Abstract
The poor viability of the perennial aromatic grass, palmarosa ( Cymbopogon martinii Stapf. var. motia), in the first year of planting, restricts its popularity among farmers in India. Two pigeonpea cultivars, Bahar (late maturing), and UPAS–120 (early maturing) were intercropped at different row spacings with palmarosa at a row spacing of 60 cm, in the subtropical climate of Lucknow, north India in 1988/89 and 1989/90. Intercropping with the late maturing cv. Bahar at 300 cm row spacing produced 1·26 t/ha grain (2-year mean) without affecting the growth and yield of the palmarosa. Intercropping improved land-use efficiency by 47%, relative net return by 58% and net economic return by Rs. 12500/ha over a sole palmarosa crop. The grain, stalk and total dry matter yield per plant of pigeonpea was considerably improved when grown at the wider row spacing in the intercropped system than when grown as a sole crop. This indicates that the competition between pigeonpea plants was not reduced when palmarosa was present. Palmarosa tiller production and herb and oil yield were significantly reduced when the distance between rows of pigeonpea was narrowed, demonstrating both the greater susceptibility of palmarosa to lack of light, and also that in palmarosa–pigeonpea intercropping systems, competition exists mainly for light rather than for nutrients and moisture, possibly because the two crop components acquire their nutrients and moisture from different soil layers. Intercropping with the high yielding, late maturing pigeonpea cultivar, Bahar, at 300 cm row distance is recommended to make palmarosa cultivation economically viable in the first year of planting. The selection of high yielding, late maturing pigeonpea cultivars with an upright growth habit is suggested as a further way of improving the economic benefits of a palmarosa–pigeonpea intercropping system.
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Claims 10
Claim · model-written summary
Intercropping with the late maturing pigeonpea cultivar Bahar at 300 cm row spacing produced 1·26 t/ha grain without affecting palmarosa growth and yield.
- Taxon
- pigeonpea
Cajanus cajane6 - Material
- Bahare0
- Treatment
- Intercropping with the late maturing cv. Bahar at 300 cm row spacinge0
- Outcome
- graine0
- Value
- 1·26 t/hae0
- Qualifier
- without affecting the growth and yield of the palmarosae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Intercropping with the late maturing cv. Bahar at 300 cm row spacing produced 1·26 t/ha grain (2-year mean) without affecting the growth and yield of the palmarosa”
e6“The grain, stalk and total dry matter yield per plant of pigeonpea”
Claim · model-written summary
Intercropping improved land-use efficiency by 47% over a sole palmarosa crop.
Verbatim
e5“Intercropping improved land-use efficiency by 47%, relative net return by 58% and net economic return by Rs. 12500/ha over a sole palmarosa crop”
Claim · model-written summary
Intercropping improved relative net return by 58% over a sole palmarosa crop.
Verbatim
e5“Intercropping improved land-use efficiency by 47%, relative net return by 58% and net economic return by Rs. 12500/ha over a sole palmarosa crop”
Claim · model-written summary
Intercropping improved net economic return by Rs. 12500/ha over a sole palmarosa crop.
Verbatim
e5“Intercropping improved land-use efficiency by 47%, relative net return by 58% and net economic return by Rs. 12500/ha over a sole palmarosa crop”
Claim · model-written summary
Pigeonpea grain, stalk and total dry matter yield per plant were considerably improved at the wider row spacing in the intercropped system compared with a sole crop.
- Taxon
- pigeonpeaCajanus cajane6
- Treatment
- wider row spacing in the intercropped systeme6
- Outcome
- grain, stalk and total dry matter yield per plante6
- Direction
- considerably improvede6
- Comparator
- sole crope6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The grain, stalk and total dry matter yield per plant of pigeonpea was considerably improved when grown at the wider row spacing in the intercropped system than when grown as a sole crop”
Claim · model-written summary
Competition between pigeonpea plants was not reduced when palmarosa was present.
- Taxon
- pigeonpeaCajanus cajane1
- Treatment
- palmarosa was presente1
- Outcome
- competition between pigeonpea plantse1
- Direction
- not reducede1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“This indicates that the competition between pigeonpea plants was not reduced when palmarosa was present”
Claim · model-written summary
Palmarosa tiller production and herb and oil yield were significantly reduced when the pigeonpea row distance was narrowed.
- Taxon
- palmarosae7
- Treatment
- the distance between rows of pigeonpea was narrowede7
- Outcome
- tiller production and herb and oil yielde7
- Direction
- significantly reducede7
Not reportedComparator
Verbatim
e7“Palmarosa tiller production and herb and oil yield were significantly reduced when the distance between rows of pigeonpea was narrowed”
Claim · model-written summary
Competition between palmarosa and pigeonpea exists mainly for light rather than for nutrients and moisture.
Verbatim
e7“Palmarosa tiller production and herb and oil yield were significantly reduced when the distance between rows of pigeonpea was narrowed”
e2“competition exists mainly for light rather than for nutrients and moisture”
Claim · model-written summary
Intercropping with the late maturing pigeonpea cultivar Bahar at 300 cm row distance is recommended to make palmarosa cultivation economically viable in the first year.
Verbatim
e3“Intercropping with the high yielding, late maturing pigeonpea cultivar, Bahar, at 300 cm row distance is recommended to make palmarosa cultivation economically viable in the first year of planting”
Claim · model-written summary
Selecting high yielding, late maturing pigeonpea cultivars with an upright growth habit is suggested to improve the economic benefits of the system.
- Taxon
- pigeonpeaCajanus cajane4
- Treatment
- selection of high yielding, late maturing pigeonpea cultivars with an upright growth habite4
- Outcome
- economic benefitse4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The selection of high yielding, late maturing pigeonpea cultivars with an upright growth habit is suggested as a further way of improving the economic benefits”
The same questions in other papers
intercropping · yield · Cajanus cajan (pigeon pea)Results differ
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- positive
- negative
- no effect
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See all 117 papers →density · yield · Cajanus cajan (pigeon pea)Positive and negative results
48 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- negative
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See all 52 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.