Abstract
SUMMARY The productivity of each component of a sorghum/groundnut intercrop and its constituent sole crops is determined in terms of a ‘Crop Performance Ratio’ (CPR) defined as the productivity of an intercrop per unit area of ground compared with that expected from sole crops sown in the same proportions. The CPR allows productivity, intercepted radiation and seasonal transpiration to be compared so that conversion coefficients for radiation (e; g MJ −1 ) and dry matter/water ratios (q; g kg −1 ) can be calculated for each intercrop component and its constituent sole crops. In this experiment, CPR for total dry weight in the intercrop was 1.08 and that for reproductive yield was 1.27. These advantages in overall productivity and yield were typical of those reported elsewhere for sorghum/groundnut intercrops. The proportional increase in total dry matter in the intercrop was largely a result of its greater interception of radiation. The further advantage in reproductive yield was a consequence of an improved harvest index in the sorghum component of the intercrop (0.64) compared with that of its sole crop counterpart (0.55).
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Claims 5
Claim · model-written summary
The intercrop had a crop performance ratio of 1.08 for total dry weight relative to sole crops.
- Taxon
- sorghum/groundnut
Arachis hypogaea
Sorghume0 - Treatment
- intercrope1
- Outcome
- CPR for total dry weighte1
- Direction
- higherinferrede1
- Value
- 1.08e1
- Comparator
- sole cropse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“productivity of each component of a sorghum/groundnut intercrop”
e1“In this experiment, CPR for total dry weight in the intercrop was 1.08 and that for reproductive yield was 1.27”
e2“compared with that expected from sole crops sown in the same proportions”
Claim · model-written summary
The intercrop had a crop performance ratio of 1.27 for reproductive yield relative to sole crops.
- Taxon
- sorghum/groundnutArachis hypogaeaSorghume0
- Treatment
- intercrope1
- Outcome
- reproductive yielde1
- Direction
- higherinferrede1
- Value
- 1.27e1
- Comparator
- sole cropse2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“productivity of each component of a sorghum/groundnut intercrop”
e1“In this experiment, CPR for total dry weight in the intercrop was 1.08 and that for reproductive yield was 1.27”
e2“compared with that expected from sole crops sown in the same proportions”
Claim · model-written summary
The proportional increase in total dry matter of the intercrop was largely a result of its greater interception of radiation.
- Taxon
- sorghum/groundnutArachis hypogaeaSorghume0
- Outcome
- total dry mattere3
- Qualifier
- largely a result of its greater interception of radiatione3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“productivity of each component of a sorghum/groundnut intercrop”
e3“The proportional increase in total dry matter in the intercrop was largely a result of its greater interception of radiation”
Claim · model-written summary
The sorghum component of the intercrop had an improved harvest index of 0.64 compared with its sole crop counterpart.
- Treatment
- sorghum component of the intercrope4
- Outcome
- harvest indexe4
- Direction
- improvede4
- Value
- 0.64e4
- Comparator
- sole crop counterparte4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“productivity of each component of a sorghum/groundnut intercrop”
e4“an improved harvest index in the sorghum component of the intercrop (0.64) compared with that of its sole crop counterpart (0.55)”
Claim · model-written summary
The advantage in reproductive yield of the intercrop was a consequence of an improved harvest index in the sorghum component.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“productivity of each component of a sorghum/groundnut intercrop”
e5“The further advantage in reproductive yield was a consequence of an improved harvest index in the sorghum component of the intercrop”
The same questions in other papers
intercropping · yield · Arachis hypogaea (peanut)Results differ
78 papers in the same direction as this paper · 39 in the opposite direction · 1 reporting no difference from an alternative
- positive
- negative
- negative
115 papers more in this group
See all 119 papers →intercropping · yield · SorghumResults differ
117 papers in the same direction as this paper · 42 in the opposite direction · 5 reporting no difference from an alternative
- negative
- negative
- positive
161 papers more in this group
See all 165 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.