Hydroponic Kheti Measuring Instruments | Hydroponic Kheti In Jharkhand | Hydroponic Farming :
Hydroponics is a method of growing plants with the use of nutrient solution instead of soil less.
Hydroponics is a subset of hydro-culture, is the art of growing plants without soil. Plants grow with just mineral solutions in a water solvent.
Measuring pH
This is most easily done with a meter but there are also various kits using liquids or papers which are available. Kits are adequate for applications such as pot culture where the nutrient is supplied to the plant once and is used up before being replaced. Where growers are using re-circulating systems such as NFT or Ebb and Flow will certainly ideally need a meter to monitor their solution accurately. It should be remembered that meters may require regular calibration.
pH In Passive Hydroponics
Passive hydroponics, where the growing takes place in pots full of a medium such as Green mix or Perlite or to hand-watering RockWool slabs, we would recommend the grower to make up a large container of nutrient at a time. A 250 Litre plastic storage container is ideal. Once this is made up to the correct "strength" the pH can be checked and adjusted to the ideal level of 5.5-6.5 pH. A note should be made of the exact amount of pH UP or
DOWN that is added at this time. In future this amount can be added as routine when making up solutions and the pH should remain pretty constant from batch to batch although spot checks are recommended from time to time. A good pH Kit should be used for this because although the pH measurement takes longer than with a meter, it only needs doing occasionally. The nutrient solution in the storage container should remain quite pH stable and can be applied to the plants as needed.
DOWN that is added at this time. In future this amount can be added as routine when making up solutions and the pH should remain pretty constant from batch to batch although spot checks are recommended from time to time. A good pH Kit should be used for this because although the pH measurement takes longer than with a meter, it only needs doing occasionally. The nutrient solution in the storage container should remain quite pH stable and can be applied to the plants as needed.
pH In Active Systems
Active systems, where the nutrient solution is supplied to the plants by pumping, such as Ebb and Flow tables or NFT systems, the solution is re-circulated to the roots continuously. Over a period of time the pH will need checking and adjusting in the main tank on a regular basis. In most systems fresh water is added to that used by the plants. The incoming water is usually of a higher pH than the nutrient solution so there tends to
be an upward drift in pH. This can be corrected by the regular addition of small amounts of pH DOWN. This process of pH control can be carried out with a pH Kit but as it needs doing often the busy grower should use a meter.
be an upward drift in pH. This can be corrected by the regular addition of small amounts of pH DOWN. This process of pH control can be carried out with a pH Kit but as it needs doing often the busy grower should use a meter.
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