One of the plots in the farm has exhibited stunted/slower growth than rest of the trees. I know the soil is not the most fertile, so I got tested for the major nutrients. Here are the results with acceptable or preferred range in the brackets.
Nitrogen kg/ha - 207 (> 450 is considered high, result low )
Phosphorpus kg/ha - 50 (> 22 is considered high. result high)
Potash kg/ha 224 (> 280 is considered high, result medium )
Organic carbon % .18 (>.75 is considered high, result low)
Fe ppm 4.98 (>3.7 is considered sufficient, result sufficient)
Mn ppm 11.59( > 11 is considered sufficient, result sufficicent)
Zn ppm .42 (>1.2 is considered sufficient, result deficient )
Cu ppm .54 (>2 is considered sufficient, result deficient)
Based on the above results, what would you suggest to do, how much and how frequently. Pls note, so far we have not given any fertigation to any of the plots of melia dubia.