100 



been suggested as manures for quality in Ceylon, As at present the)* 

 are expensive in the latter case very expensive and of no present 

 proved value I cannot recommend them. 



We therefore limit the possibly profitable manure in Assam for 

 the present to the following : 



1, Bheel Soil and Top-dressing material of all kinds. 



2. Cattle Manure. 



3 Green Manuring. 



4. Fertilising Trees and Bushes. 



5. Bones. 



6. Oil cakes chiefly those of castor and mustard. 

 These are all more or less complete manures. Of those useful 



for special constituents we have 



7. Nitrate of Soda, or Potash in rare cases for nitrogen. 



8. Superphosphate from Bones or from Mineral Phosphate 



for phosphoric acid. 



9. Basic Slag for phosphoric acid and lime. 



10. Wood Ashes for phosphoric acid and potash. 



1 1. Sulphate or Muriate of Potash in rare cases for potash. 



12. Lime. 



I have already, under each heading, pointed out the utility of 

 each of these, but it remains now to submit certain general consider- 

 ations on the methods in which it should be carried out. 



1. I am strongly of opinion that manuring should always be 

 carried out the year before heavy pruning a plot. Thus, if a section 

 is to be cut down in December 1902, it should be manured with 

 whatever it needs in the winter of 1901-1902. This is on the prin. 

 ciple that before a serious operation is undertaken, the general health 

 of the bush should be as great as possible, and the manure should 

 be so incorporated with the soil, that without undue stimulation the 

 bush recovers from the serious cutting. 



2. In 1898, Dr. Watt hinted in several places that rotation 

 of crops in some form or other was imperatively needed in tea 

 gardens. In this, I am at one with him, and would add that there 

 is equal need of rotation of manuring, and would suggest here 



