Abstract
TWO FIELD experiments were carried out at Mallawi Agric. Res. St. (Middle Egypt) during the two summer seasons of 2008 and 2009. The objectives of this study were to investigate the effect of preceding crops and intercropping maize with cowpea on productivity and associated weeds. A randomized complete block design (RCBD) in a split plot arrangement with three replications was used in both seasons. The main plots were devoted to the three preceding winter crops (wheat, faba bean and berseem) while sub plots were allocated for three solid planting namely solid maize, solid cowpea cut two months (forage) and solid cowpea left without cutting (seeds), as well as two intercropping treatments namely: maize + cowpea cut after two months (forage) and maize + cowpea left without cutting (seeds). The results showed that maize preceded by faba bean was superior in most studied characters while the lowest values were observed when it grew after wheat. The weed density in maize sequenced by legume crops was less than this grown in maize sequenced by wheat.The yield and yield components of maize were decreased under intercropping conditions. The lowest values were observed when cowpea (forage) was preceded by wheat. The reduction in maize grain yield when intercropping with cowpea was 4.7% (combination of the two seasons). The reduction in weed weight was 72.8% when intercropped cowpea was forage and 72.0% when cowpea was seeds compared with solid planting. The forage and seeds yield of cowpea were more decreased under intercropping condition. The reduction in forage and seeds yield were 52.2 and 74.3% compared with solid planting, respectively. The highest values of land equivalent ratio (LER) (1.46), area time equivalent ratio (ATAR) (1.19) and monetary advantage index (MAI) (1874.66) were observed when sequenced by berseem and intercropped cowpea with cut after two months.
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Claims 11
Claim · model-written summary
Maize preceded by faba bean was superior in most studied characters, and lowest after wheat.
- Treatment
- maize preceded by faba beane1
- Outcome
- most studied characterse1
- Direction
- superiore1
- Comparator
- after wheate1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping Maize with Cowpea”
e1“The results showed that maize preceded by faba bean was superior in most studied characters while the lowest values were observed when it grew after wheat”
Claim · model-written summary
Weed density in maize sequenced by legume crops was lower than in maize sequenced by wheat.
- Treatment
- maize sequenced by legume cropse2
- Interactor
- weede2weed
- Outcome
- weed densitye2
- Direction
- lesse2
- Comparator
- maize sequenced by wheate2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping Maize with Cowpea”
e2“The weed density in maize sequenced by legume crops was less than this grown in maize sequenced by wheat”
Claim · model-written summary
Yield and yield components of maize decreased under intercropping, with the lowest values when cowpea was preceded by wheat.
- Treatment
- intercropping conditionse3
- Outcome
- yield and yield components of maizee3
- Direction
- decreasede3
- Qualifier
- The lowest values were observed when cowpea (forage) was preceded by wheate4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping Maize with Cowpea”
e3“The yield and yield components of maize were decreased under intercropping conditions”
e4“The lowest values were observed when cowpea (forage) was preceded by wheat”
Claim · model-written summary
Maize grain yield was reduced by 4.7 percent when intercropped with cowpea.
- Treatment
- intercropping with cowpeae5
- Outcome
- maize grain yielde5
- Direction
- reductione5
- Value
- 4.7%e5
- Qualifier
- combination of the two seasonse5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping Maize with Cowpea”
e5“The reduction in maize grain yield when intercropping with cowpea was 4.7% (combination of the two seasons)”
Claim · model-written summary
Intercropping with forage cowpea reduced weed weight by 72.8 percent compared with solid planting.
- Taxon
- cowpea
Vigna unguiculatae6 - Treatment
- intercropped cowpea was foragee6
- Interactor
- weede6weed
- Outcome
- weed weighte6
- Direction
- reductione6
- Value
- 72.8%e6
- Comparator
- solid plantinge6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping Maize with Cowpea”
e6“The reduction in weed weight was 72.8% when intercropped cowpea was forage and 72.0% when cowpea was seeds compared with solid planting”
Claim · model-written summary
Intercropping with seed cowpea reduced weed weight by 72.0 percent compared with solid planting.
- Taxon
- cowpeaVigna unguiculatae6
- Treatment
- cowpea was seedse6
- Interactor
- weede6weed
- Outcome
- weed weighte6
- Direction
- reductione6
- Value
- 72.0%e6
- Comparator
- solid plantinge6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping Maize with Cowpea”
e6“The reduction in weed weight was 72.8% when intercropped cowpea was forage and 72.0% when cowpea was seeds compared with solid planting”
Claim · model-written summary
Forage yield of cowpea decreased more under intercropping, by 52.2 percent compared with solid planting.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- under intercropping conditione1
- Outcome
- foragee2
- Direction
- more decreasede1
- Value
- 52.2e2
- Comparator
- solid plantinge2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping Maize with Cowpea”
e1“The forage and seeds yield of cowpea were more decreased under intercropping condition”
e2“The reduction in forage and seeds yield were 52.2 and 74.3% compared with solid planting, respectively”
Claim · model-written summary
Seed yield of cowpea decreased more under intercropping, by 74.3 percent compared with solid planting.
- Taxon
- cowpeaVigna unguiculatae1
- Treatment
- under intercropping conditione1
- Outcome
- seeds yielde2
- Direction
- more decreasede1
- Value
- 74.3%e2
- Comparator
- solid plantinge2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping Maize with Cowpea”
e1“The forage and seeds yield of cowpea were more decreased under intercropping condition”
e2“The reduction in forage and seeds yield were 52.2 and 74.3% compared with solid planting, respectively”
Claim · model-written summary
Maize sequenced by berseem with intercropped cowpea cut after two months gave the highest land equivalent ratio, 1.46.
- Treatment
- sequenced by berseem and intercropped cowpea with cut after two monthse1
- Outcome
- land equivalent ratio (LER)e1
- Direction
- higheste1
- Value
- 1.46e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping Maize with Cowpea”
e1“The highest values of land equivalent ratio (LER) (1.46), area time equivalent ratio (ATAR) (1.19) and monetary advantage index (MAI) (1874.66) were observed when sequenced by berseem and intercropped cowpea with cut after two months”
Claim · model-written summary
Maize sequenced by berseem with intercropped cowpea cut after two months gave the highest area time equivalent ratio, 1.19.
- Treatment
- sequenced by berseem and intercropped cowpea with cut after two monthse1
- Outcome
- area time equivalent ratio (ATAR)e1
- Direction
- higheste1
- Value
- 1.19e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping Maize with Cowpea”
e1“The highest values of land equivalent ratio (LER) (1.46), area time equivalent ratio (ATAR) (1.19) and monetary advantage index (MAI) (1874.66) were observed when sequenced by berseem and intercropped cowpea with cut after two months”
Claim · model-written summary
Maize sequenced by berseem with intercropped cowpea cut after two months gave the highest monetary advantage index, 1874.66.
- Treatment
- sequenced by berseem and intercropped cowpea with cut after two monthse1
- Outcome
- monetary advantage index (MAI)e1
- Direction
- higheste1
- Value
- 1874.66e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Intercropping Maize with Cowpea”
e1“The highest values of land equivalent ratio (LER) (1.46), area time equivalent ratio (ATAR) (1.19) and monetary advantage index (MAI) (1874.66) were observed when sequenced by berseem and intercropped cowpea with cut after two months”
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See all 8 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.