First, you are trying to fertilize a container tree with an organic fertilizer 3-1.5-2. What makes organic fertilizers, such as Citrus Tone and many other brands, available to the tree are microorganisms. Microorganisms react with an organic fertilizers to break them down into a form that is useable by the tree. Organic fertilizers are OK for trees planted outside in the ground because of the millions of microorganism per gram of soil. However, container culture does not contain no where enough microorganisms to achieve the nutritional availability of your fertilizer. Organically derived ferts are extremely inefficient when applied in a container setting. And they also tend to lack many of the required micronutrients. Your tree would be better served with a liquid synthetic with a full range of required plant nutrients and in the correct proportions. As you only have one tree to feed I would recommend something like Foliage Pro 9-3-6. The fertilizer you used is why you did not see any favorable results after you applied the 3-1.5-2 fertilizer. Laaz. is correct, your tree is not getting enough sunlight. It should have been place right next to the window. Even then citrus trees growing in doors through the winter always have trouble. Second, looking at the pictures you supplied, I do not think the problem is a deficiency of magnesium or iron. Deficiencies of these two elements always show up on the tree's new leaves, not the older leaves of the tree. Also the leaf pattern in you picture is not correct for magnesium or iron. The deficiency is manganese, but you do not have to worry about it at this time because the deficiency will correct itself after you begin to apply an appropriate fertilizer. Citrus are heavy feeders, requiring more nutrition than most plants. This tree should be fertilized approximately once every two weeks.
Topic: Bearss lime tree needs help (Read 1349 times)