Abstract
Centre-pivot irrigation systems frequently cause surface runoff and erosion problems. This is more evident in complex topographies and low infiltrability soils. To overcome these problems farmers have tried different tillage systems, attaining different results, depending on soil type and irrigation management. Field tests, using small plots, were carried out in a Mediterranean soil with three different tillage systems: no-till, basin tillage and conventional tillage, as a control practice. Conventional tillage showed the highest runoff values (30 % of collected water depth) with significant differences to no-till (15 %) and basin tillage (2 %). Maximum average values of sediment yields per irrigation event were lower for basin tillage (4.46 kg/ha) and no-till (9.59 kg/ha) compared to conventional tillage (23.45 kg/ha). The no-till system showed higher soil water content along all the irrigation season compared to the other two tillage systems. From a soil and water conservation point of view the basin tillage practice is the best option. But, from an economic point of view the no-till practice can be also a good option in these conditions.
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Claims 7
Claim · model-written summary
Conventional tillage had 30% runoff, versus 15% under no-till.
- Treatment
- no-tille0
- Outcome
- runoff valuese0
- Direction
- lowerinferrede0
- Value
- 15 %e0
- Qualifier
- 30 % of collected water depthe0
- Comparator
- Conventional tillagee0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conventional tillage showed the highest runoff values (30 % of collected water depth) with significant differences to no-till (15 %) and basin tillage (2 %)”
t0“maize”
Claim · model-written summary
Basin tillage had 2% runoff, versus 30% under conventional tillage.
- Treatment
- basin tillagee0
- Outcome
- runoff valuese0
- Direction
- lowerinferrede0
- Value
- 2 %e0
- Qualifier
- 30 % of collected water depthe0
- Comparator
- Conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Conventional tillage showed the highest runoff values (30 % of collected water depth) with significant differences to no-till (15 %) and basin tillage (2 %)”
t0“maize”
Claim · model-written summary
Basin tillage yielded 4.46 kg/ha sediment per irrigation event, below 23.45 kg/ha for conventional tillage.
- Treatment
- basin tillagee0
- Outcome
- sediment yields per irrigation evente0
- Direction
- lowere0
- Value
- 4.46 kg/hae0
- Qualifier
- 23.45 kg/hae0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sediment yields per irrigation event were lower for basin tillage (4.46 kg/ha) and no-till (9.59 kg/ha) compared to conventional tillage (23.45 kg/ha)”
t0“maize”
Claim · model-written summary
No-till yielded 9.59 kg/ha sediment per irrigation event, below 23.45 kg/ha for conventional tillage.
- Treatment
- no-tille0
- Outcome
- sediment yields per irrigation evente0
- Direction
- lowere0
- Value
- 9.59 kg/hae0
- Qualifier
- 23.45 kg/hae0
- Comparator
- conventional tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sediment yields per irrigation event were lower for basin tillage (4.46 kg/ha) and no-till (9.59 kg/ha) compared to conventional tillage (23.45 kg/ha)”
t0“maize”
Claim · model-written summary
No-till maintained higher soil water content throughout the irrigation season than the other systems.
- Treatment
- no-till systeme0
- Outcome
- soil water contente0
- Direction
- highere0
- Qualifier
- along all the irrigation seasone0
- Comparator
- the other two tillage systemse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The no-till system showed higher soil water content along all the irrigation season compared to the other two tillage systems”
t0“maize”
Claim · model-written summary
The authors consider basin tillage the best soil and water conservation option.
- Outcome
- basin tillage practice is the best optione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“From a soil and water conservation point of view the basin tillage practice is the best option”
t0“maize”
Claim · model-written summary
The authors consider no-till a good economic option under these conditions.
- Outcome
- no-till practice can be also a good optione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“from an economic point of view the no-till practice can be also a good option in these conditions”
t0“maize”
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