Flower seedlings in a pot or plant iron deficiency, for inter veinal chlorosis or only larger veins remain green, serious when entire interveinal chlorosis or only larger veins remain green, even the whole leaf is yellow white or leaf margin and tip withered and sometimes expanding inward, sometimes lead to top the leaves to fall off, the emergence of the phenomenon of "dieback". Flowers once appear iron deficiency chlorosis, we seedling planting base are generally according to different varieties every 3 to 5 days in foliar application of 0.1% ~ 1% ferrous sulfate solution, also a week pouring Shi a thin alum fertilizer, diluted 10 to 20 times to new and old leaf green complex so far. In addition, we have used the following methods in the early stage of the growth of the new animal husbandry and planting base:
1. For woody plants can be 0.2% ~ 0.5% ferrous sulfate solution by transfusion method slow input woody stems within the Department if the wood is soft, but also be used syringes each into the amount of, leaves to completely turn green so far.
2. The stem stem or a radish with a sharp knife splitting, then according to plant size each time the 0.05 ~ 2 grams of amount of ferrous sulfate sandwiched crack and plastic film bandage. The large woody class can also drill a small hole in stem or root, then 1 grams or 2 grams of ferrous sulfate into the hole, sealing wax.
3. According to the specific circumstances, 0.2% ferrous sulfate solution Sheng into the appropriate size of the glass bottle, we seedling planting base is in the flowers and trees around the appropriate position undercut, looking for fine root truncation. Then the cut-off position into the solution in the bottle is buried. A week later removed or replaced.
4. The combination of prevention and treatment of diseases, the preparation of iron and copper Bordeaux is copper sulfate, ferric sulfate, lime and water mixed liquor and general copper sulfate, ferric sulfate: high quality lime: water = 1: 1: 0.5 ~ 2: 200 to 240 spraying plants, both can prevent disease, and iron supplementation, while at the same time to avoid the harm of Bordeaux mixture in copper caused by excessive. Seedling cultivation base here need everybody to notice is: according to different varieties of rational use of the Bordeaux mixture, peach, plum, apricot, plum of sensitive copper in the growth period with caution, Solanaceae, tea tree, melons, grapes and other sensitive lime application of grey small amounts of Bordeaux mixture, which copper sulfate, ferric sulfate: Lime = 1: 1: 0.25 ~ 0.5.