PLANTING OF BAMBOO 



23 



The area planted was 22,000 square meters. The time em- 

 ployed in selecting cuttings was 200 hours, in clearing 207 

 hours, and in planting 140 hours, making a total of 547 hours. 

 Assuming labor at 10 centavos per hour, the cost of planting 

 would be 25 pesos per hectare, planting being at intervals of 2 to 

 3 meters. During the first four years the plantation was cleaned 

 twice a year, which included the cutting back of vines and 

 felling and pruning of trees. This was done at a cost of about 

 10 pesos per hectare, per year, with labor at 10 centavos per 

 hour. 



A second bamboo plantation was started by Dr. F. W. Fox- 

 worthy at the Division of Investigation, Bureau of Forestry, at 

 Los Banos, during June, 1917. This plantation covered 2 hec- 

 tares and was planted with a single species, Bambusa spinosa. 

 The planting was done in the months of June and July during 

 the early part of the rainy season. The ground was covered 

 largely with small trees and climbing bamboos, there being 

 very little grass. The climbing bamboos were cut, but the trees 

 left standing. The planting was done with stump and stem 

 cuttings. The stump cuttings used had roots and were about 

 a third of a meter in length. They were planted either in 

 a slanting position or erect. A stem cutting consisted of a 

 segment with a node at either end. A slit was made in the 

 internode, and then the whole segment buried in the ground, 

 except that the slit was left uncovered to permit water being 

 poured into the internode. In all there were planted 225 stump 

 cuttings and 800 stem cuttings. 



All of the living shoots were counted and measured during 

 December, 1917, and again at the end of June, 1918, when the 

 plants were about a year old. The results of the measurements 

 are given in Table 4. An examination of Table 4 shows that 

 at the end of the year 59 per cent of the stump cuttings and 

 40 per cent of the stem cuttings were alive. A comparison of 

 these figures with those given in Table 3 indicates a greater per- 

 centage of success in the second than in the first plantation. 



Table 4. — Record of plantation of Bambusa spinosa at Division of Inves- 

 tigation, Bureau of Forestry, Los Banos, Philippine Islands. 





Number 

 of cut- 

 tings 

 planted 

 June 

 July. 

 1917. 



December, 1917. 



June, 1918. 



Number 

 living. 



Height, 

 centi- 

 meters. 



Percent- 

 age liv- 

 ing. 



Number 

 living 



Height, 

 centi- 

 meters. 



Percent- 

 age liv- 

 ing. 





225 



198 

 560 



150 



88 



133 

 320 



260 



59.1 



Stem cuttings. 



800 



150 70 



210 1 40.0 















