Gary Edwards Anamosa, Iowa | This is not a nutrient deficiency and adding any amount in any form or fashion will not solve the problem. It is a root problem that is common in sandy soils. When this soil zone is dry, uptake is limited. Anything that exerts additional stress or limits root growth--compacted soil layers, root pruning, dry soil, side-wall smearing--further reduces K uptake, especially when root growth is restricted in the zones of highest available K. Rain is the only corrective action. |
nutrient deficiency?
