soil temp 1 .......... temp of soil 5" below ground
soil temp 2 .......... ground / grass temp
temp ................... 2 m above ground temp
soil moisture 1 ...... moisture of soil 5" below ground
centibar reading / soil condition
0-10 saturated soil
10-20 soil is adequately wet
30-60 usual range to irrigate
60-100 usual range to irrigate heavy clay soils
100-200 soil is becoming dangerously dry
wet leaf ................ used to detect the presence of surface moisture
range 0-15
et ........................ evapotranspiration
