Interactions between medications (drug interactions) fall generally into one of two main categories: 1  pharmacodynamic : Involving the actions of the two interacting drugs. 2  pharmacokinetic : Involving the absorption, distribution, metabolism, and excretion of one or both of the interacting drugs upon the other.
Ideal Temperature Range. The best temperature range for growing a successful lemon tree is between 77 and 86 F. Photosynthesis processes peak at the 86 F. Lemon trees prefer warm weather because it is typically coupled with sunny days for optimum fruit production.
Nitrogen is essential for healthy lemon tree growth and production. Lemon trees (Citrus limon) grow outside in U.S. Department of Agriculture plant hardiness zones 9 through 12. These medium to large evergreen trees possess thorns, fragrant leaves and sweet-sour fruit. Citrus trees like lemons need fertilizing with nitrogen to produce strong growth each year. The best source of nitrogen for lemon trees is commercially available slow-release fertilizer.