Once the flowers have iron deficiency chlorosis, they can spray 0.1-1.0% ferrous sulfate solution on the leaves every 3-5 days according to different species, and apply thin slush fertilizer (diluted 10-20 times) weekly. Once, until the old and new leaves are green again.
Of course, there are other ways to prevent iron deficiency and chlorosis in flowers and trees. Here are some other methods of prevention and treatment of iron deficiency chlorosis in seedlings.
1. For woody flowers and trees, 0.2%-0.5% of ferrous sulfate solution can be slowly input into the xylem of the trunk with a bottle infusion method (if the wood is soft, it can be injected with a syringe each time) until the young leaves turn green completely. .
2, plant stems or larger roots with a sharp edge chap, and then according to the size of the plant each time 0.05-2 grams of ferrous sulfate into the cracks in the right amount, wrapped with plastic film; for larger woody species can also be in the dry or root A small hole was drilled, and 1 g or 2 g of ferrous sulfate was inserted into the hole and sealed with paraffin.
3, according to the specific circumstances, 0.2% of ferrous sulfate solution into the appropriate size of glass bottles. Dig roots in appropriate positions around the flowers and trees, find the small roots and cut them into the solution in the bottle and bury them. After one week, remove them or replace them.
4, combined with disease prevention, preparation of iron and copper Bordeaux mixture is a mixture of copper sulfate, iron sulfate, lime and water (usually copper sulfate: high-quality stone: water = 1:0.5-2:200-240) spraying diseased plants, Can not only prevent disease, but also can make up iron, at the same time can avoid excessive harm caused by excessive copper in Bordeaux mixture, attention should be rational use of the Bordeaux mixture according to different varieties, peach, plum, apricot, plum and other sensitive to copper in the growth phase with caution , solanaceae, tea trees, melons, grapes and other lime-sensitive people apply a small amount of Bordeaux mixture (including copper sulfate: iron sulfate: lime = 1:1:0.25-0.5).
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