Adequate levels of foliar nutrients are presented in Table 2. Table 2 . Levels of adequate foliar nutrients for commonly grown Christmas Tree species in Georgia. The balance or ratios of foliar nutrients to one another are useful indicators of nutrient sufficiency. The ratio of P, K, Ca and Mg to N, and Fe to Mn are commonly examined.
Corrective Measures Use the soil and foliar analyses to evaluate each stand.
The soil test information will provide fertilizer application rates. Also judge the overall vigor of the trees, soil drainage, insect and disease problems, weed control, which influence growth and quality. Nitrogen Low N can be boosted by a variety of N fertilizers. Limit total N applied to 20 pounds per acre per year. Phosphorus Surface applications of P can only move into the surface inch of soil and may not reach the roots.