Multiple Mineral Deficiencies in Fruit Trees : Injection As A First Aid Treatment

The effects of pressure trunk injections of potassium on the mineral content, growth, yield and fruit quality of sweet cherry (Prunus avlumL.) and mineral content of prune(Prunus domesticaL.)

“…Most successful treatments have been for deficiencies of Fe (4,5,6,8,14,16) and Zn (1,8,17) but have also included N and K (3, 9,11,13). These treatments provided a rapid (one growing season or less) but temporary (1-4 years) correction of the mineral deficiency problem.…”