treatment  lat     lon       day  bottle  PO4     NO2     NO3_NO2  NH4       SiO2    
HLLT       -76.50  173.47    6    7       1.164   0.0381  13.30   0.336     78.26   
HLLT       -76.50  173.47    6    8       1.206   0.0321  13.40   0.293     84.96   
HLLT       -76.50  173.47    6    9       1.185   0.0334  13.30   0.302     79.86   
HLLT       -76.50  173.47    6    10      1.174   0.0311  13.40   0.489     79.46   
HLLT       -76.50  173.47    6    11      1.196   0.0309  13.50   0.264     84.76   
HLLT       -76.50  173.47    6    12      1.185   0.0274  13.30   0.407     79.46