John W NkhalambaJohn has a doctorate degree in soil chemistry and fertility from the University of Reading in the United Kingdom, and a BSc degree in chemistry and earth sciences from the University of Malawi, Chancellor College. He is a published author in a scientfic journal Geoderma on soil chemistry and fertility. John has worked in agricultural research institutions, both in Malawi and Mozambique, and he has taught at Pedagogical University in Mozambique. He has also worked at Cawood Scientific Laboratories in the United Kingdom. Read More Read Less