Yourgos, the low floral intensity of the return bloom after an on crop year in an alternate bearing tree is attributed to the low carbohydrate reserves in the tree after it has produced a heavy crop. Similarly, after an off crop year, trees have a larger carbohydrate reserve that supports a large number of ilnflorescences and the stetting of an on crop. Tree nitrogen status and reserves of other essential mineral nutrient follow the same patter, plus the hormones IAA, ABA & cytokines are also involved. Fruit thinning during the on crop year has shown a great potential for increasing both the size of fruit in the on crop year, and also increasing a greater fruit yield the following year. As seen above, the nitrogen reserves and essential mineral nutrients are also depleted during the heavy on crop year Applying low biuret urea as a foliar spray would be helpful replenishing the nitrate reserve of the tree. However, I still believe that crop thinning should also be done.