1988
DOI: 10.1007/bf00181051
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Management and environmental constraints to rice yield within a village irrigation system ? A case study from Sri Lanka

Abstract: Management and environmental constraints to rice yield in a paddy tract (lowland rice field) was studied within a village irrigation system in Sri Lanka. The relative importance of water coverage during the critical period and soil fertility variables on the yield variations were analysed. For the upper part of the paddy tract having adequate water supply, environmental and management factors seemed to explain the large variations in yield. For the middle and lower parts, with a shortage of water, water covera… Show more

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Cited by 8 publications
(9 citation statements)
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“…(In addition to Sandell, 1988, see e.g., Karunanayake, 1983;Madduma Bandara, 1985;Tilakasiri, 1985;Dal6us, 1988;Dal6us et al, 1988;Palm, 1988;and Palm & Sandell, 1989.) According to survey figures in the largest (and somewhat more remote) of the villages, about one third of the farmers who owned paddy rice land (incl.…”
Section: Physical and Cultural Features Of The Case Study Areamentioning
confidence: 99%
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“…(In addition to Sandell, 1988, see e.g., Karunanayake, 1983;Madduma Bandara, 1985;Tilakasiri, 1985;Dal6us, 1988;Dal6us et al, 1988;Palm, 1988;and Palm & Sandell, 1989.) According to survey figures in the largest (and somewhat more remote) of the villages, about one third of the farmers who owned paddy rice land (incl.…”
Section: Physical and Cultural Features Of The Case Study Areamentioning
confidence: 99%
“…Since some sources of nutrients (like dung manure and green manure) were so rarely used, and at the same time considered as "good", and since the knowledge about these sources of nutrients was reasonably good (Sandell, 1988 :114-121), a natural question was: why were they used so infrequently? Some disappointment over the previous adoption, combined with an idealized picture of the past, was noted as well.…”
Section: Former Irrigation Headman (A) Was An "Early Adopter" Of the mentioning
confidence: 99%
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