1 |
Al |
Alumum content in the soil in the 0-25 cm layer |
35 |
Mg |
Magnesium content in the soil in the 0-25 cm layer |
2 |
Sand1 |
Percentage of sand in the soil in the 0-25 cm layer |
36 |
MgK |
Mg/K ratio in the soil in the 0-25 cm layer |
3 |
Sand2 |
Percentage of sand in the soil in the 25-50 cm layer |
37 |
OM |
Organic matter content in the soil in the 0-25 cm layer |
4 |
Sand3 |
Percentage of sand in the soil in the 80-100 cm layer |
38 |
P |
Phosphorus content in the soil in the 0-25 cm layer |
5 |
Clay1 |
Percentage of clay in the soil in the 0-25 cm layer |
39 |
pH |
pH in the soil in the 0-25 cm layer |
6 |
Clay2 |
Percentage of clay in the soil in the 25-50 cm layer |
40 |
avg.ppt.I |
Average daily precipitation in phase I (sprouting) |
7 |
Clay3 |
Percentage of clay in the soil in the 80-100 cm layer |
41 |
avg.ppt.II |
Average daily precipitation in phase II (tillering) |
8 |
Ca |
Calcium content in the soil in the 0-25 cm layer |
42 |
avg.ppt.III |
Average daily precipitation in phase III (growth) |
9 |
CaK |
Ca/K ratio in the soil in the 0-25 cm layer |
43 |
avg.ppt.IV |
Average daily precipitation in phase IV (ripening) |
10 |
CaMg |
Ca/Mg ratio in the soil in the 0-25 cm layer |
44 |
accum.ppt.I |
Accumulated precipitation in phase I (sprouting) |
11 |
CycleD |
Cycle duration in days |
45 |
accum.ppt.II |
Accumulated precipitation in phase II (tillering) |
12 |
Cut |
Number of cuts |
46 |
accum.ppt.III |
Accumulated precipitation in phase III (growth) |
13 |
CEC |
CEC in the soil in the 0-25 cm layer |
47 |
accum.ppt.IV |
Accumulated precipitation in phase IV (ripening) |
14 |
Dens |
Soil density |
48 |
Sb |
Sum of bases in the soil in the 0-25 cm layer |
15 |
CutTime |
Cutting time (fall, winter, spring) |
49 |
avg.maxt.I |
Average maximum temperature in phase I (sprouting) |
16 |
Drought.I |
Higher number of consecutive days without precipitation in phase I (sprouting) |
50 |
avg.maxt.II |
Average maximum temperature in phase II (tillering) |
17 |
Drought.II |
Higher number of days without precipitation in phase II (tillering) |
51 |
avg.maxt.III |
Average maximum temperature in phase III (growth) |
18 |
Drought.III |
Higher number of consecutive days without precipitation in phase III (growth) |
52 |
avg.maxt.IV |
Average maximum temperature in phase IV (ripening) |
19 |
Drought.IV |
Higher number of consecutive days without precipitation in phase IV (repining) |
53 |
avg.avgt.I |
Average temperature in phase I (sprouting) |
20 |
sourceK |
Source of fertilization with potassium (fertilizer/vinasse) |
54 |
avg.avgt.II |
Average temperature in phase II (tillering) |
21 |
ADD.I |
Accumulated degree days in phase I (sprouting) |
55 |
avg.avgt.III |
Average temperature in phase III (growth) |
22 |
ADD.II |
Accumulated degree days in phase II (tillering) |
56 |
avg.avgt.IV |
Average temperature in phase IV (ripening) |
23 |
ADD.III |
Accumulated degree days in phase III (growth) |
57 |
avg.mint.I |
Average minimum temperature in phase I (sprouting) |
24 |
Frost |
Occurrence of frost |
58 |
avg.mint.II |
Average minimum temperature in phase II (tillering) |
25 |
GradText |
(Percentage clay 25-50 cm/ Percentage clay 0-25 cm) |
59 |
avg.mint.III |
Average minimum temperature in phase III (growth) |
26 |
HAl |
H+Al content in the soil in the 0-25 cm layer |
60 |
avg.mint.IV |
Average minimum temperature in phase IV (ripening) |
27 |
Kinput |
kg ha−1 of fertilization with potassium |
61 |
Cake |
Amount of filter cake applied |
28 |
Moinput |
kg ha−1 of fertilization with molybdenum |
62 |
V |
Percent of base saturation in the soil in the 0-25 cm layer |
29 |
Ninput |
kg ha−1 of fertilization with nitrogen |
63 |
Variety |
Variety cultivated |
30 |
Pinput |
kg ha−1 of fertilization with phosphorus |
64 |
DrySpell.I |
Number of periods longer than or equal to 10 days without rain in phase I (sprouting) |
31 |
K |
Potassium content in the soil in the 0-25 cm layer |
65 |
DrySpell.II |
Number of periods longer than or equal to 10 days without rain in phase II (tillering) |
32 |
KCaMg |
K/(Ca + Mg)½ ratio in the soil in the 0-25 cm layer |
66 |
DrySpell.III |
Number of periods longer than or equal to 10 days without rain in phase III (growth) |
33 |
KCEC |
K/CEC ratio in the soil in the 0-25 cm layer |
67 |
DrySpell.IV |
Number of periods longer than or equal to 10 days without rain in phase IV (ripening) |
34 |
M |
Soil saturation by aluminum (m%) in the 0-25 cm layer |
68 |
Vinasse |
Volume of vinasse applied |