162 



The Philippine Journal of Science 



1913 



EXPERIMENTS WITH FERTILIZER 



Data regarding the corresponding plots on which fertilizer was 

 used are given in Tables IV, V, and VI. 



Table IV. — Data showing the planting followed in fertilized plots. 



Plot No. 



Plot dimen- 

 sions. 



Distance 



between 



rows. 



Distance 



between 



ends of 



seed 



cane. 



Tops per 

 hectare. 



V-A- .. 



Meters. 

 33. 3 by 30 

 33. 3 by 30 

 28. 3 by 30 

 33. 3 by 30 



Meters. 

 1.20 

 1.20 

 1.20 

 1.20 

 1.20 

 1.20 



Meter. 

 0.50 

 .50 

 .50 

 .50 

 .33 

 .33 



10, 416 

 10, 416 

 10,416 

 10, 416 

 13, 778 

 13, 778 



V-B 



VI-A 



VI-B 



VII-A 



VII-B 



33. 3 by 30 





Table V. — Data showing the fertilizer used on these plots. 



Plot No. 



Ammo- 

 nium sul- 

 phate per 



hectare. 



Potas- 

 sium sul- 

 phate (90 

 per cent) 

 per hec- 

 tare. 



Calcium 

 super- 

 phos- 

 phate 



per hec- 

 tare. 



Dried 

 blood per 

 hectare. 



Cost per 

 hectare. 



V-A 



Kilos. 



Kilos. 



Kilos. 



Kilos. 



Pesos. 



V-B 



80 



120 



200 





44 



VI-A 





VI-B 



80 



120 



200 



150 



62 



VII-A 



VII-B 



40 



60 



100 





22 







Table VI. — Average condition of cane in these plots. 



Plot No. 



Growth 

 in length 

 per week 



from 

 Aug. 30, 

 1910, to 

 Apr. 20, 



1911. 



Length 



from base 



to longest 



leaf on 



Apr. 20, 



1911. 



Circum- 

 ference 

 on Apr. 

 20, 1911. 



Produc- 

 tion of 

 leaves 

 per week 



from 



Sept. 13, 



1910, to 



Apr. 20, 



1911. 



Per cent 

 of har- 

 vestable 

 suckers 

 to orig- 

 inals. 



Harvest- 

 able 

 sucker 

 per hec- 

 tare. 



Originals 

 per hec- 

 tare. 



Yield of 

 stripped 

 cane per 

 hectare. 



V-A 



Meter. 

 0. 0495 

 .0566 

 .0385 

 .0576 

 .0416 

 .0592 



Meters. 

 2. 6810 

 2. 9621 

 2.2284 

 2. 8008 

 2.3054 

 2. 9262 



Meter. 

 0.0878 

 .0828 

 .0848 

 .0960 

 .0810 

 .0816 



0.900 

 .849 

 .932 

 .948 

 .875 

 .939 



88 

 111 

 71 

 93 

 55 

 106 



54,996 

 69,370 

 44,452 

 58,121 

 45,467 

 87,628 



62,496 

 62,496 

 62,496 

 62,496 

 82,668 

 82, 668 



Kilos. 

 240.8 

 332.6 

 287.4 

 (?) 



280.4 

 350.5 



V-B 



VI-A 



VI-B 



VII-A 



VII-B 







The data for unfertilized plots V-A, VI-A, and VII-A are in- 

 cluded in Table VI for comparison with the corresponding fer- 

 tilized plots V-B, VI-B, and VII-B. 



