Soils, Crops and Fertilizer Use: A Field Manual for Development Workers (Peace Corps, 1986, 338 p.)
Chapter 5: Watering vegetables: When? How Often? How Much?
It pays to use water wisely
Some common watering mistakes and their effects
Factors influencing plant water needs
Ok, so get to the point! how much water do plants need and how often?
Some methods for improving water use efficiency