IX, A, 1 



Cox and Argiielles: Soils of Luzon 



41 



I 





s 



n 



n 

 u 



a 



From a coconut grove about 0.5 kilometer 

 north of the railroad station, b 



From a coconut grove 0.5 kilometer on the 

 north side of the road from the town. <^ 



From a coconut grove 1 kilometer from the 

 town on the north side of the Santa Cruz- 

 Pagsanjan road. ^ 



From a coconut grove northwest of the rail- 

 road station, c 



From a coconut grove 1 kilometer from the 

 railroad station on the Tiaong road. ' 



6 



u 

 a 

 o 

 w 



Magdalena, La- 

 guna. 



Pagsanjan, La- 

 guna. 



Santa Cruz, La- 

 guna. 



San Pablo, Laguna-. 

 Tiaong, Tayabas 



at 



P.ct. 



100 



100 

 100 



100 

 100 



Soil 



acidity 



(per 



cent 



CaCOs). 



0. 01310 



0. 00315 

 0.00250 



0.00315 

 0. 00187 



J. M 



P.ct. 

 0.98 



0.96 

 0.79 



0.68 

 1.73 



^1 



wZ 



P.ct. 

 0.66 



1.19 



0.70 



0.86 

 0.79 



Pot- 

 ash 

 (K2O). 



P.et. 

 0.485 



0.341 

 0.149 



0.211 

 0.239 



Magne- 

 sia 

 (MgO). 



P.ct. 



0.44 



0.26 

 0.09 



0.32 

 0.42 



.S 01 



P.ct. 

 0.63 



1.27 

 1.85 



2.92 

 2.49 



Phos- 

 phoric 

 anhy- 

 dride 

 (P2O6). 



P.ct. 



0.128 



0.202 

 0.236 



0.281 

 0.324 



Nitro- 

 gen 

 (N2). 



P.ct. 

 0.143 



0.105 

 0.088 



0.104 

 0.127 



Loss 

 on ig- 

 nition. 



P. et. 



12.24 



6.23 

 5.08 



5.82 

 7.36 



Mois- 

 ture 

 (H2O). 



P.ct. 



8.84 



3.51 

 3.39 



3.82 

 4.80 



Spec- 

 imen 

 of soil. 



Cm. 

 0- 15 



0- 30 

 0- 30 



0- 30 

 0- 30 



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