Training manual no. 4
a manual prepared jointly
by
C. Brouwer
International Institute
for Land Reclamation and Improvement
and
K. Prins
consultant
M. Heibloem
FAO Land and Water Development Division
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© FAO 1989
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CHAPTER 2: THE INFLUENCE OF WATER SHORTAGES ON YIELDS
2.1 Which Crops are Sensitive to Water Shortages
2.2 Which Growth Stages are Sensitive to Water Shortages
CHAPTER 3: DETERMINATION OF THE IRRIGATION SCHEDULE FOR CROPS OTHER THAN RICE
3.1 Plant Observation Method
3.2 Estimation Method3.2.1 Estimating the Irrigation Schedule
3.2.2 Adjusting the Irrigation Schedule3.3.1 Application of the Simple Calculation Method
3.3.2 Adjusting the Simple Calculation Method for the Peak Period
3.3.3 Calculation Example Irrigation Scheduling3.4 Conversion of mm/day into litres/sec.ha
3.5 Adjusting the irrigation schedule to actual rainfall
CHAPTER 4: DETERMINATION OF THE IRRIGATION SCHEDULE FOR PADDY RICE
4.1 Introduction
4.2 Growing Paddy Rice
4.3 Rice Growth Stages
4.4 Irrigation water need of paddy rice
4.5 Irrigation scheduling of paddy rice
Annex I: Irrigation efficiencies
Annex II: Rainfall measurement*
Annex III: Datasheet: determination of irrigation water need of paddy rice