Crop Yield Response to Deficit Irrigation 1999
DOI: 10.1007/978-94-011-4752-1_7
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Water balance and nitrate leaching in an irrigated maize crop in SW Spain

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Cited by 22 publications
(32 citation statements)
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“…The fertiliser inputs and leaching coefficients are close to the values found in other intensive Mediterranean irrigated lands (Guimera`& Candela, 1994;Guimera`et al, 1995;Moreno et al, 1996;Lo´pez Ga´lvez & Naredo, 1996). Although data on water amount and quality in watercourses reaching the lagoon are very scarce, the existing information has allowed a first estimation of the overall retention coefficient of N and P at watershed scale, since empirical values are not available.…”
Section: Dynamic Simulation Modelsupporting
confidence: 53%
“…The fertiliser inputs and leaching coefficients are close to the values found in other intensive Mediterranean irrigated lands (Guimera`& Candela, 1994;Guimera`et al, 1995;Moreno et al, 1996;Lo´pez Ga´lvez & Naredo, 1996). Although data on water amount and quality in watercourses reaching the lagoon are very scarce, the existing information has allowed a first estimation of the overall retention coefficient of N and P at watershed scale, since empirical values are not available.…”
Section: Dynamic Simulation Modelsupporting
confidence: 53%
“…Moreno et al (1996) conducted a study of water balance and nitrate leaching in an irrigated maize crop on a sandy loam in Spain. They found that nitrate leaching during the 3-year study period totaled 43 kg ha À1 under a low fertilization regime (170 kg N ha À1 per year) and 150 kg ha À1 under a high fertilization regime (500 kg N ha À1 per year).…”
Section: Nitrate Leachedmentioning
confidence: 99%
“…The respective amounts of NH 4 -N and NO 3 -N that leached below the root zone at 0.3 and 0.9 m depths in barrier and non-barrier treatments were determined using the following equation (Moreno et al, 1996):…”
Section: Leaching Of Ammonium and Nitratementioning
confidence: 99%
“…Due to the low irrigation efficiencies found in many surface irrigated districts of the Ebro Basin and elsewhere (Bouwer et al, 1990;Pang et al, 1997;Faci et al, 2000), water, salts and nitrates are lost below the crops root zone polluting the receiving water bodies. Thus, nitrate losses greater than 100 kg N/ha/ year have been measured in semiarid surface irrigated areas in Spain (Cartagena et al, 1995;Moreno et al, 1996) and USA (Devitt et al, 1976;Pratt, 1984). Likewise, salt losses greater than 10 Mg/ha/year have been measured in various surface irrigated Districts of the Ebro Basin (Basso, 1994;Isidoro, 1999).…”
Section: Introductionmentioning
confidence: 99%