Assam, where the gootee or gul-kalam system is largely employed in 

 propagating the orange and the India rubber tree respectively, the 

 rainfall is so copious, that artificial watering, while the gooties or 

 gul-kalams are on the trees and after they are planted out, is scarcely 

 ever found necessary. 



APPENDIX D. 



Add the following to para 823 (p. 516) : 



Nitrogen is principally assimilated as nitrates in combination 

 with inorganic bases. The liability of nitrates getting lost by 

 washing when there is a crop growing in the field, is not, 

 therefore, great. It is in the green and unripe stages of plants 

 that most of the N in them can be traced as nitrates. The 

 N in very immature grass or fodder is not indicative of 

 albuminoids, and it is therefore not advisable to use fodder 

 plants before they flower. The descending sap which goes 

 back into the soil by exosmosis contains Calcium Malate and other 

 compounds which are made up of a base and organic acids. All 

 the bases of the nitrates cannot therefore be traced with the Nitrogen 

 in the plant specially at the later stages of its growth. For instance, 

 for all the nitrogen which can be traced by actual analysis in a ripe 

 crop of wheat (straw and grain), there ought to be found at least 

 loolbs. of bases (calculated as Ca) if all the N is to be accounted 

 for by nitrates ; but only about 2olbs. of bases (calculated as Ca) 

 can be so found. The rest of the bases go back to the soil after 

 performing important physiological functions and acting as vehicle 

 of nitrates. Similarly in the case of the ripe bean crop, for the 

 Nitrogen that is actually traced, there ought to be about 21 5lbs of 

 bases (calculated as Ca), but only about 581bs. can be traced. On 

 the other hand, in the case of a crop that is harvested green, nearly 

 the whole of the base equivalent of the N can be traced. For the N 

 in a mangold crop 30olbs. of bases (calculated as Ca) are necessary to 

 account for the presence of all the N as nitrate, and actually 275lbs. 

 can be so traced. 



