questions: query regarding how to improve the growth of litchi plant. 
 
 answers: spray npk 19:19:19 10 gram/liter of water 2 times at 15 days interval in the evening time. after complition of this. please spray one vitamins like- mohaphol/sagorika/biovita 2 ml/liter of water at 15 days interval continously up to the end of the season.