MONTHLY ETO PENMAN-MONTEITH DATA

(File: untitled)

Country: cameroon Station: mora

Altitude: 374 m. Latitude: 11.05 °N Longitude: 14.18 °E

Month Min Temp Max Temp Humidity Wind Sun Rad ETo
°C °C % km/day hours MJ/m²/day mm/day

January 14.3 38.7 18 267 11.6 23.9 8.31

February 13.8 39.2 14 270 11.8 25.8 8.81
March 20.0 43.0 19 268 12.1 27.7 9.75
April 19.5 44.2 20 224 12.4 28.7 9.36
May 24.3 43.5 32 214 12.6 28.4 9.00
June 23.6 41.2 52 205 12.8 28.2 8.09
July 21.3 37.9 70 184 12.7 28.2 6.92
August 21.8 34.5 75 136 12.5 28.4 6.15
September 21.8 37.2 78 119 12.2 27.9 6.21
October 20.5 39.3 62 144 11.9 26.2 6.47
November 16.6 39.6 37 162 11.6 24.1 6.54
December 16.5 37.9 24 255 11.5 23.1 7.74

Average 19.5 39.7 42 204 12.1 26.7 7.78

MONTHLY RAIN DATA

(File: untitled)

Station:

Eff. rain method: Dependable rain (FAO / AGLW formula):

Peff = 0.6 * Pmon - 10 for Pmon <= 70 mm
Peff = 0.8 * Pmon - 24 for Pmon > 70 mm

Rain Eff rain

mm mm

January 0.0 0.0

February 0.0 0.0
March 0.0 0.0
April 1.0 0.0
May 11.6 0.0
June 54.4 22.6
July 154.3 99.4
August 26.6 6.0
September 27.6 6.5
October 26.6 6.0
November 27.6 6.5
December 29.6 7.8

Total 359.2 154.9

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 CLIMATE / ETO / RAIN CHART

150
140
Rain mm
130 Eff rain mm
120 Max Temp °C

110
100
90
80
70
60
50
40
30
20
10
0
1 2 3 4 5 6 7 8 9 10 11 12
Month

DRY CROP DATA

(File: C:\ProgramData\CROPWAT\data\crops\FAO\BANANA1.CRO)

Crop Name: BANANA 1st year Planting date: 01/06 Harvest: 26/04

Stage initial develop mid late total

Length (days) 90 165 45 30 330

Kc Values 0.50 --> 1.10 1.00
Rooting depth (m) 0.30 --> 0.90 0.90
Critical depletion 0.55 --> 0.45 0.45
Yield response f. 1.00 1.00 1.00 1.00 1.00
Cropheight (m) 3.00

SOIL DATA
(File: untitled)

Soil name: argilo-limoneux

General soil data:

Total available soil moisture (FC - WP) 150.0 mm/meter

Maximum rain infiltration rate 7 mm/day
Maximum rooting depth 150 centimeters
Initial soil moisture depletion (as % TA 65 %
Initial available soil moisture 52.5 mm/meter

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 CROPPING PATTERN DATA
(File: untitled)

Cropping pattern name: patter 1

Planting Harvest Area

No. Crop file Crop name date date %

1 ...\CROPWAT\data\cro BANANA 1st year 30/06 25/05 97

2 ...\CROPWAT\data\cro BANANA 1st year 30/06 25/05 1
3 ...\CROPWAT\data\cro BANANA 1st year 30/06 25/05 1
4 ...\CROPWAT\data\cro BANANA 1st year 30/06 25/05 1

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 CROP WATER REQUIREMENTS

ETo station: mora Crop: BANANA 1st year

Rain station: Planting date: 01/06

Month Decade Stage Kc ETc ETc Eff rain Irr. Req.

coeff mm/day mm/dec mm/dec mm/dec

Jun 1 Init 0.50 4.20 42.0 3.3 38.6

Jun 2 Init 0.50 4.05 40.5 5.0 35.5
Jun 3 Init 0.50 3.85 38.5 14.4 24.1
Jul 1 Init 0.50 3.65 36.5 30.0 6.6
Jul 2 Init 0.50 3.46 34.6 41.2 0.0
Jul 3 Init 0.50 3.33 36.6 28.1 8.5
Aug 1 Init 0.50 3.20 32.0 5.7 26.3
Aug 2 Init 0.50 3.07 30.7 0.0 30.7
Aug 3 Deve 0.50 3.09 34.0 0.4 33.6
Sep 1 Deve 0.53 3.30 33.0 2.1 30.8
Sep 2 Deve 0.58 3.58 35.8 2.2 33.6
Sep 3 Deve 0.62 3.91 39.1 2.1 37.0
Oct 1 Deve 0.66 4.24 42.4 2.1 40.4
Oct 2 Deve 0.71 4.58 45.8 2.0 43.9
Oct 3 Deve 0.75 4.90 53.9 2.1 51.9
Nov 1 Deve 0.80 5.17 51.7 2.1 49.5
Nov 2 Deve 0.84 5.44 54.4 2.2 52.2
Nov 3 Deve 0.89 6.11 61.1 2.3 58.8
Dec 1 Deve 0.93 6.84 68.4 2.7 65.7
Dec 2 Deve 0.98 7.56 75.6 3.0 72.6
Dec 3 Deve 1.02 8.10 89.2 2.0 87.2
Jan 1 Deve 1.07 8.67 86.7 0.1 86.6
Jan 2 Deve 1.11 9.24 92.4 0.0 92.4
Jan 3 Deve 1.16 9.81 107.9 0.0 107.9
Feb 1 Deve 1.20 10.40 104.0 0.0 104.0
Feb 2 Mid 1.22 10.78 107.8 0.0 107.8
Feb 3 Mid 1.22 11.16 89.3 0.0 89.3
Mar 1 Mid 1.22 11.63 116.3 0.0 116.3
Mar 2 Mid 1.22 12.05 120.5 0.0 120.5
Mar 3 Late 1.22 11.82 130.0 0.0 130.0
Apr 1 Late 1.19 11.26 112.6 0.0 112.6
Apr 2 Late 1.15 10.75 107.5 0.0 107.5
Apr 3 Late 1.12 10.32 61.9 0.0 61.9

2212.7 155.0 2064.3

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 CROP WATER REQUIREMENTS GRAPH
130.0

120.0
Irr. Req. mm/dec
110.0 ETc mm/dec
100.0

90.0

80.0

70.0

60.0

50.0

40.0

30.0

20.0

10.0

0.0
1 2 3 4 5 6 7 8 9 10 11 12
Month

CROP IRRIGATION SCHEDULE

ETo station: mora Crop: BANANA 1st year Planting date: 01/06
Rain station: Soil: argilo-limoneux Harvest date: 26/04

Yield red.: 0.0 %

Crop scheduling options

Timing: Irrigate at 80 % depletion
Application: Refill to 100 % of field capacity
Field eff. 60 %

Table format: Irrigation schedule

Date Day Stage Rain Ks Eta Depl Net IrrDeficit Loss Gr. Irr Flow
mm fract. % % mm mm mm mm l/s/ha

1 Jun 1 Init 0.0 0.78 78 72 32.7 0.0 0.0 54.6 6.32

9 Jun 9 Init 0.0 1.00 100 52 25.2 0.0 0.0 42.0 0.61
16 Jun 16 Init 0.0 1.00 100 46 23.0 0.0 0.0 38.4 0.64
22 Jun 22 Init 0.0 1.00 100 47 25.1 0.0 0.0 41.8 0.81
30 Jun 30 Init 0.0 1.00 100 45 25.1 0.0 0.0 41.9 0.61
11 Jul 41 Init 0.0 1.00 100 47 27.8 0.0 0.0 46.4 0.49
22 Jul 52 Init 0.0 1.00 100 45 28.8 0.0 0.0 48.0 0.51
2 Aug 63 Init 0.0 1.00 100 46 30.6 0.0 0.0 51.1 0.54
15 Aug 76 Init 0.0 1.00 100 47 33.6 0.0 0.0 56.0 0.50
28 Aug 89 Init 0.0 1.00 100 46 34.8 0.0 0.0 58.0 0.52
11 Sep 103 Dev 0.0 1.00 100 46 37.8 0.0 0.0 63.0 0.52
25 Sep 117 Dev 0.0 1.00 100 46 39.9 0.0 0.0 66.5 0.55
8 Oct 130 Dev 0.0 1.00 100 46 41.4 0.0 0.0 69.0 0.61
19 Oct 141 Dev 0.0 1.00 100 44 41.7 0.0 0.0 69.4 0.73

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29 Oct 151 Dev 0.0 1.00 100 41 40.4 0.0 0.0 67.4 0.78
8 Nov 161 Dev 0.0 1.00 100 42 42.7 0.0 0.0 71.2 0.82
18 Nov 171 Dev 0.0 1.00 100 43 45.3 0.0 0.0 75.6 0.87
26 Nov 179 Dev 0.0 1.00 100 40 43.4 0.0 0.0 72.3 1.05
4 Dec 187 Dev 0.0 1.00 100 42 46.5 0.0 0.0 77.6 1.12
12 Dec 195 Dev 0.0 1.00 100 45 50.9 0.0 0.0 84.8 1.23
19 Dec 202 Dev 0.0 1.00 100 41 47.2 0.0 0.0 78.7 1.30
26 Dec 209 Dev 0.0 1.00 100 44 52.4 0.0 0.0 87.4 1.44
1 Jan 215 Dev 0.0 1.00 100 41 49.2 0.0 0.0 82.0 1.58
7 Jan 221 Dev 0.1 1.00 100 42 51.9 0.0 0.0 86.5 1.67
13 Jan 227 Dev 0.0 1.00 100 43 53.7 0.0 0.0 89.5 1.73
19 Jan 233 Dev 0.0 1.00 100 44 55.4 0.0 0.0 92.4 1.78
24 Jan 238 Dev 0.0 1.00 100 38 48.5 0.0 0.0 80.8 1.87
29 Jan 243 Dev 0.0 1.00 100 38 49.1 0.0 0.0 81.8 1.89
3 Feb 248 Dev 0.0 1.00 100 38 50.8 0.0 0.0 84.7 1.96
8 Feb 253 Dev 0.0 1.00 100 39 52.0 0.0 0.0 86.7 2.01
13 Feb 258 Mid 0.0 1.00 100 39 53.1 0.0 0.0 88.6 2.05
18 Feb 263 Mid 0.0 1.00 100 40 53.9 0.0 0.0 89.8 2.08
23 Feb 268 Mid 0.0 1.00 100 41 55.0 0.0 0.0 91.7 2.12
28 Feb 273 Mid 0.0 1.00 100 41 55.8 0.0 0.0 93.0 2.15
5 Mar 278 Mid 0.0 1.00 100 43 58.1 0.0 0.0 96.9 2.24
10 Mar 283 Mid 0.0 1.00 100 43 58.1 0.0 0.0 96.9 2.24
15 Mar 288 Mid 0.0 1.00 100 45 60.3 0.0 0.0 100.4 2.32
20 Mar 293 Mid 0.0 1.00 100 45 60.3 0.0 0.0 100.4 2.32
25 Mar 298 Mid 0.0 1.00 100 44 59.0 0.0 0.0 98.4 2.28
30 Mar 303 End 0.0 1.00 100 44 59.0 0.0 0.0 98.4 2.28
4 Apr 308 End 0.0 1.00 100 42 56.9 0.0 0.0 94.8 2.19
9 Apr 313 End 0.0 1.00 100 42 56.3 0.0 0.0 93.9 2.17
14 Apr 318 End 0.0 1.00 100 40 54.2 0.0 0.0 90.4 2.09
19 Apr 323 End 0.0 1.00 100 40 53.7 0.0 0.0 89.5 2.07
24 Apr 328 End 0.0 1.00 100 38 51.5 0.0 0.0 85.8 1.99
26 Apr End End 0.0 1.00 0 8

Totals:

Total gross irrigation 3454.4 mm Total rainfall 347.5 mm

Total net irrigation 2072.7 mm Effective rainfall 289.0 mm
Total irrigation losses 0.0 mm Total rain loss 58.4 mm

Actual water use by crop 2201.5 mm Moist deficit at harvest 10.3 mm

Potential water use by crop 2202.4 mm Actual irrigation requirement 1913. mm

Efficiency irrigation schedule 100.0 % Efficiency rain 83.2 %

Deficiency irrigation schedule 0.0 %

Yield reductions:

Stagelabel A B C D Season

Reductions in ETc 0.3 0.0 0.0 0.0 0.0 %

Yield response factor 1.00 1.00 1.00 1.00 1.00
Yield reduction 0.3 0.0 0.0 0.0 0.0 %
Cumulative yield reduction 0.3 0.3 0.3 0.3 %

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 IRRIGATION SCHEDULING GRAPH
-20
-10
0 RAM
10 TAM
Depletion
20
30
Soil water retention in mm

40
50
60
70
80
90
100
110
120
130
140
0 20 40 60 80 100 120 140 160 180 200 220 240 260 280 300 320
Days after planting

SCHEME SUPPLY

ETo station: mora Cropping pattern: patter 1

Rain station:

Jan Feb Mar Apr May Jun Jul Aug Sep Oct

Precipitation deficit
1. BANANA 1st year 254.2 276.4 364.9 343.4 259.3 3.9 15.1 90.6 87.2 110.6 1
2. BANANA 1st year 254.2 276.4 364.9 343.4 259.3 3.9 15.1 90.6 87.2 110.6 1
3. BANANA 1st year 254.2 276.4 364.9 343.4 259.3 3.9 15.1 90.6 87.2 110.6 1
4. BANANA 1st year 254.2 276.4 364.9 343.4 259.3 3.9 15.1 90.6 87.2 110.6 1

Net scheme irr.req.

in mm/day 8.2 9.9 11.8 11.4 8.4 0.1 0.5 2.9 2.9 3.6
in mm/month 254.2 276.4 364.9 343.4 259.3 3.9 15.1 90.6 87.2 110.6 1
in l/s/h 0.95 1.14 1.36 1.32 0.97 0.01 0.06 0.34 0.34 0.41

Irrigated area 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 100.0 1
(% of total area)

Irr.req. for actual area 0.95 1.14 1.36 1.32 0.97 0.01 0.06 0.34 0.34 0.41
(l/s/h)

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