GENERALISED WHOLE-FARM STOCHASTIC DYNAMIC ...

More documents

Recommendations

Info

ACKNOWLEDGEMENTSThe research in connection with "Generalised whole-farm stochastic dynamic programmingmodel to optimise agricultural water use" was funded by the Water Research Commission(WRC) and conducted by the Department of Agricultural Economics, University of the FreeState.The reference group responsible for this project consisted of the following persons:Dr G.R BackebergDr S.R.D. FerrerMr B. GroveMr R.J. MyburghProf. L.K- OosthuizenMr J.H.L. PotgieterDrD.P TroskieProf. M.F. ViljoenWater Research Commission (Chairman)University of KwaZulu-NatalUniversity of the Free StateDepartment of Agriculture (Free State)University of the Free StateVaalharts Water User AssociationDepartment of Agriculture (Western Cape)University of the Free StateThe project team would like to express its gratitude and appreciation to a number of individualsand institutions that have co-operated to make this research possible:• The Water Research Commission for financing the project, the contribution of thereference group members as well as the guidance of the Chairman is acknowledgedwith thanks.• Mr Bennie Grove for his devotion to the project as well as his quantitative and qualitativecontribution.• Messrs Japie Momberg, Sakkie Fourie and Koos Potgieter of Vaalharts water for theirwillingness to share their knowledge about Vaalharts.• Mr Jan Badenhorst, previously of the Department Agriculture, Jan Kempdorp, for thedata of the crops that farmers are cultivating.• Dr Daan Louw for making his data available to us.• Mr Jaco Vermeulen of Senwes, Hartswater, for the crop enterprise budgets.• Mr Andre van Wyk of Senwes, Hartswater, for the centre pivot designs.
A cknowledgements* Mr Abraham Bekker of GWK, Douglas, for the additional crop enterprise budgets.* Mr Francois Jansen, irrigation scheduling consultant, for helping to obtain contactinformation of some of the farmers.* The farmers in the region and more specifically Messrs Paul Burger, Kobus Human,Albie Venter, Jan Theron, Frikkie Yeats, Josias Delport, Colin Viljoen, Alfonso Visser,Riaan Theron, Frank Siabbert and Charles Steyn for sharing their insights concerningthe mechanisation, imgation and general farming practices in the Vaalharts irrigationscheme.* Mrs Francia Neuhoff for assistance in compiling the report.* Mr Frederik Nel and Herbital Maluleke for the compilation of data sets.* Mr Pieter van Heerden for his assistance in calculating irrigation crop waterrequirements with SAPWAT.KLOPPER OOSTFHJIZENMARCH 2006in
Page 1 and 2: GENERALISED WHOLE-FARM STOCHASTICDY
Page 3: DISCLAIMERThis report has been revi
Page 7: Executive Summar\-the season (Berna
Page 10: Executive Summaryseveral farmers us
Page 13 and 14: Table of contents2.6 CONCLUSIONS 22
Page 15 and 16: LIST OF TABLESTABLE 3.1: UTILISATIO
Page 17 and 18: Lys van figureFIGURE E1:ENVELOPE OF
Page 19 and 20: Introductioncrops compete for water
Page 21 and 22: IntroductionChapter 2 gives an over
Page 23 and 24: Literature reviewYieldY = /(ET)y- .
Page 25: Literature reviewThe Lagrangian mut
Page 32 and 33: Literature review 15water use betwe
Page 34 and 35: Literature review 17White, 1969). A
Page 36 and 37: Literature review 19the explicit ti
Page 38 and 39: Literature review 21The variance of
Page 40 and 41: CHAPTERSTUDYAREA3.1 GENERAL DESCRIP
Page 42 and 43: Study Area 25250Jan Feb Mar Apr May
Page 44 and 45: Study Area 27users. More specifical
Page 46 and 47: Study Area 29which the user may dis
Page 48 and 49: Descriplion of the multi-period ris
Page 50 and 51: Description of (he multi-period ris
Page 52 and 53: Description of the multi-period ris
Page 54 and 55:
Description of the multi-period ris
Page 56 and 57:
Page 58 and 59:
Page 60 and 61:
Page 62 and 63:
Page 64 and 65:
Page 66 and 67:
Page 68 and 69:
Page 70 and 71:
Page 72 and 73:
Page 74 and 75:
Page 76 and 77:
Page 78 and 79:
Page 80 and 81:
Page 82 and 83:
Page 84 and 85:
Page 86 and 87:
Page 88 and 89:
Page 90 and 91:
Results and conclusions 735.2 RE-AL
Page 92 and 93:
Results and conclusions 755.3 RE-AL
Page 94 and 95:
Results and conclusions 11unrealist
Page 96 and 97:
RESEARCH IMPLICATIONSGeneralWhile S
Page 98 and 99:
Research implications 81• The imp
Page 100 and 101:
REFERENCESANNANDALE, J.G., BENADE,
Page 102 and 103:
References 85DE JUAN, J.A, TARJUELO
Page 104 and 105:
References 87MARE, H.G. (1995). Mar
Page 106 and 107:
References 89Orange-Riet water user
Page 108 and 109:
Appendix A 91pivotlpivotlpivotlpivo
Page 110 and 111:
Appendix A 93flood2flood2flood2floo
Page 112 and 113:
Appendix A 95labour.labour,labour.l
Page 114 and 115:
Appendix A 97floodlfloodlflood2floo
Page 116 and 117:
Appendix A 99pivot.ml.cropB.y3pivot
Page 118 and 119:
Appendix A 101flood2flood2flood2.pi
Page 120 and 121:
Appendix A 103CanalNetwork. gins04/
Page 122 and 123:
Appendix A 105yipivot1.pivot.ml.cro
Page 124 and 125:
Appendix A 107farm2.floodlfarm2.flo
Page 126 and 127:
Appendix B 109C(I,J) Cholesky decom
Page 128 and 129:
Appendix B 111DISPLAY VC;* Whistle
Page 130 and 131:
Appendix B 113CUD(rnd,I,t)LE ((DATA
Page 132 and 133:
APPENDIXENTERPRISE BUDGETWHEAT CENT
Page 134 and 135:
Appendix C 118MAIZE: CENTRE PIVOTIt
Page 136 and 137:
Appendix C120GROUNDNUTS CENTRE PIVO
Page 138 and 139:
Appendix C 122LUCERNE: FLOOD 2003It
Page 140 and 141:
Appendix C 124COTTON: FLOOD 2003Ite
Page 142 and 143:
Appendix D 1265cl_5c3_off5c45c6offo
Page 144 and 145:
Appendix D 128sec_to_ter(con,conl)
Page 146 and 147:
Appendix D 130TABLEpg_to_p(pg,p) li
Page 148 and 149:
Appendix D132wt25wt2 6wt27wt28wt2 9
Page 150 and 151:
Appendix D 134pivot 10/TABLEprices(
Page 152 and 153:
APPENDIXPRODUCTION FUNCTION ENVELOP
Page 154 and 155:
Appendix E 1388.5»• •* •»
Page 156 and 157:
Appendix E 1403.63.2* * * * ••
show all

GENERALISED WHOLE-FARM STOCHASTIC DYNAMIC ...

Create successful ePaper yourself

Delete template?

Save as template?