[ 4" ] 



624. It should be noted here that the crushing of the 

 canes out of the Bone-charcoal plot was done a month too. 

 early, and had it been done at the same time with the other, 

 this plot would have shown still better result. The value ot f 

 phosphatic manures for sugar-cane is so well-recognised, 

 that confirmation of the fact is hardly needed^ 



CHAPTER LXVIL 



P~ '-I-' i *( 

 INDIGO. i iM 



T VARIETIES. The variety of indigo grown in Bengal (?.< 

 Indigofera tinctoria) is not the richest in Jndican, and 

 the Madras variety (Ind. anil) is still poorer. The varieties, 

 richest in the dye-stuff are Ind. Oligosperma and Ind. Leptosr 

 tachya of Java and Natal. Seed of Indigofera Oligosperma 

 should be procured and grown for seed under proper con- 

 ditions of soil, manure and cultivation. A dry climate suck 

 as that of the N.-W. P., and soil naturally rich in lime/; 

 should be chosen for a seed-farm for indigo. 



626. Manure. Indigo like all leguminous crops groyys 

 best on soils rich in lime. Hence the superior yield of some 

 Bihar districts. Potash and phosphates in the soil are also 

 helpful. The application of manures containing phosphates, 

 lime and potash in a concentrated form is , being thought of 

 seriously by indigo planters since the crisis in the trade hasv 

 been brought about by the increased employment of the 

 Synthetic indigo. Mr. Hancock, the Agricultural Chemjst 

 employed by the Bihar planters reports an increase of 63. 



