GB1318698A - Cultivation of plants - Google Patents
Cultivation of plantsInfo
- Publication number
- GB1318698A GB1318698A GB5545669A GB1318698DA GB1318698A GB 1318698 A GB1318698 A GB 1318698A GB 5545669 A GB5545669 A GB 5545669A GB 1318698D A GB1318698D A GB 1318698DA GB 1318698 A GB1318698 A GB 1318698A
- Authority
- GB
- United Kingdom
- Prior art keywords
- addition
- cultivation medium
- controlled
- nutrient
- nitrogen
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- 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
-
- 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
- C05G5/00—Fertilisers characterised by their form
- C05G5/20—Liquid fertilisers
- C05G5/27—Dispersions, e.g. suspensions or emulsions
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Dispersion Chemistry (AREA)
- Pest Control & Pesticides (AREA)
- Organic Chemistry (AREA)
- Environmental Sciences (AREA)
- Hydroponics (AREA)
Abstract
1318698 Replacing mineral nutrients in a cultivation medium ASTRA-WALLCO AB 19 April 1971 [12 Nov 1969] 55456/69 Addition to 1148986 Heading C1B Mineral nutrients are replaced in a cultivation medium in the form of an aqueous nutrient composition for feeding to growing plants, containing (apart from any oxygen) mainly the nutrient elements nitrogen, phosphorus, potassium, calcium, magnesium and sulphur, formed by dissolving in water a mixture of salts in which the proportions of the nutrient elements correspond substantially to those present in the plant at optimal growth, the proportion of nitrogen being 4-12À5 times that of phosphorus, 1À0-2À5 times that of potassium, 1À5-25 times that of calcium, 2À5-25 times that of magnesium and 3-15 times that of sulphur; the method employed comprises providing a starting solution containing besides the nutrient elements in optimal proportions as defined above, an ion in excess, and a nutrient solution containing the nutrient elements in optimal proportions as defined above, the addition of the starting solution being controlled by a conductivity meter, and the addition of the nutrient solution to the cultivation medium being controlled by a pH meter, the excess ion being one which is not taken up by the plant in an amount sufficient to inhibit its growth, and replacing the nutrient elements taken up for the cultivation medium by the growing plants by the addition of the nutrient solution to the cultivation medium, the addition being controlled by the pH meter only, whereby the conductivity of the cultivation medium is maintained at 20 to 6000 Á ohm<SP>-1</SP> cm.<SP>-1</SP> and its pH is maintained at 3 to 8. When nitrogen is added in the form of nitrate, pH is controlled by the addition of a cation such as sodium, potassium, calcium or magnesium, e.g. as KOH, NaOH, CaO, Ca(OH) 2 , CaCO 3 , MgO, Mg(OH) 2 , MgCO 3 , K 2 CO 3 or Na 2 CO 3 . When nitrogen is added in the form of ammonium, pH is controlled by anion such as sulphate, phosphate or chloride, e.g. as H 2 SO 4 , H 3 PO 4 or HCl.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5545669 | 1969-11-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1318698A true GB1318698A (en) | 1973-05-31 |
Family
ID=10473969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5545669A Expired GB1318698A (en) | 1969-11-12 | 1969-11-12 | Cultivation of plants |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1318698A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2641945A1 (en) * | 1975-09-17 | 1977-03-31 | Ernst Horst Severin Sjoestedt | METHOD OF SOIL-FREE PLANT GROWING |
| FR2392597A1 (en) * | 1977-01-15 | 1978-12-29 | Fisons Ltd | CULTIVATION PROCESS IN A LIQUID NUTRITIONAL ENVIRONMENT |
| EP0358629A1 (en) * | 1988-08-23 | 1990-03-14 | Epenhuysen Chemie N.V. | A method for feeding plants by hydroponic cultivation |
| CN102972269A (en) * | 2012-11-30 | 2013-03-20 | 杭州苗盛生态农业科技有限公司 | Aeroponic method of dendrobium officinale |
| EP4147566A1 (en) * | 2021-09-14 | 2023-03-15 | Korea Institute of Science and Technology | Culture medium composition for increasing amounts of madecassoside and asiaticoside in centella asiatica and method of preparing same |
-
1969
- 1969-11-12 GB GB5545669A patent/GB1318698A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2641945A1 (en) * | 1975-09-17 | 1977-03-31 | Ernst Horst Severin Sjoestedt | METHOD OF SOIL-FREE PLANT GROWING |
| FR2392597A1 (en) * | 1977-01-15 | 1978-12-29 | Fisons Ltd | CULTIVATION PROCESS IN A LIQUID NUTRITIONAL ENVIRONMENT |
| EP0358629A1 (en) * | 1988-08-23 | 1990-03-14 | Epenhuysen Chemie N.V. | A method for feeding plants by hydroponic cultivation |
| CN102972269A (en) * | 2012-11-30 | 2013-03-20 | 杭州苗盛生态农业科技有限公司 | Aeroponic method of dendrobium officinale |
| CN102972269B (en) * | 2012-11-30 | 2013-11-20 | 杭州苗盛生态农业科技有限公司 | Aeroponic method of dendrobium officinale |
| EP4147566A1 (en) * | 2021-09-14 | 2023-03-15 | Korea Institute of Science and Technology | Culture medium composition for increasing amounts of madecassoside and asiaticoside in centella asiatica and method of preparing same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5433766A (en) | Slow-release fertilizer | |
| US4123248A (en) | Controlled release fertilizer | |
| US3285731A (en) | Magnesium potassium phosphate-containing fertilizer and process | |
| De Rijck et al. | Elemental bioavailability in nutrient solutions in relation to precipitation reactions | |
| GB1318698A (en) | Cultivation of plants | |
| US4559076A (en) | Nitrogen fertilization | |
| ES8200631A1 (en) | Non-agglomerating granulated mineral fertilizer. | |
| McGeorge et al. | Studies on iron, aluminium, and organic phosphates and phosphate fixation in calcareous soils | |
| CA2146359C (en) | Slow release fertilizer and active synthetic soil | |
| US3466161A (en) | Granulated potassium chloride fertilizer | |
| GB1207612A (en) | Fertilizer for cereals and process for its manufacture | |
| US2223316A (en) | Stabilized nutrient solution | |
| GB1263570A (en) | Process for making the brushite form of calcium hydrogen phosphate | |
| GB2134506A (en) | Fertilizer composition | |
| GB1406813A (en) | Production of potassium polyphosphates from phosphate acid sludges | |
| RU2662772C1 (en) | Nutritive substrate for growing plants | |
| GB1307828A (en) | Liquid fertilizers | |
| EP0055493B1 (en) | New composition of matter and method of use for nitrogen fertilization | |
| GB376934A (en) | An improved process for the production of mixed fertilisers | |
| US2816396A (en) | Process for use of pyrites cinder in soil treatment | |
| GB1454117A (en) | Process for the manufacture of potassium phosphates | |
| GB780733A (en) | Fertilisers containing trace elements and a process of preparing them | |
| Truog | The liming of soils | |
| MY121805A (en) | A coating process for fertilizers | |
| US3698885A (en) | Process for producing slow-acting potassium phosphate fertilizers |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PE | Patent expired |