Abstract
This experiment was carried out at the Technical Center of Potato (C.T.P) situated in the low valley of Medjerda river at Tunisia, during two growing seasons (2006-2007) and (2008-2009). It aims at evaluating the effect of intercropping potato (Solanum tuberosum cv. Spunta) and sulla (Hedysarum coronarium L. cv. Bikra 21) grown under 1:1 intercropping row arrangement and sole cropping on water consumption and water use efficiency of one potato variety and one sulla variety. In addition, land equivalent ratio (LER) was determined to assess the efficiency of the intercropping system. Intercropping had no significant effect on the above parameters and tuber dry biomass production of potato and sulla. However, it increased the total dry biomass of the intercropping system. This increase occurred during the two cultivating seasons of 2007 and 2009 respectively from 12.5 to 14.8% compared to the potato in sole cropping. Intercropping has led to a similar reduction of water consumption (WC) of both crops. This reduction was 36 and 28% for 2007 and 2009 seasons respectively and for both crops. However, intercropping has led to an increase in the overall (WC) of the mixed system by 9.1 and 13.8% in 2007 and 2009 respectively. Water Use Efficiency (WUE) has been improved from 35.4 to 45.6% for potato in sole intercropping and from 25 to 37.5% for sulla intercropped. The values of total LER were higher than one, which indicates the superiority of intercropping system over the sole cropping system.
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Claims 9
Claim · model-written summary
Intercropping had no significant effect on the reported crop parameters and tuber dry biomass.
- Taxon
- potato and sulla
Solanum tuberosum
Sullae0 - Treatment
- Intercroppinge0
- Outcome
- tuber dry biomass productione0
- Direction
- no significant effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intercropping had no significant effect on the above parameters and tuber dry biomass production of potato and sulla”
Claim · model-written summary
Intercropping increased total dry biomass by 12.5 to 14.8% relative to sole potato cropping across the two seasons.
- Taxon
- Potato (Solanum tuberosum L.) and Sulla (Hedysarum coronarium L.)Solanum tuberosum
Sulla coronariat0 - Treatment
- intercropping systeme0
- Outcome
- total dry biomasse0
- Direction
- increasede0
- Value
- 12.5 to 14.8%e0
- Comparator
- potato in sole croppinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“it increased the total dry biomass of the intercropping system. This increase occurred during the two cultivating seasons of 2007 and 2009 respectively from 12.5 to 14.8% compared to the potato in sole cropping”
t0“Potato (Solanum tuberosum L.) and Sulla (Hedysarum coronarium L.)”
Claim · model-written summary
Intercropping reduced water consumption of both crops by 36% in 2007.
- Taxon
- Potato (Solanum tuberosum L.) and Sulla (Hedysarum coronarium L.)Solanum tuberosumSulla coronariat0
- Treatment
- Intercroppinge0
- Outcome
- water consumption (WC) of both cropse0
- Direction
- reductione0
- Value
- 36e0
- Qualifier
- 2007e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intercropping has led to a similar reduction of water consumption (WC) of both crops. This reduction was 36 and 28% for 2007 and 2009 seasons respectively and for both crops”
t0“Potato (Solanum tuberosum L.) and Sulla (Hedysarum coronarium L.)”
Claim · model-written summary
Intercropping reduced water consumption of both crops by 28% in 2009.
- Taxon
- Potato (Solanum tuberosum L.) and Sulla (Hedysarum coronarium L.)Solanum tuberosumSulla coronariat0
- Treatment
- Intercroppinge0
- Outcome
- water consumption (WC) of both cropse0
- Direction
- reductione0
- Value
- 28%e0
- Qualifier
- 2009e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intercropping has led to a similar reduction of water consumption (WC) of both crops. This reduction was 36 and 28% for 2007 and 2009 seasons respectively and for both crops”
t0“Potato (Solanum tuberosum L.) and Sulla (Hedysarum coronarium L.)”
Claim · model-written summary
Overall water consumption of the mixed system increased 9.1% in 2007.
- Taxon
- Potato (Solanum tuberosum L.) and Sulla (Hedysarum coronarium L.)Solanum tuberosumSulla coronariat0
- Treatment
- intercroppinge0
- Outcome
- overall (WC) of the mixed systeme0
- Direction
- increasee0
- Value
- 9.1e0
- Qualifier
- 2007e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping has led to an increase in the overall (WC) of the mixed system by 9.1 and 13.8% in 2007 and 2009 respectively”
t0“Potato (Solanum tuberosum L.) and Sulla (Hedysarum coronarium L.)”
Claim · model-written summary
Overall water consumption of the mixed system increased 13.8% in 2009.
- Taxon
- Potato (Solanum tuberosum L.) and Sulla (Hedysarum coronarium L.)Solanum tuberosumSulla coronariat0
- Treatment
- intercroppinge0
- Outcome
- overall (WC) of the mixed systeme0
- Direction
- increasee0
- Value
- 13.8%e0
- Qualifier
- 2009e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“intercropping has led to an increase in the overall (WC) of the mixed system by 9.1 and 13.8% in 2007 and 2009 respectively”
t0“Potato (Solanum tuberosum L.) and Sulla (Hedysarum coronarium L.)”
Claim · model-written summary
Potato water-use efficiency improved from 35.4 to 45.6% with intercropping.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- intercroppinge0
- Outcome
- Water Use Efficiency (WUE)e0
- Direction
- improvede0
- Value
- 35.4 to 45.6%e0
- Comparator
- solee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water Use Efficiency (WUE) has been improved from 35.4 to 45.6% for potato in sole intercropping”
Claim · model-written summary
Sulla water-use efficiency improved from 25 to 37.5% under intercropping.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Water Use Efficiency (WUE) has been improved from 35.4 to 45.6% for potato in sole intercropping and from 25 to 37.5% for sulla intercropped”
Claim · model-written summary
Total land equivalent ratio exceeded one, indicating an advantage for intercropping.
- Taxon
- Potato (Solanum tuberosum L.) and Sulla (Hedysarum coronarium L.)Solanum tuberosumSulla coronariat0
- Outcome
- total LERe0
- Direction
- higher thane0
- Value
- onee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The values of total LER were higher than one, which indicates the superiority of intercropping system over the sole cropping system”
t0“Potato (Solanum tuberosum L.) and Sulla (Hedysarum coronarium L.)”
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Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.