Yellow leaves with green veins are symptoms of leaf chlorosis, a condition caused by an iron deficiency. Does the soil have too much clay?
Is your soil compacted or waterlogged?
Did you add a fertilizer rich in phosphorus to the soil?
Clay soil lacks organic material. The lack of organic material is the reason that a plant cannot get iron from clay soil. There are trace nutrients in organic material that the plant needs to take the iron into its roots. If clay soil is causing iron chlorosis, correcting an iron deficiency in plants means working in organic material like peat moss and compost into the soil.
If your soil is compacted or too wet, the roots do not have enough air to properly take up enough iron for the plant. If the soil is too wet, you will need to improve the drainage of the soil. If you are unable to correct the drainage or reverse compaction, you can use a chelated iron as either a foliar spray or a soil supplement.
Too much phosphorus can block the uptake of iron by the plant and cause leaf chlorosis. Typically, this condition is caused by using a fertilizer that is too high in phosphorus. Use a fertilizer that is lower in phosphorus to help bring the soil back in balance.
If your plant is growing in the soil with a pH over 7, the soil pH is restricting the ability of the plant to get iron from the soil. To be sure, you can have your soil tested. Adding sphagnum peat will make your garden soil more acidic. Add an inch or two of peat to the topsoil in and around plants, or during planting. Another solution is to water plants several times with a solution of 2 tablespoons vinegar to a gallon of water. This is a great way to adjust pH in container plants.
https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/raise-acid-level-soil.htm
https://www.gardeningknowhow.com/plant-problems/environmental/leaf-chlorosis-and-iron.htm
Sreten null
Hi! I’m Sreten Filipović. I graduated from the Faculty of Agriculture at the University of Belgrade, with a master's degree in Environmental Protection in Agricultural Systems. I’ve worked as a researcher at Finland's Natural Resources Institute (LUKE) on a project aimed at adapting south-western Finland to drought episodes. I founded a consulting agency in the field of environment and agriculture to help farmers who want to implement the principles of sustainability on their farms. I’m also a founding member of the nonprofit organization Ecogenesis from Belgrade whose main goal is non-formal education on the environment and ecology. In my spare time, I like to write blog posts about sustainability, the environment, animal farming, horticulture, and plant protection. I’ve also published several science-fiction short stories.
You can find me on LinkedIn at https://www.linkedin.com/in/sreten-filipovi%C4%87-515aa5158/
