Abstract
An experiment was carried out in 2003 to investigate the effect of intercropping on light interception, nutrient uptake and forage quality of cow pea. A randomized complete block design (RCB) with three replications was employed to compare the treatments, including cow pea sole crop (Cp), corn sole crop (C), alternate-row intercropping (M1), within-row intercropping (M2) and mixed intercropping (M3). The intercrop composition was based on replacement design, where one corn was replaced by three cow pea plants. The results indicated that PAR (photosyntheticaly active radiation) interception and nutrient uptake were improved by intercropping. Cow pea was more competitive than corn in absorbing divalent cations (Ca and Mg) for its high root cation exchange capacity. However, corn was more competitive than cow pea for phosphorus and potassium. Forage quality of cow pea in terms of crude protein was decreased in intercropping compared to its sole crop. It was related to reduction of biological nitrogen fixation induced by low PAR and phosphorus availability for cow pea in intercropping.
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Claims 6
Claim · model-written summary
Intercropping improved PAR interception.
- Taxon
- Cow Pea
Vigna unguiculatat0 - Treatment
- intercroppinge0
- Outcome
- PAR (photosyntheticaly active radiation) interceptione0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PAR (photosyntheticaly active radiation) interception and nutrient uptake were improved by intercropping”
t0“Cow Pea”
Claim · model-written summary
Intercropping improved nutrient uptake.
- Taxon
- Cow PeaVigna unguiculatat0
- Treatment
- intercroppinge0
- Outcome
- nutrient uptakee0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PAR (photosyntheticaly active radiation) interception and nutrient uptake were improved by intercropping”
t0“Cow Pea”
Claim · model-written summary
Cow pea was more competitive than corn for Ca and Mg absorption.
- Taxon
- Cow peaVigna unguiculatae0
- Organ / stage
- roote0
- Outcome
- absorbing divalent cations (Ca and Mg)e0
- Direction
- more competitivee0
- Comparator
- corne0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Cow pea was more competitive than corn in absorbing divalent cations (Ca and Mg) for its high root cation exchange capacity”
Claim · model-written summary
Corn was more competitive than cow pea for phosphorus and potassium.
- Taxon
- corn
Zea mays subsp. mayse0 - Outcome
- phosphorus and potassiume0
- Direction
- more competitivee0
- Comparator
- cow peae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“corn was more competitive than cow pea for phosphorus and potassium”
Claim · model-written summary
Intercropping decreased cow pea crude protein relative to sole cropping.
- Taxon
- cow peaVigna unguiculatae0
- Treatment
- intercroppinge0
- Outcome
- crude proteine0
- Direction
- decreasede0
- Comparator
- sole crope0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Forage quality of cow pea in terms of crude protein was decreased in intercropping compared to its sole crop”
Claim · model-written summary
The authors related lower crude protein to reduced biological nitrogen fixation under low PAR and phosphorus availability.
- Taxon
- cow peaVigna unguiculatae0
- Outcome
- reduction of biological nitrogen fixatione0
- Qualifier
- low PAR and phosphorus availabilitye0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“It was related to reduction of biological nitrogen fixation induced by low PAR and phosphorus availability for cow pea in intercropping”
The same questions in other papers
intercropping · physiology: photosynthesis · Vigna unguiculata (cowpea)Positive and negative results
1 in the opposite direction
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intercropping · nutrient: content · Vigna unguiculata (cowpea)Positive and negative results
5 papers in the same direction as this paper · 1 reporting no difference from an alternative
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See all 7 papers →intercropping · quality: protein · Vigna unguiculata (cowpea)Positive and negative results
4 papers in the same direction as this paper · 8 in the opposite direction
- positive
- positive
- positive
9 papers more in this group
See all 13 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.