This symptom appeared when the palm tree is suffering from Nitrogen (N) – deficient palm. Therefore, the growth is retarded.
 phosphorusThese symptoms appeared when the tree is suffering from Phosphorus (P) – deficient palm and poor soil phosphorus reserve.
This symptom is related to Potassium (K) – deficient palm.
The symptom descried is “bunch failure”, probably due to Potassium (K) – deficient palm.
The symptoms mentioned is chlorosis, it is also caused by Magnesium (Mg) – deficient.
The symptoms stated is the outcomes of Boron (B) – deficient fronds.
The symptoms specified is caused by imbalance of Nitrogen (N), Potassium (K) & Boron (B).