CN111233557A - Water-soluble fertilizer and application method thereof - Google Patents
Water-soluble fertilizer and application method thereof Download PDFInfo
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- CN111233557A CN111233557A CN202010267011.1A CN202010267011A CN111233557A CN 111233557 A CN111233557 A CN 111233557A CN 202010267011 A CN202010267011 A CN 202010267011A CN 111233557 A CN111233557 A CN 111233557A
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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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- 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
- 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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- Soil Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Environmental Sciences (AREA)
- Fertilizers (AREA)
Abstract
The invention relates to a water-soluble fertilizer and a using method thereof, wherein the water-soluble fertilizer comprises one or more of water-soluble nitrogen, water-soluble phosphorus and water-soluble potassium, and is characterized by further comprising a chelating agent, and the amount of the chelating agent is larger than that required by the water-soluble fertilizer for chelating divalent cations. In the using method, water is dripped to dissolve the water-soluble fertilizer.
Description
Technical Field
The invention relates to a water-soluble fertilizer and a use method thereof.
Background
Along with the development of society, rural labour's reduction to and the country advocate water conservation and fertilizer saving, drip irrigation facilities have been laid in many places, dissolve water-soluble fertilizer in the aquatic and adopt the mode of driping irrigation to drip into the field, both water conservation and fertilizer saving use manpower sparingly receive masses of growers' liking, simultaneously, peasant household has also formed the custom that must add fertile soon.
In the prior water soluble fertilizer, in order to balance fertilization and prevent nutrient deficiency, different amounts of medium and trace elements are added at the beginning of the design formula, and in order to prevent the medium and trace elements and a macroelement H2PO4-、HPO42-The reaction between the components occurs to form insoluble sediment and improve the utilization rate of each element, the added medium trace elements are mostly in a chelated state, the EDTA is mainly used for chelating, the product is dissolved in water to be clear and transparent, however, in the using process, the condition of blocking a spray nozzle and a pipeline exists, even if the used water is filtered, the condition of blocking the spray nozzle and the pipeline still exists under the condition of no impurities, and the problem is easy to understand.
At present, most of water-soluble fertilizer drip irrigation equipment in China adopts Israel drip irrigation equipment, the water-soluble fertilizer is not greatly different from the Israel in raw materials, the use method of the water-soluble fertilizer is the same as that of Israel, namely, during drip irrigation, the water-soluble fertilizer is diluted and then pumped into a pipeline by a pump for drip irrigation, and after the water-soluble fertilizer is completely dripped, drip irrigation facilities are shut down. However, the inventor finds that the plant using the drip irrigation seed has the situation that the root system floats up the spiral root, and the place without adopting the drip irrigation is few or has no spiral root, even if the equipment, the water-soluble fertilizer and the application method of the water-soluble fertilizer all adopt the Israel method, the phenomena of the floating up of the root system and the spiral root still exist, the yield of the plant generating the spiral root is also influenced, the loss is caused to the grower, and the market urgently needs to solve the problem.
The inventor researches the water soluble fertilizer applied to drip irrigation to solve the problems that the service life of a pipeline is influenced by the fact that a spray head and the pipeline are blocked, and the yield of crops is influenced by the fact that more spiral roots of the crops are planted by the water soluble fertilizer.
The water-soluble fertilizer is suitable for being planted in China, and a corresponding using method is needed in the market at present, the water-soluble fertilizer can solve the problems that when the water-soluble fertilizer is applied to drip irrigation, a sprayer and a pipeline are blocked, the service life of the pipeline is influenced, and the yield of crops is influenced due to the fact that more spiral roots of the crops planted by the water-soluble fertilizer are needed.
Disclosure of Invention
The invention aims to solve the technical problems that when the water-soluble fertilizer is applied to drip irrigation, a spray head and a pipeline are blocked, the service life of the pipeline is influenced, and the yield of crops is influenced due to more spiral roots of the crops planted by using the water-soluble fertilizer.
In order to solve the technical problems, the invention adopts the following technical scheme:
a water-soluble fertilizer comprises one or more of water-soluble nitrogen, water-soluble phosphorus and water-soluble potassium and also comprises a chelating agent, and the amount of the chelating agent is larger than that required by the water-soluble fertilizer for chelating divalent cations.
The water-soluble nitrogen is one or more of urea, potassium nitrate, ammonium dihydrogen phosphate, ammonium calcium nitrate, ammonium sulfate and urea phosphate; the water-soluble phosphorus is one or more of potassium dihydrogen phosphate, ammonium dihydrogen phosphate, potassium phosphite, potassium polyphosphate and ammonium polyphosphate; the water-soluble potassium is one or more of potassium nitrate, potassium chloride, potassium sulfate, potassium polyphosphate, potassium dihydrogen phosphate and potassium phosphite; the chelating agent is one or more of disodium ethylene diamine tetraacetate, sodium ethylenediamine-dipheny-phenyl acetate, polymeric amino acid and salts thereof.
After being diluted by 250 times of water, the pH value is 5.0-6.5.
A method for using a water-soluble fertilizer comprises the steps of diluting the water-soluble fertilizer and applying the fertilizer in a drip irrigation mode.
The dilution is carried out by adopting water, and the dilution multiple is 500-1500 times.
The drip irrigation comprises water dripping and water soluble fertilizer after the water dripping is diluted.
The water drops comprise water drops before the diluted water-soluble fertilizer is dropped and water drops after the diluted water-soluble fertilizer is dropped, and the water is one or more of underground water, tap water, purified water and reservoir water.
The water dropping amount is 2-10 square/mu, and the water soluble fertilizer amount after dropping and diluting is 2-6 square/mu.
The water dropping amount is 2-5 square/mu/time, and the water soluble fertilizer amount after dropping and diluting is 2-6 square/mu.
The invention has the following beneficial technical effects:
1. add the chelating agent in this application, and the amount of chelating agent is greater than the required amount of chelate divalent cation in the water-soluble fertilizer, can improve the utilization ratio of phosphorus, prevents that water-soluble fertilizer from being applied to and driping irrigation, blocks up shower nozzle and pipeline, also can prevent simultaneously that the metal ion in the soil is fixed to phosphorus, improves the mobility of phosphorus.
2. The pH value is slightly acidic, so that the utilization rate of phosphorus is improved, and precipitates are not easy to generate; meanwhile, the chelating agent is acidic, has better effect under acidic condition, and is easy to lose efficacy under alkaline condition.
3. This application drips and divide into twice, and the purpose of dripping before the fertilizer is dripped makes soil moist, makes things convenient for the infiltration of water-soluble fertile, drips the purpose after the fertilizer and is carried out the drip washing to the fertilizer, makes the fertilizer further sink, prevents the production of spiral root.
Drawings
FIG. 1 is a comparative 3 ground root map
FIG. 2 is a graph of the root system of comparative example 3.
Detailed Description
The present invention is further illustrated by the following specific examples.
Example 1
A water-soluble fertilizer comprises water-soluble nitrogen, water-soluble phosphorus, water-soluble potassium and a chelating agent according to a mass ratio of 40:30:27: 3.
The water soluble nitrogen is urea; the water-soluble phosphorus is potassium dihydrogen phosphate; the water soluble potassium is potassium sulfate; the chelating agent is disodium ethylenediaminetetraacetate.
After dilution with 250 times water, the pH was 6.2.
A method for using a water-soluble fertilizer comprises the steps of diluting the water-soluble fertilizer and applying the fertilizer in a drip irrigation mode.
The dilution is carried out by adopting water, and the dilution multiple is 800 times.
The drip irrigation comprises water dripping and water soluble fertilizer after the water dripping is diluted.
The water drops include the water drops before the water-soluble fertilizer after the drop dilution and the water drops after the water-soluble fertilizer after the drop dilution, and the water is stored for the reservoir.
The water dropping amount is 3 square/mu/time, and the water soluble fertilizer amount after dropping and dilution is 4 square/mu.
Example 2
A water-soluble fertilizer comprises water-soluble nitrogen, water-soluble phosphorus, water-soluble potassium, a chelating agent and ethylene diamine tetraacetic acid disodium calcium according to a mass ratio of 37:30:27:3: 3.
The water soluble nitrogen is urea; the water-soluble phosphorus is potassium dihydrogen phosphate; the water soluble potassium is potassium sulfate; the chelating agent is disodium ethylenediaminetetraacetate.
After dilution with 250 times water, the pH was 6.2.
A method for using a water-soluble fertilizer comprises the steps of diluting the water-soluble fertilizer and applying the fertilizer in a drip irrigation mode.
The dilution is performed by adopting water, and the dilution multiple is 1000 times.
The drip irrigation comprises water dripping and water soluble fertilizer after the water dripping is diluted.
The water dripping comprises water dripping before the diluted water-soluble fertilizer and water dripping after the diluted water-soluble fertilizer is dripped, and the water is underground water.
The water dropping amount is 3 square/mu/time, and the water soluble fertilizer amount after dropping and diluting is 5 square/mu.
Example 3
A water-soluble fertilizer comprises water-soluble phosphorus, water-soluble potassium, disodium calcium ethylene diamine tetraacetate, disodium zinc ethylene diamine tetraacetate and sodium ethylenediamine-di-o-phenyl acetate according to a mass ratio of 24:68:4:2: 2.
The water-soluble phosphorus is a composition of potassium dihydrogen phosphate and ammonium dihydrogen phosphate according to the mass ratio of 1: 1; the water-soluble potassium is potassium nitrate.
After dilution with 250 times water, the pH was 5.2.
A method for using a water-soluble fertilizer comprises the steps of diluting the water-soluble fertilizer and applying the fertilizer in a drip irrigation mode.
The dilution is performed by adopting water, and the dilution multiple is 1000 times.
The drip irrigation comprises water dripping and water-soluble fertilizer after the water dripping is diluted, and the water is underground water.
The water dropping amount is 4 square/mu, and the water soluble fertilizer amount after the water dropping and dilution is 4 square/mu.
Example 4
A water-soluble fertilizer comprises water-soluble phosphorus and a chelating agent according to a mass ratio of 95: 5.
The water-soluble phosphorus is a composition of potassium dihydrogen phosphate and ammonium dihydrogen phosphate according to a mass ratio of 5:1
A method for using a water-soluble fertilizer comprises the steps of diluting the water-soluble fertilizer and applying the fertilizer in a drip irrigation mode.
The dilution is carried out by adopting water, and the dilution multiple is 1200 times.
The drip irrigation comprises water dripping and water soluble fertilizer after the water dripping is diluted.
The water dripping comprises water dripping before the diluted water-soluble fertilizer and water dripping after the diluted water-soluble fertilizer is dripped, and the water is tap water.
The water dropping amount is 2 square/mu/time, and the water soluble fertilizer amount after dropping and diluting is 6 square/mu.
Example 5
A water-soluble fertilizer comprises water-soluble nitrogen, water-soluble phosphorus, water-soluble potassium, a chelating agent, disodium calcium ethylene diamine tetraacetate and disodium ferrous ethylenediamine tetraacetate according to a mass ratio of 53:18:21:2:4: 2.
The water-soluble nitrogen is a composition of urea and ammonium sulfate according to a mass ratio of 2: 3; the water-soluble phosphorus is potassium dihydrogen phosphate; the water-soluble potassium is a composition of potassium sulfate and potassium nitrate according to a mass ratio of 3: 1; the chelating agent is a composition of disodium ethylene diamine tetraacetate and sodium ethylenediamine-diphenylphthalate in a mass ratio of 3: 1.
After dilution with 250 times of water, the pH was 6.0.
A method for using a water-soluble fertilizer comprises the steps of diluting the water-soluble fertilizer and applying the fertilizer in a drip irrigation mode.
The dilution is carried out by adopting water, and the dilution multiple is 800 times.
The drip irrigation comprises water dripping and water soluble fertilizer after the water dripping is diluted.
The water dripping comprises dripping before the diluted water-soluble fertilizer and dripping after the diluted water-soluble fertilizer is dripped, and the water is mineral water.
The water dropping amount is 3 square/mu/time, and the water soluble fertilizer amount after dropping and diluting is 5 square/mu.
The beneficial effects of the present invention are further illustrated below in conjunction with experimental data:
experiment one
1. Experimental materials
1, materials and methods:
1.1 test site: cigarette platform adds fresh agricultural science and technology ltd laboratory.
1.2 test materials: the water soluble fertilizer prepared in example 2, comparative 1 (which is identical to the water soluble fertilizer of example 2 except that the chelating agent is replaced by calcium disodium ethylenediaminetetraacetate) and comparative 2 (which is identical to the water soluble fertilizer of example 2 except that the chelating agent and calcium disodium ethylenediaminetetraacetate are replaced by urea).
1.3, detection: total phosphorus and water soluble phosphorus.
1.4 detection method: detecting total phosphorus according to NY1107-2010, wherein the detection method of the water-soluble phosphorus comprises the following steps: weighing about 0.9g, placing in a 250ml beaker, adding 200ml of water, stirring until the water-soluble fertilizer is completely dissolved, covering a surface dish, standing for 24 hours, transferring to a 250ml volumetric flask, fixing the volume, and directly detecting phosphorus; the water used was laboratory tap water with a hardness of 19.
The experiment was conducted in a consistent manner except for the different treatments used in the experiment.
2 results and analysis
2.1 Experimental phenomena: the bottom of the water-soluble fertilizer prepared in the application example 2 has no obvious sediment, while the bottom of the water-soluble fertilizer prepared in the application example 1 (except that the chelating agent is replaced by the disodium calcium ethylene diamine tetraacetate, the other parts are all consistent with the water-soluble fertilizer prepared in the application example 2) and the bottom of the application example 2 (except that the chelating agent and the disodium calcium ethylene diamine tetraacetate are replaced by the urea, the other parts are all consistent with the water-soluble fertilizer prepared in the application example 2) have fine sediment, and small particles like dust can be seen by shaking.
2.2 Experimental results: after 24h standing, the total and water soluble phosphorus content of the water soluble fertilizer prepared in example 2, comparative 1 (which is identical to the water soluble fertilizer of example 2 except that the chelating agent is replaced by calcium disodium ethylenediaminetetraacetate) and comparative 2 (which is identical to the water soluble fertilizer of example 2 except that the chelating agent and calcium disodium ethylenediaminetetraacetate are replaced by urea), are shown in table 1
TABLE 1
| Total phosphorus (%) | Water-soluble phosphorus (%) | |
| Example 2 | 15.61 | 15.60 |
| Comparative example 1 | 15.63 | 14.31 |
| Comparative example 2 | 15.64 | 14.32 |
Considering that the experimental error of the same person in the same laboratory is within 0.2, namely no loss of water-soluble phosphorus is generated in example 2, and more than 1 part of water-soluble phosphorus is lost in comparison 1 and comparison 2 (except that the chelating agent and the disodium calcium ethylenediaminetetraacetate are replaced by urea, the water-soluble phosphorus is consistent with the water-soluble fertilizer in example 2), namely, the content of the water-soluble phosphorus is reduced and precipitates are generated in comparison 1 (except that the chelating agent and the disodium calcium ethylenediaminetetraacetate are replaced by the disodium calcium ethylenediaminetetraacetate, the water-soluble fertilizer is consistent with the water-soluble fertilizer in example 2) and comparison 2 (except that the chelating agent and the disodium calcium ethylenediaminetetraacetate are replaced by urea, the water-soluble fertilizer is consistent with the water-soluble fertilizer in example 2), so that the phosphorus utilization rate is low, and the precipitates in use are likely to remain in the pipeline and not be discharged in time, likely to silt up the pipeline, cause blockage to the pipeline, and the large blocks generated by silting can, but not in the present application.
Comparison of two fertilizer effects in experiment
1. Experimental materials
1, materials and methods:
1.1 test site: weifang city Qingzhou city in the Weifang city is the cause of the governance.
1.2 test materials: example 2, comparative 3 (using the water-soluble fertilizer prepared in example 2 and diluted with the water-soluble fertilizer according to example 2, with no water dripping before and after the water-soluble fertilizer was dripped, direct drip irrigation) and comparative 4 (using the water-soluble fertilizer prepared in example 2 and diluted with the water-soluble fertilizer according to example 2, with 0.5 square/mu of water dripping before and after the water-soluble fertilizer was dripped, pipe cleaning).
The experiment is consistent in other management except for different experimental treatments.
1.3 experimental design: the crop to be treated is greenhouse watermelon, every 200 square meters is a treatment unit, an isolation zone of 20 square meters is arranged between every two treatments, the length of the greenhouse is 56 meters, the width of the greenhouse is 12 meters, and the greenhouse is sowed in the width direction.
The experiment is consistent in other management except that the fertilizer is adopted for different treatments.
1.4 Experimental detection: after harvesting, digging out root system, observing root system condition, and counting the yield of each cell, see Table 2
TABLE 2
| Yield (kg) | Root system condition and nozzle clogging | |
| Example 2 | 1237.6 | The root system is normal, no spiral root exists, and the problem of blockage of unreacted nozzles of experimental users |
| Comparison 3 | 1157.3 | More spiral roots exist, and the problem that the experimental user reacts to block the spray head |
| Comparative example 4 | 1162.5 | More spiral roots exist, and the problem of blockage of unreacted nozzles of experimental users |
As can be seen from table 2, this application can be solved and use water-soluble fertilizer to drip irrigation, easily block up shower nozzle and pipeline, influence pipeline life to and the crop spiral that uses water-soluble fertilizer to plant uses water-soluble fertilizer to drip irrigation, produces the phenomenon of spiral root, can improve fertilizer utilization ratio, makes the crop increase production.
Claims (9)
1. The water-soluble fertilizer comprises one or more of water-soluble nitrogen, water-soluble phosphorus and water-soluble potassium, and is characterized by further comprising a chelating agent, wherein the amount of the chelating agent is larger than that required by divalent cations in the water-soluble fertilizer.
2. The water-soluble fertilizer as claimed in claim 1, wherein the water-soluble nitrogen is one or more of urea, potassium nitrate, ammonium dihydrogen phosphate, ammonium calcium nitrate, ammonium sulfate and urea phosphate; the water-soluble phosphorus is one or more of potassium dihydrogen phosphate, ammonium dihydrogen phosphate, potassium phosphite, potassium polyphosphate and ammonium polyphosphate; the water-soluble potassium is one or more of potassium nitrate, potassium chloride, potassium sulfate, potassium polyphosphate, potassium dihydrogen phosphate and potassium phosphite; the chelating agent is one or more of disodium ethylene diamine tetraacetate, sodium ethylenediamine-dipheny-phenyl acetate, polymeric amino acid and salts thereof.
3. The water-soluble fertilizer as claimed in claim 1 or 2, wherein the pH value is 5.0-6.5 after the fertilizer is diluted by 250 times of water.
4. The application method of the water-soluble fertilizer is characterized in that the water-soluble fertilizer is diluted and applied by adopting a drip irrigation mode.
5. The use method of the water-soluble fertilizer as claimed in claim 4, characterized in that: the dilution is carried out by adopting water, and the dilution multiple is 500-1500 times.
6. The use of a water-soluble fertilizer according to claim 4 or 5, characterized in that: the drip irrigation comprises water dripping and water-soluble fertilizer after the water dripping is diluted, wherein the water is one or more of underground water, tap water, purified water and reservoir water.
7. The method for preparing the water-soluble fertilizer as claimed in claim 6, wherein the method comprises the following steps: the water dripping comprises water dripping before the diluted water-soluble fertilizer and water dripping after the diluted water-soluble fertilizer is dripped.
8. The water-soluble fertilizer and the use method thereof as claimed in claim 6, characterized in that: the water dropping amount is 2-10 square/mu, and the water soluble fertilizer amount after dropping and diluting is 2-6 square/mu.
9. The water-soluble fertilizer and the use method thereof as claimed in claim 7, wherein: the water dropping amount is 2-5 square/mu/time, and the water soluble fertilizer amount after dropping and diluting is 2-6 square/mu.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1453251A (en) * | 2002-04-25 | 2003-11-05 | 中国科学院过程工程研究所 | Acid liquid fertilizer for drip irrigation and its prepn |
| CN104973987A (en) * | 2015-08-11 | 2015-10-14 | 刘彬 | Production method of humic acid-containing water-soluble fertilizer capable of preventing greenhouse moss |
| CN107285919A (en) * | 2017-08-10 | 2017-10-24 | 糖化实业（上海）有限公司 | A kind of multi-functional water-soluble fertilizer and application |
| CN107306780A (en) * | 2017-07-21 | 2017-11-03 | 闽南师范大学 | A kind of cultivation matrix of vegetables and preparation method thereof and cultural method |
| CN107986876A (en) * | 2017-12-20 | 2018-05-04 | 崔凯 | A kind of organic granular Water soluble fertilizer and preparation method thereof |
| CN108586109A (en) * | 2018-08-01 | 2018-09-28 | 山东沃尔美肥业有限公司 | A kind of Chinese yam Water-soluble fertilizer special and its preparation and application method |
-
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- 2020-04-08 CN CN202010267011.1A patent/CN111233557B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1453251A (en) * | 2002-04-25 | 2003-11-05 | 中国科学院过程工程研究所 | Acid liquid fertilizer for drip irrigation and its prepn |
| CN104973987A (en) * | 2015-08-11 | 2015-10-14 | 刘彬 | Production method of humic acid-containing water-soluble fertilizer capable of preventing greenhouse moss |
| CN107306780A (en) * | 2017-07-21 | 2017-11-03 | 闽南师范大学 | A kind of cultivation matrix of vegetables and preparation method thereof and cultural method |
| CN107285919A (en) * | 2017-08-10 | 2017-10-24 | 糖化实业（上海）有限公司 | A kind of multi-functional water-soluble fertilizer and application |
| CN107986876A (en) * | 2017-12-20 | 2018-05-04 | 崔凯 | A kind of organic granular Water soluble fertilizer and preparation method thereof |
| CN108586109A (en) * | 2018-08-01 | 2018-09-28 | 山东沃尔美肥业有限公司 | A kind of Chinese yam Water-soluble fertilizer special and its preparation and application method |
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