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Transpiration of water
On Saturday afternoon, I replaced nutrient for my hydroponic garden. I am
growing tomatoes, sugar snap peas and wax beans. By Monday morning I had to add a lot of water. I have two reservoirs, One containing about 16 gallons and the other about 20 gallons. They are covered with corrugated vinyl plastic but not sealed. This morning I had to add at least 5 gallons to the small one and a bit less with the larger one. Each reservoir is supplying six Dutch pots. I circulate for half an hour every three hours during the day and less at night. The pot is filled with fired clay pellets and coconut fiber. The top. under the pellets is moist. It has been warm here with temperatures inside the greenhouse reaching 100 degrees F or even a bit more. When it gets that hot, I run a swamp cooler. Even so, is this much water loss reasonable? Should I circulate less? Should I push the injectors farther down to reduce moisture on the surface. When I measure the conductivity of the nutrient, it is about double that of the water itself. We have a lot of minerals in our water. Any insight or discussion will be appreciated. Bill |
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