Abstract

Water is important for optimal vegetable production, not only for total yield but also for high-quality produce. For example, adequate water is needed to produce high yields of large pepper fruits with thick walls, desirable in the marketplace. Agriculture uses a considerable portion of the available fresh water on the globe and as the need for food grows with the growth in population, so will the demand for water. Some estimates are that, on average, about 70% of the global freshwater supplies are committed to agriculture. This number is nearly halved for the United States due to increased water-use efficiency related to farmer adoption of irrigation technologies like drip irrigation. Farmers are keenly aware of the current and future competition for available water and they are interested in adopting the most efficient irrigation systems available. The most common irrigation systems used for vegetable production in the United States are sprinkler, subirrigation, and drip irrigation. This chapter covers drip irrigation, especially in conjunction with plastic-mulched vegetable production systems.

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