Productive Farming: Or A Familiar Digest Of The Recent Discoveries Of Liebig, Johnston, Davy, And Other Celebrated Writers On Vegetable Chemistry is a book written by Joseph A. Smith in 1843. The book is a comprehensive guide to the latest discoveries in the field of vegetable chemistry and their application to farming. It covers topics such as soil composition, plant nutrition, and the use of fertilizers. The author draws upon the works of prominent...