Consult your County Agricultural Extension Office for instructions on how to take soil samples and where to send them. f Nitrogen. ... On fruit trees, the purple color is often seen on leaf stems. r Potassium shortage causes leaf yellowing like insufficient nitrogen a but the yellowing is restricted to leaf ... Leaf veins may turn light green, or entire leaf may lighten a but never turn completely yellow or brown.
Title | : | New Garden Book |
Author | : | Better Homes and Gardens |
Publisher | : | - 1968 |
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