CN103483044A - Calcium-rich organic liquid fertilizer and preparation method thereof - Google Patents
Calcium-rich organic liquid fertilizer and preparation method thereof Download PDFInfo
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- CN103483044A CN103483044A CN201310428181.3A CN201310428181A CN103483044A CN 103483044 A CN103483044 A CN 103483044A CN 201310428181 A CN201310428181 A CN 201310428181A CN 103483044 A CN103483044 A CN 103483044A
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Abstract
The invention provides a calcium-rich organic liquid fertilizer which comprises the following compositions: 20-40% of a chelated calcium solution, 10-30% of a chelated iron solution, 10-20% of a urea solution, and 20-30% of water. The invention further provides a preparation method for the calcium-rich organic liquid fertilizer. According to the calcium-rich organic liquid fertilizer, provided by the invention, the calcium-rich organic liquid fertilizer added with iron and nitrogen is prepared by adopting the preparation method based on certain improvement and aiming at the problems and defects existing in the prior art, the paddy rice yield is greatly improved, the absorption and utilization of calcium and other elements are facilitated, the content of organic calcium in rice is increased, the rice quality is improved, and besides, the calcium-rich organic liquid fertilizer has the advantages of safety, non-pollution, relatively simple preparation method, low cost and the like.
Description
Technical field
The invention belongs to organic liquid calcareous fertilisers field, particularly produce rich calcium organic fertilizer of paddy rice and preparation method thereof.
Background technology
Calcium has the good reputation of human body " bioelement ", is the abundantest inorganic elements of body burden, and total amount surpasses 1kg.Calcium is most important to human body, not only is related to bone health, and may be relevant with hypertension, premenstrual tension syndrome etc.Calcium ion has the biopotential that maintains the cytolemma both sides, maintains normal Nerve conduction, maintains normal muscle and stretches and diastolic function and nerve-muscle conduction function, also has some functions of hormones mechanism all to show by calcium ion.
The 8-12 month in 2002, by the Ministry of Health, the Department of Science and Technology and State Statistics Bureau, to be taken the lead, investigation amounts to 270,000 people, and urban and urual areas of whole country's calcium intake is only 391mg per capita, is equivalent to 41% of recommended intake.Particularly, along with the average expected life-span extends, the elderly is more and more, and osteoporotic harm will be more and more outstanding.Improving the content of calcium in rice by applying calcareous fertilisers, to improve calcium intake per capita, is a kind of effective way of prevention senile osteoporosis.
At present, the calcareous fertilisers of domestic production mainly contain two kinds of inorganic mixing calcareous fertilisers and organic liquid calcareous fertilisers, and inorganic mixing calcareous fertilisers are by the method for calcareous fertilisers bottom application, reach the purpose of Crop calcium, easily by soil fixing, directly affect the content of calcium in the absorption of calcium and product due to trace element fertilizers such as calcium; Another kind is by the method for foliage-spray organic liquid calcareous fertilisers, although root outer spraying is most economical effective fertilizing method, the calcium agent sprayed is simple, it is single to fill a prescription, and often is unfavorable for promoting the absorption of calcium, and the calcium utilization, the security that spray are lower.
Summary of the invention
Goal of the invention: first purpose of the present invention is to provide a kind of rich calcium organic fertilizer.Second purpose of the present invention is to provide the preparation method of this richness calcium organic fertilizer.
Technical scheme: the invention provides a kind of rich calcium organic fertilizer, formed by following component by weight percentage: chelating calcium solution 20%～40%, chelated iron solution 10%～30%, urea soln 10%～20%, water 20%～30%.
Described chelating calcium solution concentration range is 5 * 10
-4mol/L～17 * 10
-4mol/L, described chelated iron solution concentration range is 3 * 10
-4mol/L～10 * 10
-4mol/L, described urea concentration scope is 2 * 10
-3mol/L～6 * 10
-3mol/L.
Preferably, described chelating calcium solution concentration is 9 * 10
-4mol/L, described chelated iron solution concentration is 6 * 10
-4mol/L, described urea concentration is 4 * 10
-3mol/L.
Preferably, described chelating calcium solution concentration is 13 * 10
-4mol/L, described chelated iron solution concentration is 8 * 10
-4mol/L, described urea concentration is 5 * 10
-3mol/L.
The preparation method of above-mentioned rich calcium organic fertilizer comprises the following steps:
(1) prepare the chelating calcium solution: from the Double-low Rape Seed grouts, extract amino acid, the amino acid extracted is mixed by a mole ratio range 2:1.5～3:1.5 with calcium carbonate, regulate pH value 6.5～8.5, at normal pressure, at 60～80 ℃ of temperature, carry out chelatropic reaction 1～5h;
(2) prepare chelated iron solution: from the Double-low Rape Seed grouts, extract amino acid, the amino acid extracted is mixed by a mole ratio range 4:1.5～6:1.5 with ferrous sulfate, regulate pH value 4.5～6.5, at normal pressure, at 35～60 ℃ of temperature, carry out chelatropic reaction 1～4h;
(3) get urea and water and prepare at normal temperatures and pressures 2 * 10
-3mol/L～6 * 10
-3the mol/L urea soln;
(4) the described chelating calcium solution in step 1～3, chelated iron solution, urea soln are mixed with water by above-mentioned proportioning, more than being uniformly mixed 1h under normal temperature and pressure.
Extracting amino acid in described step (1) and step (2) in the Double-low Rape Seed grouts comprises the steps:
A) take Double-low Rape Seed grouts 10g, serine protease 0.15g, add distilled water, be made into the 200mL mixed solution;
B) hydro-oxidation sodium adjusting pH is 7.5, and in water bath, effect 15h takes out;
C) be heated to more than 100 ℃, deactivation suction filtration 8min, obtain Double-low Rape Seed grouts hydrolyzed solution and obtain amino acid.
In described step (1), mole proportioning of amino acid and calcium carbonate is 2.5:1.5, regulates pH value 7.5, at normal pressure, carries out chelatropic reaction 3.5h under temperature 70 C and makes the chelating calcium solution.
In described step (2), mole proportioning of amino acid and ferrous sulfate is 5:1.5, and pH value 5.5, at normal pressure, carry out chelatropic reaction 2.5h and make chelated iron solution under temperature 45 C.
Beneficial effect:
1) by the using of rich calcium organic fertilizer of the present invention, improved the content of organic calcium in the rice, can reach 135～185mg/kg, and the calcium content of general rice is only at 70～100mg/kg, thereby improved the quality of rice;
2) by the using of rich calcium organic fertilizer of the present invention, can increase substantially rice yield, thousand seed weight increases by 1～1.5g, and paddy rice is on average increased production 50～75kg/ mu.With the paddy rice that does not spray rich calcium organic fertilizer, compare, the paddy rice anti contravariance that sprays rich calcium organic fertilizer in conventional cultivation Cultivate administration process is strong, leaf color depth, blade are thick, straight and upright, particularly last three functional leaf chlorophyll contents are high, photosynthesis is strong, the blue or green seed Huang of stalk when paddy rice is ripe, output increases substantially.
3) in rich calcium organic fertilizer of the present invention, because having added the interaction of iron nitrogen, play effect complementary between element, stack, promoted absorbing of calcium and other elements;
4) this rich calcium organic fertilizer have safe, pollution-free, the characteristics such as the preparation method is relatively simple, cost is low.
5) preparation method of rich calcium organic fertilizer provided by the invention, technique is simple, easy to operate, is suitable for suitability for industrialized production.
Embodiment
According to following embodiment, the present invention may be better understood.Yet, those skilled in the art will readily understand, the described concrete material proportion of embodiment, processing condition and result thereof be only for the present invention is described, and should also can not limit the present invention described in detail in claims.
Embodiment 1
A kind of rich calcium organic fertilizer is comprised of following component by weight percentage: chelating calcium solution 20%, chelated iron solution 30%, urea soln 20%, water 30%.Described chelating calcium solution concentration is 5 * 10
-4mol/L, described chelated iron solution concentration is 3 * 10
-4mol/L, described urea concentration is 2 * 10
-3mol/L.
A kind of preparation method of rich calcium organic fertilizer comprises the following steps:
(1) prepare the chelating calcium solution: extract amino acid from the Double-low Rape Seed grouts, the amino acid extracted is mixed by a mole ratio range 3:1.5 with calcium carbonate, regulate pH value 6.5, at normal pressure, carry out chelatropic reaction 1h under temperature 60 C;
(2) prepare chelated iron solution: extract amino acid from the Double-low Rape Seed grouts, the amino acid extracted is mixed by a mole ratio range 4:1.5 with ferrous sulfate, adjusting pH value 4.5, at normal pressure, carry out chelatropic reaction 1h at 35 ℃ of temperature;
(3) get urea and water and prepare at normal temperatures and pressures 2 * 10
-3the mol/L urea soln;
(4) the described chelating calcium solution in step 1～3, chelated iron solution, urea soln are mixed with water by described proportioning, more than being uniformly mixed 1h under normal temperature and pressure.
Extracting amino acid in described step (1) and step (2) in the Double-low Rape Seed grouts comprises the steps:
A), take Double-low Rape Seed grouts 10g, serine protease 0.15g, add distilled water, be made into the 200mL mixed solution;
B), to regulate pH be 7.5 to hydro-oxidation sodium, in water bath, effect 15h takes out;
C), be heated to more than 100 ℃, deactivation suction filtration 8min, obtain Double-low Rape Seed grouts hydrolyzed solution and obtain amino acid.
Field test place: experimental plot, No. 1, Jurong City.
For trying rice varieties: town rice No. 10.
Plan design: conventional cultivation with spray two kinds of processing modes of above-mentioned rich calcium organic fertilizer.
In the present embodiment, the conventional cultivation method of paddy rice is seed selection, seedling, cultivated whole field, rice transplanting, field management, harvesting.
In the present embodiment, paddy rice sprays the production method of rich calcium organic fertilizer:
(1) use for the first time: in 40～60% heading periods of paddy rice, get the rich calcium organic fertilizer of above-mentioned formula 500mL, be dissolved in 50kg water, after fully mixing, rice leaf is sprayed once to rich calcium organic fertilizer.
(2) use for the second time: get again the rich calcium organic fertilizer of above-mentioned formula 500mL, be dissolved in 50kg water, after fully mixing, at the rice milking stage initial stage rich calcium organic fertilizer of foliage-spray for the second time.
Test-results:
| Process | Output (kg/ mu) | Calcium contents (mg/kg) |
| Do not spray (general planting) | 545 | 72 |
| Spray the rich calcium solution of the present invention | 595 | 138 |
Embodiment 2
A kind of rich calcium organic fertilizer is comprised of following component by weight percentage: chelating calcium solution 30%, chelated iron solution 30%, urea soln 10%, water 30%.Described chelating calcium solution concentration is 9 * 10
-4mol/L, described chelated iron solution concentration is 6 * 10
-4mol/L, described urea concentration is 4 * 10
-3mol/L.
A kind of preparation method of rich calcium organic fertilizer comprises the following steps:
(1) prepare the chelating calcium solution: extract amino acid from the Double-low Rape Seed grouts, the amino acid extracted is mixed by a mole ratio range 2:1.5 with calcium carbonate, adjusting pH value 8.5, at normal pressure, carry out chelatropic reaction 5h at 80 ℃ of temperature;
(2) prepare chelated iron solution: extract amino acid from the Double-low Rape Seed grouts, the amino acid extracted is mixed by a mole ratio range 6:1.5 with ferrous sulfate, regulate pH value 4.5, at normal pressure, carry out chelatropic reaction 4h under temperature 60 C;
(3) get urea and water and prepare at normal temperatures and pressures 4 * 10
-3the mol/L urea soln;
(4) the described chelating calcium solution in step 1～3, chelated iron solution, urea soln are mixed with water by described proportioning, more than being uniformly mixed 1h under normal temperature and pressure.
Extracting amino acid in described step (1) and step (2) in the Double-low Rape Seed grouts comprises the steps:
A), take Double-low Rape Seed grouts 10g, serine protease 0.15g, add distilled water, be made into the 200mL mixed solution;
B), to regulate pH be 7.5 to hydro-oxidation sodium, in water bath, effect 15h takes out;
C), be heated to more than 100 ℃, deactivation suction filtration 8min, obtain Double-low Rape Seed grouts hydrolyzed solution and obtain amino acid.
Field test place: experimental plot, No. 2, Jurong City.
For trying rice varieties: town rice No. 11.
Plan design: conventional cultivation with spray two kinds of processing modes of above-mentioned rich calcium organic fertilizer.
In the present embodiment, the conventional cultivation method of paddy rice is seed selection, seedling, cultivated whole field, rice transplanting, field management, harvesting.
In the present embodiment, paddy rice sprays the production method of rich calcium organic fertilizer:
(1) use for the first time: in 40～60% heading periods of paddy rice, get the rich calcium organic fertilizer of above-mentioned formula 500mL, be dissolved in 50kg water, after fully mixing, rice leaf is sprayed once to rich calcium organic fertilizer.
(2) use for the second time: get again the rich calcium organic fertilizer of above-mentioned formula 500mL, be dissolved in 50kg water, after fully mixing, at the rice milking stage initial stage rich calcium organic fertilizer of foliage-spray for the second time.
Test-results:
| Process | Output (kg/ mu) | Calcium contents (mg/kg) |
| Do not spray (general planting) | 546 | 84 |
| Spray the rich calcium solution of the present invention | 610 | 169 |
Embodiment 3:
A kind of rich calcium organic fertilizer is comprised of following component by weight percentage: chelating calcium solution 40%, chelated iron solution 20%, urea soln 20%, water 20%.Described chelating calcium solution concentration is 13 * 10
-4mol/L, described chelated iron solution concentration is 8 * 10
-4mol/L, described urea concentration is 5 * 10
-3mol/L.
A kind of preparation method of rich calcium organic fertilizer comprises the following steps:
(1) prepare the chelating calcium solution: extract amino acid from the Double-low Rape Seed grouts, the amino acid extracted is mixed by a mole ratio range 2.5:1.5 with calcium carbonate, regulate pH value 7.5, at normal pressure, carry out chelatropic reaction 3.5h under temperature 70 C;
(2) prepare chelated iron solution: extract amino acid from the Double-low Rape Seed grouts, the amino acid extracted is mixed by a mole ratio range 5:1.5 with ferrous sulfate, regulate pH value 5.5, at normal pressure, carry out chelatropic reaction 2.5h under temperature 45 C;
(3) get urea and water and prepare at normal temperatures and pressures 5 * 10
-3the mol/L urea soln;
(4) the described chelating calcium solution in step 1～3, chelated iron solution, urea soln are mixed with water by described proportioning, more than being uniformly mixed 1h under normal temperature and pressure.
Extracting amino acid in described step (1) and step (2) in the Double-low Rape Seed grouts comprises the steps:
A), take Double-low Rape Seed grouts 10g, serine protease 0.15g, add distilled water, be made into the 200mL mixed solution;
B), to regulate pH be 7.5 to hydro-oxidation sodium, in water bath, effect 15h takes out;
C), be heated to more than 100 ℃, deactivation suction filtration 8min, obtain Double-low Rape Seed grouts hydrolyzed solution and obtain amino acid.
Field test place: experimental plot, No. 3, Jurong City.
For trying rice varieties: military fortune round-grained rice 23.
Plan design: conventional cultivation with spray two kinds of processing modes of above-mentioned rich calcium organic fertilizer.
In the present embodiment, the conventional cultivation method of paddy rice is seed selection, seedling, cultivated whole field, rice transplanting, field management, harvesting.
In the present embodiment, paddy rice sprays the production method of rich calcium organic fertilizer:
(1) use for the first time: in 40～60% heading periods of paddy rice, get the rich calcium organic fertilizer of above-mentioned formula 500mL, be dissolved in 50kg water, after fully mixing, rice leaf is sprayed once to rich calcium organic fertilizer.
(2) use for the second time: get again the rich calcium organic fertilizer of above-mentioned formula 500mL, be dissolved in 50kg water, after fully mixing, at the rice milking stage initial stage rich calcium organic fertilizer of foliage-spray for the second time.
Test-results:
| Process | Output (kg/ mu) | Calcium contents (mg/kg) |
| Do not spray (general planting) | 563 | 87 |
| Spray the rich calcium solution of the present invention | 635 | 176 |
Embodiment 4:
A kind of rich calcium organic fertilizer is comprised of following component by weight percentage: chelating calcium solution 30%, chelated iron solution 20%, urea soln 20%, water 30%.Described chelating calcium solution concentration is 17 * 10
-4mol/L, described chelated iron solution concentration is 10 * 10
-4mol/L, described urea concentration is 6 * 10
-3mol/L.
A kind of preparation method of rich calcium organic fertilizer comprises the following steps:
(1) prepare the chelating calcium solution: extract amino acid from the Double-low Rape Seed grouts, the amino acid extracted is mixed by a mole ratio range 3:1.5 with calcium carbonate, adjusting pH value 7, at normal pressure, carry out chelatropic reaction 3h at 75 ℃ of temperature;
(2) prepare chelated iron solution: extract amino acid from the Double-low Rape Seed grouts, the amino acid extracted is mixed by a mole ratio range 4.5:1.5 with ferrous sulfate, regulate pH value 6, at normal pressure, carry out chelatropic reaction 3h under temperature 50 C;
(3) get urea and water and prepare at normal temperatures and pressures 6 * 10
-3the mol/L urea soln;
(4) the described chelating calcium solution in step 1～3, chelated iron solution, urea soln are mixed with water by described proportioning, more than being uniformly mixed 1h under normal temperature and pressure.
Extracting amino acid in described step (1) and step (2) in the Double-low Rape Seed grouts comprises the steps:
A), take Double-low Rape Seed grouts 10g, serine protease 0.15g, add distilled water, be made into the 200mL mixed solution;
B), to regulate pH be 7.5 to hydro-oxidation sodium, in water bath, effect 15h takes out;
C), be heated to more than 100 ℃, deactivation suction filtration 8min, obtain Double-low Rape Seed grouts hydrolyzed solution and obtain amino acid.
Field test place: experimental plot, No. 4, Jurong City.
For trying rice varieties: town rice No. 18.
Plan design: conventional cultivation with spray two processing of rich calcium organic fertilizer.
In the present embodiment, the conventional cultivation method of paddy rice is seed selection, seedling, cultivated whole field, rice transplanting, field management, harvesting.
In the present embodiment, paddy rice sprays the production method of rich calcium organic fertilizer:
(1) use for the first time: in 40～60% heading periods of paddy rice, get the rich calcium organic fertilizer of above-mentioned formula 500mL, be dissolved in 50kg water, after fully mixing, rice leaf is sprayed once to rich calcium organic fertilizer.
(2) use for the second time: get again the rich calcium organic fertilizer of above-mentioned formula 500mL, be dissolved in 50kg water, after fully mixing, at the rice milking stage initial stage rich calcium organic fertilizer of foliage-spray for the second time.
Test-results:
| Process | Output (kg/ mu) | Calcium contents (mg/kg) |
| Do not spray (general planting) | 554 | 85 |
| Spray the rich calcium solution of the present invention | 616 | 158 |
Embodiment 5
A kind of rich calcium organic fertilizer is comprised of following component by weight percentage: chelating calcium solution 40%, chelated iron solution 10%, urea soln 20%, water 30%.Described chelating calcium solution concentration is 11 * 10
-4mol/L, described chelated iron solution concentration is 6.5 * 10
-4mol/L, described urea concentration is 3 * 10
-3mol/L.
A kind of preparation method of rich calcium organic fertilizer comprises the following steps:
(1) prepare the chelating calcium solution: extract amino acid from the Double-low Rape Seed grouts, the amino acid extracted is mixed by a mole ratio range 2:1.5 with calcium carbonate, adjusting pH value 7, at normal pressure, carry out chelatropic reaction 4h at 65 ℃ of temperature;
(2) prepare chelated iron solution: extract amino acid from the Double-low Rape Seed grouts, the amino acid extracted is mixed by a mole ratio range 5.5:1.5 with ferrous sulfate, adjusting pH value 5, at normal pressure, carry out chelatropic reaction 2h at 55 ℃ of temperature;
(3) get urea and water and prepare at normal temperatures and pressures 3 * 10
-3the mol/L urea soln;
(4) the described chelating calcium solution in step 1～3, chelated iron solution, urea soln are mixed with water by described proportioning, more than being uniformly mixed 1h under normal temperature and pressure.
Extracting amino acid in described step (1) and step (2) in the Double-low Rape Seed grouts comprises the steps:
A), take Double-low Rape Seed grouts 10g, serine protease 0.15g, add distilled water, be made into the 200mL mixed solution;
B), to regulate pH be 7.5 to hydro-oxidation sodium, in water bath, effect 15h takes out;
C), be heated to more than 100 ℃, deactivation suction filtration 8min, obtain Double-low Rape Seed grouts hydrolyzed solution and obtain amino acid.
Field test place: experimental plot, No. 5, Jurong City.
For trying rice varieties: town rice No. 18.
Plan design: conventional cultivation with spray two processing of rich calcium organic fertilizer.
In the present embodiment, the conventional cultivation method of paddy rice is seed selection, seedling, cultivated whole field, rice transplanting, field management, harvesting.
In the present embodiment, paddy rice sprays the production method of rich calcium organic fertilizer:
(1) use for the first time: in 40～60% heading periods of paddy rice, get the rich calcium organic fertilizer of above-mentioned formula 500mL, be dissolved in 50kg water, after fully mixing, rice leaf is sprayed once to rich calcium organic fertilizer.
(2) use for the second time: get again the rich calcium organic fertilizer of above-mentioned formula 500mL, be dissolved in 50kg water, after fully mixing, at the rice milking stage initial stage rich calcium organic fertilizer of foliage-spray for the second time.
Test-results:
| Process | Output (kg/ mu) | Calcium contents (mg/kg) |
| Do not spray (general planting) | 561 | 89 |
| Spray the rich calcium solution of the present invention | 636 | 164 |
Claims (8)
1. a rich calcium organic fertilizer, is characterized in that, following component, consists of by weight percentage: chelating calcium solution 20%～40%, chelated iron solution 10%～30%, urea soln 10%～20%, water 20%～30%.
2. rich calcium organic fertilizer according to claim 1, is characterized in that, described chelating calcium solution concentration range is 5 * 10
-4mol/L～17 * 10
-4mol/L, described chelated iron solution concentration range is 3 * 10
-4mol/L～10 * 10
-4mol/L, described urea concentration scope is 2 * 10
-3mol/L～6 * 10
-3mol/L.
3. rich calcium organic fertilizer according to claim 1, is characterized in that, described chelating calcium solution concentration is 9 * 10
-4mol/L, described chelated iron solution concentration is 6 * 10
-4mol/L, described urea concentration is 4 * 10
-3mol/L.
4. rich calcium organic fertilizer according to claim 1, is characterized in that, described chelating calcium solution concentration is 13 * 10
-4mol/L, described chelated iron solution concentration is 8 * 10
-4mol/L, described urea concentration is 5 * 10
-3mol/L.
5. the preparation method of a rich calcium organic fertilizer, is characterized in that, comprises the following steps:
(1) prepare the chelating calcium solution: from the Double-low Rape Seed grouts, extract amino acid, the amino acid extracted is mixed by a mole ratio range 2:1.5～3:1.5 with calcium carbonate, regulate pH value 6.5～8.5, at normal pressure, at 60～80 ℃ of temperature, carry out chelatropic reaction 1～5h;
(2) prepare chelated iron solution: from the Double-low Rape Seed grouts, extract amino acid, the amino acid extracted is mixed by a mole ratio range 4:1.5～6:1.5 with ferrous sulfate, regulate pH value 4.5～6.5, at normal pressure, at 35～60 ℃ of temperature, carry out chelatropic reaction 1～4h;
(3) get urea and water and prepare at normal temperatures and pressures 2 * 10
-3mol/L～6 * 10
-3the mol/L urea soln;
(4) the described chelating calcium solution in step 1～3, chelated iron solution, urea soln are mixed with water by the described proportioning of claim 1～4 any one, more than being uniformly mixed 1h under normal temperature and pressure.
6. method according to claim 5, is characterized in that, extracts amino acid in described step (1) and step (2) in the Double-low Rape Seed grouts and comprise the steps:
A) take Double-low Rape Seed grouts 10g, serine protease 0.15g, add distilled water, be made into the 200mL mixed solution;
B) hydro-oxidation sodium adjusting pH is 7.5, and in water bath, effect 15h takes out;
C) be heated to more than 100 ℃, deactivation suction filtration 8min, obtain Double-low Rape Seed grouts hydrolyzed solution and obtain amino acid.
7. method according to claim 5, is characterized in that, in described step (1), mole proportioning of amino acid and calcium carbonate is 2.5:1.5, regulates pH value 7.5, at normal pressure, carries out chelatropic reaction 3.5h under temperature 70 C and make the chelating calcium solution.
8. method according to claim 5, is characterized in that, in described step (2), mole proportioning of amino acid and ferrous sulfate is 5:1.5, and pH value 5.5, at normal pressure, carry out chelatropic reaction 2.5h and make chelated iron solution under temperature 45 C.
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| CN103708898A (en) * | 2014-01-17 | 2014-04-09 | 云南福发生物科技有限公司 | Method for producing natural amino acid water-soluble fertilizer by utilizing tobacco liquid waste regenerated by paper-making process |
| CN103708898B (en) * | 2014-01-17 | 2015-10-14 | 云南福发生物科技有限公司 | Papermaking-method reconstituted tobaccos waste liquid is utilized to produce the method for natural amino acid Water soluble fertilizer |
| CN106717696A (en) * | 2015-11-20 | 2017-05-31 | 李其珍 | A kind of mating system of promotion lavender blade thickness |
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