Abstract
A field experiment was carried out during 2009/2010 and 2010/2011 seasons at Hada Al-Sham experimental Farm of King A/Aziz University in Jeddah, Saudi Arabia. The objective was to evaluate the effect of some chemical fertilizers on productivity and nutritive value ofSorghum Sudanense Var. Panar intercropped with Cowpea (Vigna unguiculata L. Walp) in an adverse condition of soil and irrigation water. The chemical fertilizers applied were 50 kg/ha of urea (46%N), 50 kg/ha of triple superphosphate (46% P), 50 kg/ha of KNO3, 50 kg/ha of NPK (20:20:40) and a control for check. Sudan grass and Cowpea were sown as sole crops and as a mixture. Treatments were laid out in a split plot design with the fertilizer treatments in the main plots and the intercropping treatments in the subplots. Parameters measured were plant height and nutritive value for the Sudan grass, fresh and dry yields and the land equivalent ratio (LER). The chemical fertilizers had no significant (P ≤ 0.05) effect on productivity but significantly improved forage quality. Intercropping of Sudan grass and Cowpea significantly (P ≤ 0.05) increased forage productivity and improved forage quality and land equivalent ratio (LER). Cowpea was not a good competitor as it disappeared following the first cut in the first season. Key words: Chemical fertilization, intercropping, cowpea, sorghum forage, Sudan grass, salinity, land equivalent ratio (LER)
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Claims 5
Claim · model-written summary
Chemical fertilizers had no significant effect on Sudan grass forage productivity compared with a control
- Taxon
- Sudan grass
Sorghum ×drummondiie4 - Treatment
- chemical fertilizerse1
- Outcome
- productivitye2
- Direction
- no significante2
- Comparator
- a controle1
- Setting
- Hada Al-Sham experimental Farm of King A/Aziz University in Jeddah, Saudi Arabiae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The chemical fertilizers applied were 50 kg/ha of urea (46%N), 50 kg/ha of triple superphosphate (46% P), 50 kg/ha of KNO3, 50 kg/ha of NPK (20:20:40) and a control for check”
e2“The chemical fertilizers had no significant (P ≤ 0.05) effect on productivity but significantly improved forage quality”
e4“Sudan grass and Cowpea were sown as sole crops and as a mixture”
e6“A field experiment was carried out during 2009/2010 and 2010/2011 seasons at Hada Al-Sham experimental Farm of King A/Aziz University in Jeddah, Saudi Arabia”
Claim · model-written summary
Chemical fertilizers significantly improved Sudan grass forage quality compared with a control
- Taxon
- Sudan grassSorghum ×drummondiie4
- Treatment
- chemical fertilizerse1
- Outcome
- forage qualitye2
- Direction
- significantly improvede2
- Comparator
- a controle1
- Setting
- Hada Al-Sham experimental Farm of King A/Aziz University in Jeddah, Saudi Arabiae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The chemical fertilizers applied were 50 kg/ha of urea (46%N), 50 kg/ha of triple superphosphate (46% P), 50 kg/ha of KNO3, 50 kg/ha of NPK (20:20:40) and a control for check”
e2“The chemical fertilizers had no significant (P ≤ 0.05) effect on productivity but significantly improved forage quality”
e4“Sudan grass and Cowpea were sown as sole crops and as a mixture”
e6“A field experiment was carried out during 2009/2010 and 2010/2011 seasons at Hada Al-Sham experimental Farm of King A/Aziz University in Jeddah, Saudi Arabia”
Claim · model-written summary
Intercropping Sudan grass with cowpea significantly increased forage productivity compared with sole crops
- Taxon
- Sudan grassSorghum ×drummondiie4
- Treatment
- Intercroppinge3
- Interactor
- Cowpea
Vigna unguiculatae4other - Outcome
- forage productivitye3
- Direction
- increasede3
- Comparator
- sole cropse4
- Setting
- Hada Al-Sham experimental Farm of King A/Aziz University in Jeddah, Saudi Arabiae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Intercropping of Sudan grass and Cowpea significantly (P ≤ 0.05) increased forage productivity and improved forage quality and land equivalent ratio (LER)”
e4“Sudan grass and Cowpea were sown as sole crops and as a mixture”
e6“A field experiment was carried out during 2009/2010 and 2010/2011 seasons at Hada Al-Sham experimental Farm of King A/Aziz University in Jeddah, Saudi Arabia”
Claim · model-written summary
Intercropping Sudan grass with cowpea improved forage quality and land equivalent ratio compared with sole crops
- Taxon
- Sudan grassSorghum ×drummondiie4
- Treatment
- Intercroppinge3
- Interactor
- CowpeaVigna unguiculatae4other
- Outcome
- forage quality and land equivalent ratio (LER)e3
- Direction
- improvede3
- Comparator
- sole cropse4
- Setting
- Hada Al-Sham experimental Farm of King A/Aziz University in Jeddah, Saudi Arabiae6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Intercropping of Sudan grass and Cowpea significantly (P ≤ 0.05) increased forage productivity and improved forage quality and land equivalent ratio (LER)”
e4“Sudan grass and Cowpea were sown as sole crops and as a mixture”
e6“A field experiment was carried out during 2009/2010 and 2010/2011 seasons at Hada Al-Sham experimental Farm of King A/Aziz University in Jeddah, Saudi Arabia”
Claim · model-written summary
Cowpea was not a good competitor in the intercrop and disappeared after the first cut in the first season
- Taxon
- CowpeaVigna unguiculatae5
- Outcome
- competitore5
- Qualifier
- disappeared following the first cut in the first seasone5
- Setting
- Hada Al-Sham experimental Farm of King A/Aziz University in Jeddah, Saudi Arabiae6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Cowpea was not a good competitor as it disappeared following the first cut in the first season”
e6“A field experiment was carried out during 2009/2010 and 2010/2011 seasons at Hada Al-Sham experimental Farm of King A/Aziz University in Jeddah, Saudi Arabia”
The same questions in other papers
fertilization · quality: grain · Sorghum x drummondii (Sudan grass)Positive and negative results
3 papers in the same direction as this paper · 2 in the opposite direction
- negative
- no effect
- positive
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See all 6 papers →fertilization · yield · Sorghum x drummondii (Sudan grass)Positive and negative results
1 paper in the same direction as this paper · 29 in the opposite direction
- positive
- positive
- positive
27 papers more in this group
See all 31 papers →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.