CHAPTER VI. 



SOILS AND MANURES. 



CHEMICAL, PHYSICAL, AND BIOLOGICAL CONDITIONS 

 OF SOILS. 



THE investigation of various soils in which Para rubber trees 

 have been successfully cultivated tends to show that it is not 

 fastidious in regard to its requirements in this respect, as the 

 chemical and physical qualities of many of these soils are com- 

 paratively poor. Below is given an analysis of soil from the 

 Heneratgoda Garden, Ceylon, in which Hevea trees have been 

 grown for about thirty years, and also an analysis of soil taken 

 from the uncultivated pasture land adjacent* 



CHEMICAL COMPOSITION. 



Circular, Royal Botanic Gardens, Ceylon, vol. Hi., No. 6. 



