CANE SUGAR. 



"We proved that differences in the juice of the descendants of rich 

 and of poor canes are already visible at an age of thirty weeks, and that it is 

 possible to perform the selection at that age in the fields we use in Java for 

 the propagation of cane cuttings. Highly selected canes of twenty weeks did 

 not show any difference in^the juice of the rich and the poor plots." 



Field Ledger. A sugar plantation being often a self-contained unit 

 affords a unique opportunity for the systematic accumulation of valuable data 

 which in a few years form a valuable guide ; such data may conveniently be 

 entered in a ' Field Ledger,' using one double page to each field and one line 

 to each year or crop ; such a ledger should contain columns for entering up the 

 following data, the exact mode of bookkeeping followed being governed by 

 local considerations : Year ; rotation (plant or ratoons, green crop, &c.) ; 

 variety ; tons of cane and sugar per acre ; % sucrose in cane and purity ; 

 nature of soil ; cultural operations ; prevalence of pests and diseases ; manure 

 applied ; lime applied ; agricultural and fertility (citric acid) analyses of soil ; 

 inches of rain and irrigation water ; mean temperature ; date of planting, 

 harvesting and period of growth ; date of arrowing. 



EEFERENCES IN CHAPTER VIII. 



1. I. S. J., 66 and 67. 



2. Stubbs' Sugar Cane, p. 113. 



3. Dept. of Land Records and Agric. Madras II. , p. 202. 



4. Stubbs' Sugar Cane, p. 145. 



5. Southern Agriculture, pp. 128-135. 



6. S. C., 314. 



7. Cultur de la Canne a Sucre, p. 129. 



8. Bull. 25, Agric. H.S.P.A. 



9. Loc. cit., 3, supra, 10. 



10. 7. S. J., 68. 



11. S. C., 294. 



12. 8. C., 346. 



13. I. S.J., 90 and 91. 



126 



