(a) Discuss three effects of each of the following factors on crop production: (i) water; (ii) air; (iii) soil microbes. (b) List three edaphic and four cli...
(a) Discuss three effects of each of the following factors on crop production: (i) water; (ii) air; (iii) soil microbes. (b) List three edaphic and four climatic factors that affect crop productivity.