 6, wherein the ferrous sulfate heptahydrate is at a concentration of 5.51-5.61mg/L, the EDTA-Na2The concentration of (A) is 7.43-7.53 mg/L.
8. A tobacco hydroponics nutrient solution according to claim 1, wherein the boric acid is at a concentration of 2.73-2.83mg/L, the manganese chloride tetrahydrate is at a concentration of 1.95-2.01mg/L, the zinc sulfate heptahydrate is at a concentration of 0.20-0.26mg/L, the copper sulfate pentahydrate is at a concentration of 0.07-0.08mg/L, and the sodium molybdate dihydrate is at a concentration of 0.096-0.098 mg/L.
9. A method of preparing a tobacco hydroponic nutrient solution according to any one of claims 1 to 8, comprising the steps of:
step 1: dissolving potassium nitrate, calcium nitrate tetrahydrate, magnesium sulfate heptahydrate and potassium dihydrogen phosphate by using a solvent, and mixing to obtain a first concentrated solution;
step 2: dissolving boric acid, manganese chloride tetrahydrate, zinc sulfate heptahydrate, copper sulfate pentahydrate and sodium molybdate dihydrate by using a solvent, and then mixing to obtain a second concentrated solution;
and step 3: dissolving iron salt with a solvent to obtain a third concentrated solution;
and 4, step 4: dissolving 3-indoleacetic acid in absolute ethyl alcohol to form a fourth concentrated solution;
and 5: mixing the first, second, third and fourth concentrates with water in a volume ratio of 1: 1: 1: 10: 500, and mixing to obtain the tobacco water culture nutrient solution.
10. Use of a tobacco hydroponics nutrient solution according to any one of claims 1 to 8, or made by the method of manufacture of claim 9, in growing tobacco, comprising the steps of:
and immersing the root system of the tobacco seedling in the tobacco hydroponics nutrient solution for culturing, intermittently introducing oxygen for 2 hours every day, and changing the tobacco hydroponics nutrient solution every 4 days to obtain the tobacco.
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| CN201811603102.7A CN111362743A (en) | 2018-12-26 | 2018-12-26 | Tobacco water culture nutrient solution and preparation method thereof |
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| CN201811603102.7A CN111362743A (en) | 2018-12-26 | 2018-12-26 | Tobacco water culture nutrient solution and preparation method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114271113A (en) * | 2021-12-24 | 2022-04-05 | 广东省农业科学院环境园艺研究所 | Rooting method of pachira macrocarpa |
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| CN1294106A (en) * | 1999-10-29 | 2001-05-09 | 刘敏 | Nutritive liquid for plant |
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| CA2304446A1 (en) * | 1997-11-25 | 1999-06-03 | Hampshire Chemical Corp. | Plant micronutrient chelating surfactant compounds |
| CN1294106A (en) * | 1999-10-29 | 2001-05-09 | 刘敏 | Nutritive liquid for plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114271113A (en) * | 2021-12-24 | 2022-04-05 | 广东省农业科学院环境园艺研究所 | Rooting method of pachira macrocarpa |
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