- C M Menzel, D R Simpson and G F Haydon
-
Maroochy Horticultural Research Station, Queensland Department of Primary Industries,
PO Box 5083, SCMC, Nambour, Old 4560, Australia - 1996
Lychee (litchi) seedlings were grown in sand culture with different levels of applied N (nitrogen) to determine the optimum concentration of N in the plant for growth and potential yield. Differences in shoot growth above and below 1.2% N in leaves were not reflected in large differences in leaf colour. These results suggest that productivity will be affected long before leaves yellow. Growers need to monitor the levels of Nin their orchards and maintain them above 1.2% for optimum production.