Abstract
The experiment was conducted at the Hill Agricultural Research Station, Khagrachari during two winter seasons of 2010-11 and 2011-12 to find out suitable planting system of the component crops for increasing productivity and profitibility for hill farmers of Bangladesh. Three intercrop combinations viz., (i) maize paired row + 2 rows sweet potato, (ii) maize normal row +1 row sweet potato and (iii) sweet potato normal row + 1 row maize were evaluated against their respective sole crops. In all combinations, light availability was more at early growth stage and reduced gradually with the advancement of canopy development of maize. Light availability was minimum at 100 days after emergence and thereafter slightly increased in three intercrop combinations. Among intercrop combinations, light availability to sweet potato canopy was more in maize paired row + 2 rows sweet potato combination through out the crop period which enhance tuber formation, tuber bulging and tuber yield. Contrary, sweet potato vines provide a mulch cover for maize which preserve soil moisture and reduce weed infestation producing higher yield and yield components of maize. Maize yield (cob yield: 19.82 t ha-1, grain yield: 8.98 t ha-1), tuber yield of sweet potato (17.11 t ha-1) and maize equivalent yield (cob equivalent yield: 42.63 t ha-1, grain equivalent yield: 15.82 t ha-1) were the highest in maize paired row + 2 rows sweet potato combination. Similarly, the highest gross return (for cob: Tk. 1,27,890 ha-1, for grain: Tk. 1,58,200 ha-1), gross margin (for cob: Tk. 87,890 ha-1, for grain: Tk.1,08,200 ha-1) and benefit cost ratio (for cob: 3.20, for grain: 3.16) were also obtained from the same combination. The results revealed that maize paired row + 2 rows sweet DOI: http://dx.doi.org/10.3329/sja.v12i2.21922 SAARC J. Agri., 12(2): 101-111 (2014)
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 16
Claim · model-written summary
Light availability declined as maize canopy developed and was lowest at 100 days after emergence, then slightly increased.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“light availability was more at early growth stage and reduced gradually with the advancement of canopy development of maize. Light availability was minimum at 100 days after emergence and thereafter slightly increased in three intercrop combinations”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
The paired maize rows with two sweet potato rows gave the sweet potato canopy more light throughout the crop period.
- Taxon
- sweet potato
_Flower.jpg?width=60)
Ipomoea batatase0 - Treatment
- maize paired row + 2 rows sweet potatoe0
- Outcome
- light availability to sweet potato canopye0
- Direction
- moree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Flower.jpg?width=500)
Verbatim
e0“light availability to sweet potato canopy was more in maize paired row + 2 rows sweet potato combination through out the crop period”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
The increased light in the paired-row intercrop enhanced sweet potato tuber formation, bulging and yield.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- maize paired row + 2 rows sweet potatoe0
- Outcome
- tuber formation, tuber bulging and tuber yielde0
- Direction
- enhancee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maize paired row + 2 rows sweet potato combination through out the crop period which enhance tuber formation, tuber bulging and tuber yield”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
Sweet potato vines provided mulch cover that preserved soil moisture and reduced weed infestation.
Not reportedInteractor
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sweet potato vines provide a mulch cover for maize which preserve soil moisture and reduce weed infestation”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
The sweet potato mulch was associated with higher maize yield and yield components.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sweet potato vines provide a mulch cover for maize which preserve soil moisture and reduce weed infestation producing higher yield and yield components of maize”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
Paired-row maize with two sweet potato rows had the highest maize cob yield (19.82 t ha-1).
- Treatment
- maize paired row + 2 rows sweet potatoe0
- Outcome
- cob yielde0
- Direction
- higheste0
- Value
- 19.82 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maize yield (cob yield: 19.82 t ha-1, grain yield: 8.98 t ha-1), tuber yield of sweet potato (17.11 t ha-1) and maize equivalent yield (cob equivalent yield: 42.63 t ha-1, grain equivalent yield: 15.82 t ha-1) were the highest in maize paired row + 2 rows sweet potato combination”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
Paired-row maize with two sweet potato rows had the highest maize grain yield (8.98 t ha-1).
- Treatment
- maize paired row + 2 rows sweet potatoe0
- Outcome
- grain yielde0
- Direction
- higheste0
- Value
- 8.98 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Maize yield (cob yield: 19.82 t ha-1, grain yield: 8.98 t ha-1), tuber yield of sweet potato (17.11 t ha-1) and maize equivalent yield (cob equivalent yield: 42.63 t ha-1, grain equivalent yield: 15.82 t ha-1) were the highest in maize paired row + 2 rows sweet potato combination”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
Sweet potato tuber yield was highest in the paired-row combination at 17.11 t ha-1.
- Taxon
- sweet potatoIpomoea batatase0
- Treatment
- maize paired row + 2 rows sweet potatoe0
- Outcome
- tuber yield of sweet potatoe0
- Direction
- higheste0
- Value
- 17.11 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tuber yield of sweet potato (17.11 t ha-1) and maize equivalent yield (cob equivalent yield: 42.63 t ha-1, grain equivalent yield: 15.82 t ha-1) were the highest in maize paired row + 2 rows sweet potato combination”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
Maize cob equivalent yield was highest in the paired-row combination at 42.63 t ha-1.
- Treatment
- maize paired row + 2 rows sweet potatoe0
- Outcome
- cob equivalent yielde0
- Direction
- higheste0
- Value
- 42.63 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maize equivalent yield (cob equivalent yield: 42.63 t ha-1, grain equivalent yield: 15.82 t ha-1) were the highest in maize paired row + 2 rows sweet potato combination”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
Maize grain equivalent yield was highest in the paired-row combination at 15.82 t ha-1.
- Treatment
- maize paired row + 2 rows sweet potatoe0
- Outcome
- grain equivalent yielde0
- Direction
- higheste0
- Value
- 15.82 t ha-1e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maize equivalent yield (cob equivalent yield: 42.63 t ha-1, grain equivalent yield: 15.82 t ha-1) were the highest in maize paired row + 2 rows sweet potato combination”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
The paired-row intercrop had the highest gross return for cob at Tk. 1,27,890 ha-1.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest gross return (for cob: Tk. 1,27,890 ha-1, for grain: Tk. 1,58,200 ha-1), gross margin (for cob: Tk. 87,890 ha-1, for grain: Tk.1,08,200 ha-1) and benefit cost ratio (for cob: 3.20, for grain: 3.16) were also obtained from the same combination”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
The paired-row intercrop had the highest gross return for grain at Tk. 1,58,200 ha-1.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest gross return (for cob: Tk. 1,27,890 ha-1, for grain: Tk. 1,58,200 ha-1), gross margin (for cob: Tk. 87,890 ha-1, for grain: Tk.1,08,200 ha-1) and benefit cost ratio (for cob: 3.20, for grain: 3.16) were also obtained from the same combination”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
The paired-row intercrop had the highest gross margin for cob at Tk. 87,890 ha-1.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest gross return (for cob: Tk. 1,27,890 ha-1, for grain: Tk. 1,58,200 ha-1), gross margin (for cob: Tk. 87,890 ha-1, for grain: Tk.1,08,200 ha-1) and benefit cost ratio (for cob: 3.20, for grain: 3.16) were also obtained from the same combination”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
The paired-row intercrop had the highest gross margin for grain at Tk.1,08,200 ha-1.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest gross return (for cob: Tk. 1,27,890 ha-1, for grain: Tk. 1,58,200 ha-1), gross margin (for cob: Tk. 87,890 ha-1, for grain: Tk.1,08,200 ha-1) and benefit cost ratio (for cob: 3.20, for grain: 3.16) were also obtained from the same combination”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
The paired-row intercrop had the highest benefit cost ratio for cob at 3.20.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest gross return (for cob: Tk. 1,27,890 ha-1, for grain: Tk. 1,58,200 ha-1), gross margin (for cob: Tk. 87,890 ha-1, for grain: Tk.1,08,200 ha-1) and benefit cost ratio (for cob: 3.20, for grain: 3.16) were also obtained from the same combination”
t0“Hybrid maize and sweet potato intercropping”
Claim · model-written summary
The paired-row intercrop had the highest benefit cost ratio for grain at 3.16.
Not reportedTreatmentComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the highest gross return (for cob: Tk. 1,27,890 ha-1, for grain: Tk. 1,58,200 ha-1), gross margin (for cob: Tk. 87,890 ha-1, for grain: Tk.1,08,200 ha-1) and benefit cost ratio (for cob: 3.20, for grain: 3.16) were also obtained from the same combination”
t0“Hybrid maize and sweet potato intercropping”
The same questions in other papers
Zea mays · growth · Ipomoea batatas (sweet potato)Positive and negative results
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Zea mays · yield · Ipomoea batatas (sweet potato)Positive and negative results
3 in the opposite direction
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Ipomoea batatas · yield · Zea mays (maize)Positive and negative results
5 papers in the same direction as this paper · 2 in the opposite direction
- negative
- negative
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4 papers more in this group
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.