Quote:
Originally Posted by GpsFrontier
Yes this is the reason that more is better in general. I read somewhere that strawberry's need a minimum of .5 litters of nutrient solution per plant. I don't know if this is true, and I have never found a chart with requirements for this information to compare with for any plant. |
I was wondering if there was any type of chart or guide that shows nutrient requirements for individual plants, vegetables, etc.
Quote:
Originally Posted by GpsFrontier
Some plants are heavy feeders and should use more nutrient solution because they use the nutrients faster than plants that are not. Also how often you change the nutrient solution is a factor. |
So if things are good , topping off seems to work , then changing the solution just because it's been 2 weeks wouldn't be needed ? Not sure if this question is leading away from your main point.
Quote:
Originally Posted by GpsFrontier
There are also other things to take into consideration like how big the plant is (seedling/full grown), air temp, type of plants etc.. The type of plant can play a big difference in how much water it drinks. A full grown strawberry plant wont drink as much water as a full grown broccoli plant will. The air temp and humidly affect how fast it will evaporate also. Amigatec's suggestion is a great place to start, although careful observation is important also. I would suggest marking the inside of the reservoir with a permanent marker at a known level, or in increments to be able to keep track.
Also when adding water to bring it back up to the right level, don't add full strength nutrient solution. Either just plain water or a light diluted nutrient solution should be added. There is no formula to figure out how much to dilute it that I know of. Some people use a PPM or TDS meter to judge how strong there nutrient solution is and make adjustments by its readings. I personally don't have one. I change my nutrient solution every one or two weeks. I never add any diluted solution the first week but I will probably add some the second week, and depending on how much water I have needed to add during the first week I will decide how much I need to add for the second.
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Thank you for all that good advice and information. I had been just looking at TDS meters. Anyway that is a negligible part of it.