I am growing corn in Hawaii, and something is wrong with some of my stalks. Some are tall and healthy and others are short and sickly looking. The leaves of the sick plants are striped along the length of the leaves, like some sort of deficiency. The type of corn is UH Manoa corn, the soil is N acid low PK, fertilizer used was 10-7-7 (dont have time to test soil). Can you help identify whats wrong?