So I have decided to test a mycorrhizal fungus inoculant on lettuce this season. I will be using one of the leaders (most recommended) in these products: plant success great white. I will use black seeded Simpson lettuce as the test plant. I will use a mix of perlite and turface in a 1:1 ratio for the medium (both are sterile so there will be no contamination) in small plastic cups (drainage holes will be provided), 1 teaspoon of greensand will be added to each cup, as well as 1/4 tsp of osmocote for the CRF. The plants will be seeded in the mix to avoid contamination, and applications of the product will start at the first true leaf stage, and will continue at the recommended rate on the label.
I will not grow these plants to seed. If there is a signicant difference in size and quality I will stop the experiment to weigh root mass and top mass. If thee is no significant difference in the plants, I will wait until the recommended maturation time has passed (45 days), then weigh in the plants.
I have not decided on water and fertilizer schemes yet, there are two options: water and fertilize (fertigate) as need, or fertigate consistently. I could do the same amount each time, or change based on individual plants needs (the product claims to expedite nutrient uptake, so of I fertigate both the same the controll might be fine but the subject might get burn, or the subject will be fine and the controll will be slightly deficient). I leave this aspect up to you guys: would you rather me fertigate consistently, or as needed?
I will try to place them so that they get the same amount of light, but it may differ by a few minutes each day (I live in an apartment on the third floor, so I cannot guarantee equall lighting for both, but the difference is very small, and I will rotate them so they get the same total amount).
Any ideas, changes, or bets on the outcome are welcome.
Bob
organic_popeye
ssmdgardener
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