Coffee. Tea. Cocoa. Trends and problems.Although tea will grow successfully on many types of soils, the quality of the leaf, like that of tobacco, is strongly influenced by soil. ... Potash and phosphatic manures, although required for the framework and general health of the plant, have little or no effect on its productivity. ... years of experimentation . . . in Assam, . . . ends in putting artificials at a discount ... as the density of the shade canopy increasesanbsp;...
|Title||:||Coffee, Tea, and Cocoa|
|Author||:||Vernon Dale Wickizer|
|Publisher||:||Stanford University Press - 1951|