Question
Hi, I was looking at a Stark catalog and it recommended Zinc Sulfate as a fertilizer. I live in west central Missouri, and have planted about 300 Native Pecan seedlings (1' - 3'). The pH of the sandy clay loam is approximatly 6.3, and is very well drained bottom land. There is at least 3' of top soil thru out the 7 acre field. Don't know when it was last limed, but was used for corn/soy beans during the last 10 years (less 2 years since I started the pecan trees). I am also planning on
filberts this coming spring. Do you think that the zinc sulphate is a m.nutrient that would need to be added? Any other comments?  

Answer
Here is a web link to information on pecan growing. http://attra.ncat.org/attra-pub/pecan.html
I would strongly advise taking a soil sample and sending it to the State Soil Testing Lab. This soil test will give you the fertilizedr needs as well as liming needs--if asoil is not properly limed than you will waste fertilizer since the plant can not uptake the fertilizer. Your local Agriculture Extension office can help with this. Soil testing Information for Missouri: http://muextension.missouri.edu/xplor/agguides/soils/g09110.html