|
Crop: |
|
Earliest planting: |
|
Total area: |
|
Latest planting: |
|
Duration of crop growth phases |
Crop factors (Kc) | |
|
Initial stage: |
days |
Kc: |
|
Crop devt. Stage: |
days |
Kc: |
|
Mid season: |
days |
Kc: |
|
Late season: |
days |
Kc: |
|
Month |
Jan |
Feb |
Mar |
Apr |
May |
June |
July |
Aug |
Sept |
Oct |
Nov |
Dec |
|
ha |
|
|
|
|
|
|
|
|
|
|
|
|
|
ET0 (mm/day) |
|
|
|
|
|
|
|
|
|
|
|
|
|
Pe (mm/mon) |
|
|
|
|
|
|
|
|
|
|
|
|
|
Growth stages |
|
|
|
|
|
|
|
|
|
|
|
|
|
Kc per gr. st. |
|
|
|
|
|
|
|
|
|
|
|
|
|
Kc per month1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
ETcr mm/mon2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
INe mm/mon3 |
|
|
|
|
|
|
|
|
|
|
|
|
|
Growth stages |
|
|
|
|
|
|
|
|
|
|
|
|
|
Kc per gr. st. |
|
|
|
|
|
|
|
|
|
|
|
|
|
Kc per month1 |
|
|
|
|
|
|
|
|
|
|
|
|
|
ETcr mm/mon2 |
|
|
|
|
|
|
|
|
|
|
|
|
|
INl mm/mon3 |
|
|
|
|
|
|
|
|
|
|
|
|
|
INav mm/mon |
|
|
|
|
|
|
|
|
|
|
|
|
|
SINnet l/s4 |
|
|
|
|
|
|
|
|
|
|
|
|
1
average of Kc per month
2 ETcr (mm/mon) = ET0 (mm/day) x crop growing days per month x Kc (per month)
3 INe or INl (mm/mon) = ETcr (mm/mon) - Pe (mm/mon)
4 SINnet = (INav x Area) / 260
