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  • diannemw commented on diannemw's instructable Kratky's non-circulating hydroponics3 weeks ago
    Kratky's non-circulating hydroponics

    From what I understand about tomato plants, they are actually an perennial rather than annual. They are grown and assumed to be seasonal because of the change in weather. That said, every cycle of production from the plant yields less than the one before. We keep our plant going, in Hawaii, until it dies of something like infestation or disease and then start over. Also, we moved our tomatoes and cucumbers into 32 gallon garbage cans, there's enough water that we only have to refill twice while the plant is producing and it's very convenient, the brute cans use a food grade plastic. Let me know what you experience!

    From what I understand about tomato plants, they are actually perennial rather than annual. They are grown and assumed to be seasonal because of the change in weather. That said, every cycle of production from the plant yields less than the one before. We keep our plant going, in Hawaii, until it dies of something like infestation or disease and then start over. Also, we moved our tomatoes and cucumbers into 32 gallon garbage cans, there's enough water that we only have to refill twice while the plant is producing and it's very convenient, the brute cans use a food grade plastic. Let me know what you experience!

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  • diannemw commented on diannemw's instructable Kratky's non-circulating hydroponics6 months ago
    Kratky's non-circulating hydroponics

    Please reference the pictures of nutrient included in this instructable for more information regarding nutrient ratios for specific plants. If the answers to your questions can't be answered from what I've provided please consult your local university's horticultural department, a hydroponics retailer, or a company that manufactures NPK.

    The ratio I use is one gallon of nutrient water per head of lettuce--usually one month to six weeks. You can just start over with new seed once the water has been used up or you can refill half way if the plant has more to offer.

    You can totally do this indoors!

    Hi, sorry for the delayed response... For the nutrient, a 9-9-9 NPK is a base formula that you augment based on what you are growing. You should find nutrients specific to vegetables and/or fruit and you should not compromise quality. I grow my lettuce outside, under our house eaves, you'll want to prevent rain water from diluting your nutrient solution. I plant my seed directly in the net pot all the time. You should absolutely fill your container with nutrient solution to the net pot so that the moisture and nutrient reach the seed. Only when refilling do you fill it up part way so that the roots can take up oxygen and not drown. I'm not sure how the lettuce will do at that temperature, but my guess is that it will grow more like a vine than a tight cluster (still edible) and you will...see more »Hi, sorry for the delayed response... For the nutrient, a 9-9-9 NPK is a base formula that you augment based on what you are growing. You should find nutrients specific to vegetables and/or fruit and you should not compromise quality. I grow my lettuce outside, under our house eaves, you'll want to prevent rain water from diluting your nutrient solution. I plant my seed directly in the net pot all the time. You should absolutely fill your container with nutrient solution to the net pot so that the moisture and nutrient reach the seed. Only when refilling do you fill it up part way so that the roots can take up oxygen and not drown. I'm not sure how the lettuce will do at that temperature, but my guess is that it will grow more like a vine than a tight cluster (still edible) and you will have to refill the nutrient more often. One more thing... I've changed my growing medium to cinder and am much happier with the results... No algae!

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  • diannemw followed diannemw6 months ago