Greetings!
I would like to do some research on fertilizing plants, when it is appropriate to do so, and why. I am interested in knowing about 'when' a plant uses different nutrients. For example, I know a plant doesn't use nitrogen during the colder months, but what signals the change... is is hormones? day length? temperature? And if plants can't use any of the Big 3 N-P-K during the winter, what about elements such as iron or magnesium?
Take a saw palmetto, for instance. Last winter I noticed (maybe for the first time) how yellow they had turned out in their native habitat, uncultivated. Then through the summer they were nice and dark green and healthy looking. And this winter... yellow again.
Can anyone give me any clues or refer me to any links on this subject?
Thanks so much,
Kay
I strongly suggest that you refer to a reliable text on plant physiology. The one I prefer is PLANT PHYSIOLOGY edited by Lincoln Taiz and Eduardo Zeiger. The library call letters are QK 711.2; T35; 1998.It will really open your eyes on just how plants operate.
I think studying physiology of plant growth and will help you as suggested by taxonomist. Ofcourse, this is is very wide subject to be covered by gardener. Understanding photosynthesis,respiration, transpiration,role of phytochroms,effect of red and far red and other light wave lengths on plant growth and working of hormons at different growth stages will help .