CROP IRRIGATION SCHEDULE ETo station: POSTMASBURG Crop: MAIZE (Grain) Planting date: 1994/11/26 Rain station: POSTMASBURG Soil: Heavy (clay) Harvest date: 1995/03/30 Yield red.: 0.0 % Crop scheduling options Timing: Irrigate at 100 % depletion Application: Refill to 100 % of field capacity Field eff. 70 % Table format: Daily soil moisture balance Date,Day,Stage,Rain,Ks,Eta,Depl,Net Irr,Deficit,Loss,Gr. Irr,Flow ,,,mm,fract.,mm/day,%,mm,mm,mm,mm,l/s/ha 26 Nov,1,Init,0.0,1.00,2.0,3,0.0,2.0,0.0,0.0,0.00 27 Nov,2,Init,4.4,1.00,2.0,3,0.0,2.0,0.0,0.0,0.00 28 Nov,3,Init,0.0,1.00,2.0,6,0.0,4.1,0.0,0.0,0.00 29 Nov,4,Init,0.0,1.00,2.0,9,0.0,6.1,0.0,0.0,0.00 30 Nov,5,Init,0.0,1.00,2.0,11,0.0,8.1,0.0,0.0,0.00 1 Dec,6,Init,0.0,1.00,2.1,14,0.0,10.2,0.0,0.0,0.00 2 Dec,7,Init,0.0,1.00,2.1,16,0.0,12.3,0.0,0.0,0.00 3 Dec,8,Init,6.1,1.00,2.1,10,0.0,8.3,0.0,0.0,0.00 4 Dec,9,Init,0.0,1.00,2.1,13,0.0,10.4,0.0,0.0,0.00 5 Dec,10,Init,0.0,1.00,2.1,15,0.0,12.5,0.0,0.0,0.00 6 Dec,11,Init,0.0,1.00,2.1,17,0.0,14.6,0.0,0.0,0.00 7 Dec,12,Init,6.1,1.00,2.1,12,0.0,10.6,0.0,0.0,0.00 8 Dec,13,Init,0.0,1.00,2.1,14,0.0,12.7,0.0,0.0,0.00 9 Dec,14,Init,0.0,1.00,2.1,15,0.0,14.8,0.0,0.0,0.00 10 Dec,15,Init,0.0,1.00,2.1,17,0.0,16.8,0.0,0.0,0.00 11 Dec,16,Init,0.0,1.00,2.4,19,0.0,19.2,0.0,0.0,0.00 12 Dec,17,Init,0.0,1.00,2.4,21,0.0,21.6,0.0,0.0,0.00 13 Dec,18,Init,7.3,1.00,2.4,16,0.0,16.8,0.0,0.0,0.00 14 Dec,19,Init,0.0,1.00,2.4,18,0.0,19.2,0.0,0.0,0.00 15 Dec,20,Init,0.0,1.00,2.4,19,0.0,21.6,0.0,0.0,0.00 16 Dec,21,Dev,0.0,1.00,2.4,21,0.0,24.0,0.0,0.0,0.00 17 Dec,22,Dev,7.3,1.00,2.4,17,0.0,19.2,0.0,0.0,0.00 18 Dec,23,Dev,0.0,1.00,2.4,18,0.0,21.6,0.0,0.0,0.00 19 Dec,24,Dev,0.0,1.00,2.4,20,0.0,24.0,0.0,0.0,0.00 20 Dec,25,Dev,0.0,1.00,2.4,21,0.0,26.4,0.0,0.0,0.00 21 Dec,26,Dev,0.0,1.00,4.1,24,0.0,30.5,0.0,0.0,0.00 22 Dec,27,Dev,0.0,1.00,4.1,27,0.0,34.6,0.0,0.0,0.00 23 Dec,28,Dev,7.7,1.00,4.1,24,0.0,31.0,0.0,0.0,0.00 24 Dec,29,Dev,0.0,1.00,4.1,26,0.0,35.1,0.0,0.0,0.00 25 Dec,30,Dev,0.0,1.00,4.1,29,0.0,39.2,0.0,0.0,0.00 26 Dec,31,Dev,0.0,1.00,4.1,31,0.0,43.3,0.0,0.0,0.00 27 Dec,32,Dev,7.7,1.00,4.1,28,0.0,39.7,0.0,0.0,0.00 28 Dec,33,Dev,0.0,1.00,4.1,30,0.0,43.8,0.0,0.0,0.00 29 Dec,34,Dev,0.0,1.00,4.1,33,0.0,47.9,0.0,0.0,0.00 30 Dec,35,Dev,0.0,1.00,4.1,35,0.0,52.0,0.0,0.0,0.00 31 Dec,36,Dev,0.0,1.00,4.1,37,0.0,56.1,0.0,0.0,0.00 1 Jan,37,Dev,0.0,1.00,5.9,40,0.0,62.0,0.0,0.0,0.00 2 Jan,38,Dev,0.0,1.00,5.9,43,0.0,67.9,0.0,0.0,0.00 3 Jan,39,Dev,8.1,1.00,5.9,41,0.0,65.8,0.0,0.0,0.00 4 Jan,40,Dev,0.0,1.00,5.9,44,0.0,71.7,0.0,0.0,0.00 5 Jan,41,Dev,0.0,1.00,5.9,47,0.0,77.6,0.0,0.0,0.00 6 Jan,42,Dev,0.0,1.00,5.9,50,0.0,83.5,0.0,0.0,0.00 7 Jan,43,Dev,8.1,1.00,5.9,48,0.0,81.4,0.0,0.0,0.00 8 Jan,44,Dev,0.0,1.00,5.9,51,0.0,87.3,0.0,0.0,0.00 9 Jan,45,Dev,0.0,1.00,5.9,53,0.0,93.2,0.0,0.0,0.00 10 Jan,46,Dev,0.0,1.00,5.9,56,99.2,0.0,0.0,141.6,16.39 11 Jan,47,Dev,0.0,1.00,7.6,4,0.0,7.6,0.0,0.0,0.00 12 Jan,48,Dev,0.0,1.00,7.6,8,0.0,15.2,0.0,0.0,0.00 13 Jan,49,Dev,8.6,1.00,7.6,8,0.0,14.2,0.0,0.0,0.00 14 Jan,50,Dev,0.0,1.00,7.6,12,0.0,21.8,0.0,0.0,0.00 15 Jan,51,Dev,0.0,1.00,7.6,16,0.0,29.4,0.0,0.0,0.00 16 Jan,52,Dev,0.0,1.00,7.6,19,0.0,37.0,0.0,0.0,0.00 17 Jan,53,Dev,8.6,1.00,7.6,18,0.0,36.0,0.0,0.0,0.00 18 Jan,54,Dev,0.0,1.00,7.6,22,0.0,43.7,0.0,0.0,0.00 19 Jan,55,Dev,0.0,1.00,7.6,26,0.0,51.3,0.0,0.0,0.00 20 Jan,56,Mid,0.0,1.00,7.6,29,0.0,58.9,0.0,0.0,0.00 21 Jan,57,Mid,0.0,1.00,7.9,33,0.0,66.8,0.0,0.0,0.00 22 Jan,58,Mid,0.0,1.00,7.9,37,0.0,74.7,0.0,0.0,0.00 23 Jan,59,Mid,8.8,1.00,7.9,37,0.0,73.8,0.0,0.0,0.00 24 Jan,60,Mid,0.0,1.00,7.9,41,0.0,81.7,0.0,0.0,0.00 25 Jan,61,Mid,0.0,1.00,7.9,45,0.0,89.6,0.0,0.0,0.00 26 Jan,62,Mid,0.0,1.00,7.9,49,0.0,97.5,0.0,0.0,0.00 27 Jan,63,Mid,8.8,1.00,7.9,48,0.0,96.7,0.0,0.0,0.00 28 Jan,64,Mid,0.0,1.00,7.9,52,0.0,104.6,0.0,0.0,0.00 29 Jan,65,Mid,0.0,1.00,7.9,56,112.5,0.0,0.0,160.7,18.60 30 Jan,66,Mid,0.0,1.00,7.9,4,0.0,7.9,0.0,0.0,0.00 31 Jan,67,Mid,0.0,1.00,7.9,8,0.0,15.8,0.0,0.0,0.00 1 Feb,68,Mid,0.0,1.00,7.6,12,0.0,23.4,0.0,0.0,0.00 2 Feb,69,Mid,0.0,1.00,7.6,15,0.0,31.0,0.0,0.0,0.00 3 Feb,70,Mid,8.9,1.00,7.6,15,0.0,29.6,0.0,0.0,0.00 4 Feb,71,Mid,0.0,1.00,7.6,19,0.0,37.2,0.0,0.0,0.00 5 Feb,72,Mid,0.0,1.00,7.6,22,0.0,44.8,0.0,0.0,0.00 6 Feb,73,Mid,0.0,1.00,7.6,26,0.0,52.4,0.0,0.0,0.00 7 Feb,74,Mid,8.9,1.00,7.6,25,0.0,51.0,0.0,0.0,0.00 8 Feb,75,Mid,0.0,1.00,7.6,29,0.0,58.6,0.0,0.0,0.00 9 Feb,76,Mid,0.0,1.00,7.6,33,0.0,66.1,0.0,0.0,0.00 10 Feb,77,Mid,0.0,1.00,7.6,37,0.0,73.7,0.0,0.0,0.00 11 Feb,78,Mid,0.0,1.00,7.2,40,0.0,81.0,0.0,0.0,0.00 12 Feb,79,Mid,0.0,1.00,7.2,44,0.0,88.2,0.0,0.0,0.00 13 Feb,80,Mid,9.2,1.00,7.2,43,0.0,86.3,0.0,0.0,0.00 14 Feb,81,Mid,0.0,1.00,7.2,47,0.0,93.6,0.0,0.0,0.00 15 Feb,82,Mid,0.0,1.00,7.2,50,0.0,100.8,0.0,0.0,0.00 16 Feb,83,Mid,0.0,1.00,7.2,54,0.0,108.1,0.0,0.0,0.00 17 Feb,84,Mid,9.2,1.00,7.2,53,0.0,106.1,0.0,0.0,0.00 18 Feb,85,Mid,0.0,1.00,7.2,57,113.4,0.0,0.0,162.0,18.75 19 Feb,86,Mid,0.0,1.00,7.2,4,0.0,7.2,0.0,0.0,0.00 20 Feb,87,Mid,0.0,1.00,7.2,7,0.0,14.5,0.0,0.0,0.00 21 Feb,88,Mid,0.0,1.00,6.7,11,0.0,21.2,0.0,0.0,0.00 22 Feb,89,Mid,0.0,1.00,6.7,14,0.0,27.9,0.0,0.0,0.00 23 Feb,90,Mid,9.4,1.00,6.7,13,0.0,25.2,0.0,0.0,0.00 24 Feb,91,Mid,0.0,1.00,6.7,16,0.0,31.9,0.0,0.0,0.00 25 Feb,92,Mid,0.0,1.00,6.7,19,0.0,38.6,0.0,0.0,0.00 26 Feb,93,Mid,0.0,1.00,6.7,23,0.0,45.3,0.0,0.0,0.00 27 Feb,94,Mid,9.4,1.00,6.7,21,0.0,42.6,0.0,0.0,0.00 28 Feb,95,Mid,0.0,1.00,6.7,25,0.0,49.3,0.0,0.0,0.00 1 Mar,96,End,0.0,1.00,5.4,27,0.0,54.7,0.0,0.0,0.00 2 Mar,97,End,0.0,1.00,5.4,30,0.0,60.0,0.0,0.0,0.00 3 Mar,98,End,10.1,1.00,5.4,28,0.0,55.3,0.0,0.0,0.00 4 Mar,99,End,0.0,1.00,5.4,30,0.0,60.7,0.0,0.0,0.00 5 Mar,100,End,0.0,1.00,5.4,33,0.0,66.0,0.0,0.0,0.00 6 Mar,101,End,0.0,1.00,5.4,36,0.0,71.4,0.0,0.0,0.00 7 Mar,102,End,10.1,1.00,5.4,33,0.0,66.7,0.0,0.0,0.00 8 Mar,103,End,0.0,1.00,5.4,36,0.0,72.0,0.0,0.0,0.00 9 Mar,104,End,0.0,1.00,5.4,39,0.0,77.4,0.0,0.0,0.00 10 Mar,105,End,0.0,1.00,5.4,41,0.0,82.8,0.0,0.0,0.00 11 Mar,106,End,0.0,1.00,3.6,43,0.0,86.4,0.0,0.0,0.00 12 Mar,107,End,0.0,1.00,3.6,45,0.0,89.9,0.0,0.0,0.00 13 Mar,108,End,10.6,1.00,3.6,41,0.0,82.9,0.0,0.0,0.00 14 Mar,109,End,0.0,1.00,3.6,43,0.0,86.5,0.0,0.0,0.00 15 Mar,110,End,0.0,1.00,3.6,45,0.0,90.1,0.0,0.0,0.00 16 Mar,111,End,0.0,1.00,3.6,47,0.0,93.7,0.0,0.0,0.00 17 Mar,112,End,10.6,1.00,3.6,43,0.0,86.7,0.0,0.0,0.00 18 Mar,113,End,0.0,1.00,3.6,45,0.0,90.2,0.0,0.0,0.00 19 Mar,114,End,0.0,1.00,3.6,47,0.0,93.8,0.0,0.0,0.00 20 Mar,115,End,0.0,1.00,3.6,49,0.0,97.4,0.0,0.0,0.00 21 Mar,116,End,0.0,1.00,2.1,50,0.0,99.4,0.0,0.0,0.00 22 Mar,117,End,0.0,1.00,2.1,51,0.0,101.5,0.0,0.0,0.00 23 Mar,118,End,9.3,1.00,2.1,47,0.0,94.3,0.0,0.0,0.00 24 Mar,119,End,0.0,1.00,2.1,48,0.0,96.3,0.0,0.0,0.00 25 Mar,120,End,0.0,1.00,2.1,49,0.0,98.4,0.0,0.0,0.00 26 Mar,121,End,0.0,1.00,2.1,50,0.0,100.5,0.0,0.0,0.00 27 Mar,122,End,9.3,1.00,2.1,47,0.0,93.2,0.0,0.0,0.00 28 Mar,123,End,0.0,1.00,2.1,48,0.0,95.3,0.0,0.0,0.00 29 Mar,124,End,0.0,1.00,2.1,49,0.0,97.4,0.0,0.0,0.00 30 Mar,End,End,0.0,1.00,0.0,49,,,,, Totals: Total gross irrigation 464.3 mm Total rainfall 212.3 mm Total net irrigation 325.0 mm Effective rainfall 209.9 mm Total irrigation losses 0.0 mm Total rain loss 2.3 mm Actual water use by crop 632.3 mm Moist deficit at harvest 97.4 mm Potential water use by crop 632.3 mm Actual irrigation requirement 422.4 mm Efficiency irrigation schedule 100.0 % Efficiency rain 98.9 % Deficiency irrigation schedule 0.0 % Yield reductions: Stagelabel A B C D Season Reductions in ETc 0.0 0.0 0.0 0.0 0.0 % Yield response factor 0.40 0.40 1.30 0.50 1.25 Yield reduction 0.0 0.0 0.0 0.0 0.0 % Cumulative yield reduction 0.0 0.0 0.0 0.0 % Cropwat 8.0 Bèta 29/04/16 01:17:54 PM