FIELD CROPS. 



1033 



Experiments -with sugar cane, W. Maxwei.i. (II<nr<i./l<iii \Si((j<ir 

 Pl((ii(u:^'\ Si, I. Uj_>L lUOU, j>j>. ■!-',(!. J4.j-oO).--V\\v work licfc reported 

 comprises planting- tests and an iii\' estimation of tiie clieinical composi- 

 tion of diti'erent \ arietii's w ith a view to determining tlie (juuntities of 

 plant food removed from the soil and how they should be returned to 

 it. The results of the planting tests are illustrated in the following 

 tal.le: 



/>///; 



nil iiictliods of plantiwi LaJiaiiid atid Rose Bamboo sugar cane, 'iciih average results 



obtained. 



jrcthods of lOaiitiiiK. 



Two continuous canes in row- 

 One continuous cane in row . 



One eye per 6 in 



One eye per 12 in 



One eye per 18 in 



Canes 

 per 



382 

 313 

 387 

 387 

 359 



Yield 

 per 



Lbs. 

 185, 660 

 193, 180 

 194, 660 

 195, 940 

 175,086 



Density 



of 

 juice. 



20.72 

 19.94 

 19.99 

 19.97 

 20.00 



Sugar Purity 

 coeffl- 

 julce. cient. 



Per ct. 

 17.67 

 17.09 

 16.95 

 17.32 

 16. 95 



84.79 

 85.71 

 84.79 

 86.73 

 84.75 



Sugar 



Per ct. 

 15.74 

 15.31 

 15.18 

 15.51 

 16.18 



Sugar 

 per 

 acre. 



Lbs. 

 29,212 

 29, 575 

 29, 549 

 30, 390 

 26, 670 



Othei' experiments along this line are in progress. 



Comparative tests of 13 varieties of cane, comprising -t varieties 

 already upon the islands and 9 introduced canes, were conducted under 

 identical conditions. The canes used for seed Avere 15 months old. 

 The relative results are given in the following tal)le. 



Rexalls from difj'erent varieties of cane. 



Canes 

 per 

 row. 



Yield 

 per 

 acre. 



Fiber 

 in tlie 

 cane. 



Sugar 



Density. 



Sugar 

 per 

 acre. 



Lahaina 



Rose Baml)oo 



Yellow f'aledonia 



Yellow Hiiniboo 



Moore I'lirjile (Fiji) 



Demarara, No. 117 



Demarara. Xo. 95 



Demarara, No. 124 



Louisiana, TibbooMird.. 



Louisiana, Striped 



Louisiana, Purple 



Striped Singapore 



Big Ribbon 



319 

 340 

 254 

 297 

 490 

 412 

 681 

 176 

 441 

 373 

 411 

 353 

 307 



Lbs. 

 193, 280 

 209, 600 

 182,240 



158. 160 

 80, 560 



186, 240 

 194, 000 

 110,400 

 241,360 

 239, 520 

 153, 360 

 165,040 



232. 161 



Per ct. 



10.9 



9.9 



11.7 



12. 8 



10.3 



10.1 



11.7 



9.3 



9.0 



9.9 



10.0 



10.9 



11.6 



Per ct. 

 15.32 

 14.54 

 12. 36 

 13. 12 

 12.60 

 12. 45 

 15.40 

 12.06 

 13.97 

 14.36 

 13.41 

 16.08 

 11.68 



19.93 

 18.72 

 17.87 

 18.45 

 17.75 

 18.35 

 20.17 

 16.68 

 18.21 

 18.54 

 17.76 

 19.40 

 17.79 



Lbs. 

 29, 610 

 30,475 

 22, 524 

 20, 750 

 10,150 

 23, 186 

 29, 876 

 13,314 

 33, 718 

 34,395 

 20,565 

 24, 888 

 27, 116 



Tibboo Mird and Striped, introduced from Louisiana, more than 

 doubled their yield under Hawaiian conditions, and surpassed all other 

 varieties that were native and used to the Tropics. 



The amounts of fertilizing ingredients removed from the soil In* the 

 respective varieties, and the amounts of these elements used per ton 

 of sugar produced, are reported in the following table: 



