Abstract
Sweetpotato yield is adversely affected by poor soil fertility in Mozambique where access to inorganic fertilisers is lacking. The objective of the study was to evaluate the effectiveness of intercropping sweetpotato with groundnut and soybean at various phosphorus (P) fertilisation levels on the productivity of sweetpotato. A field experiment was conducted at Umbeluzi Research Station in southern Mozambique during the 2013/14, 2014/15 and 2015/16 growing seasons. The experimental design was a split plot with seven crop combinations and three P levels (0, 20 and 40 kg P ha−1). Phosphorus at 20 and 40 kg ha−1 produced best total storage yield, total biomass and commercial root yields, whereas P at 40 kg ha−1 favoured highest vegetative growth. Sweetpotato–groundnut intercropping produced the best commercial root yield and total biomass. Phosphorus applied at 40 kg ha−1, combined with sweetpotato and groundnut intercropping, produced the highest total and commercial storage root yield but these two parameters were not significantly different from sweetpotato–groundnut intercropping at 20 kg P ha−1. For farmers growing sweetpotato under similar climatic and soil conditions, we recommend intercropping with ground-nuts and additional application of 20 kg P ha−1 for farmers with fertiliser access.
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Claims 6
Claim · model-written summary
Phosphorus at 20 and 40 kg ha−1 gave the best total storage yield, total biomass and commercial root yields.
- Taxon
- sweetpotato
_Flower.jpg?width=60)
Ipomoea batatast0 - Treatment
- Phosphorus at 20 and 40 kg ha−1e0
- Outcome
- total storage yield, total biomass and commercial root yieldse0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“Phosphorus at 20 and 40 kg ha−1 produced best total storage yield, total biomass and commercial root yields”
t0“sweetpotato”
Claim · model-written summary
Phosphorus at 40 kg ha−1 favored the highest vegetative growth.
- Taxon
- sweetpotatoIpomoea batatast0
- Treatment
- P at 40 kg ha−1e0
- Outcome
- vegetative growthe0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“P at 40 kg ha−1 favoured highest vegetative growth”
t0“sweetpotato”
Claim · model-written summary
Sweetpotato–groundnut intercropping produced the best commercial root yield and total biomass.
- Taxon
- SweetpotatoIpomoea batatase0
- Treatment
- Sweetpotato–groundnut intercroppinge0
- Outcome
- commercial root yield and total biomasse0
- Direction
- beste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sweetpotato–groundnut intercropping produced the best commercial root yield and total biomass”
Claim · model-written summary
Combining 40 kg ha−1 phosphorus with sweetpotato–groundnut intercropping gave the highest total and commercial storage root yield.
- Taxon
- sweetpotatoIpomoea batatase0
- Treatment
- Phosphorus applied at 40 kg ha−1, combined with sweetpotato and groundnut intercroppinge0
- Outcome
- total and commercial storage root yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Phosphorus applied at 40 kg ha−1, combined with sweetpotato and groundnut intercropping, produced the highest total and commercial storage root yield”
Claim · model-written summary
Total and commercial storage root yield under 40 kg ha−1 phosphorus with groundnut intercropping did not differ significantly from 20 kg P ha−1 with groundnut intercropping.
- Taxon
- sweetpotatoIpomoea batatase0
- Outcome
- these two parameterse0
- Direction
- not significantly differente0
- Comparator
- sweetpotato–groundnut intercropping at 20 kg P ha−1e0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“these two parameters were not significantly different from sweetpotato–groundnut intercropping at 20 kg P ha−1”
Claim · model-written summary
The authors recommend groundnut intercropping and 20 kg P ha−1 for sweetpotato farmers with fertilizer access under similar conditions.
- Taxon
- sweetpotatoIpomoea batatase0
- Outcome
- intercropping with ground-nuts and additional application of 20 kg P ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For farmers growing sweetpotato under similar climatic and soil conditions, we recommend intercropping with ground-nuts and additional application of 20 kg P ha−1 for farmers with fertiliser access”
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