Abstract
In order to determine the optimum sowing date and NPK fertilizer rate for two groundnut (Arachis hypogaea L.) varieties for best yield performance and to improve their production, field trials were conducted during the 2004 and 2005 cropping seasons at Samaru, Nigeria. The treatments were composed of factorial combinations of three sowing dates (mid-June, end-June and mid-July), three NPK fertilizer rates (10 kg N+13 kg P+13 kg K ha-1, 20 kg N+26 kg P+26 kg K ha-1 and 30 kg N+39 kg P+39 kg K ha-1) and two varieties (SAMNUT-22 and SAMNUT-23). Fertilizer rates x sowing dates constituted the main plot while varieties were assigned to the sub-plot as the experiment was laid out in split-plot design with four replications. Delaying of groundnut sowing till mid-July caused a 27.3% decline in number of pods per plant. When sowing was delayed until end of June or mid-July, pod, seed and haulm yields declined 44.9, 45.2 and 23.5%, respectively relative to sowing in mid-June. However, parameters such as number of pods per plant, pod yield and seed yield were not influenced significantly by fertilizer rate. Variety SAMNUT-23 produced significantly more pods per plant and higher pod, seed and haulm yields than SAMNUT-22. Significant interactions were observed between the treatment factors for most yield attributes. In most cases variety was a function in the response of the parameters to treatments. It was found that when SAMNUT-23 was sown in mid-June it significantly out-performed SAMNUT-22. We conclude that early sowing enhanced positive response of pod yield to NPK fertilizer application while the optimum sowing date for good yield performance in both varieties is mid-June.
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Claims 12
Claim · model-written summary
Delaying groundnut sowing until mid-July reduced pod number per plant by 27.3%.
- Taxon
- Groundnut
Arachis hypogaeat0 - Treatment
- Delaying of groundnut sowing till mid-Julye1
- Outcome
- number of pods per plante1
- Direction
- declinee1
- Value
- 27.3%e1
- Setting
- Samaru, Nigeriae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.)”
e1“Delaying of groundnut sowing till mid-July caused a 27.3% decline in number of pods per plant”
e2“field trials were conducted during the 2004 and 2005 cropping seasons at Samaru, Nigeria”
Claim · model-written summary
Delayed sowing to end of June or mid-July reduced pod yield by 44.9% relative to mid-June sowing.
- Taxon
- GroundnutArachis hypogaeat0
- Treatment
- sowing was delayed until end of June or mid-Julye3
- Outcome
- pod, seed and haulm yieldse3
- Direction
- declinede3
- Value
- 44.9e3
- Comparator
- sowing in mid-Junee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.)”
e3“When sowing was delayed until end of June or mid-July, pod, seed and haulm yields declined 44.9, 45.2 and 23.5%, respectively relative to sowing in mid-June”
Claim · model-written summary
Delayed sowing to end of June or mid-July reduced seed yield by 45.2% relative to mid-June sowing.
- Taxon
- GroundnutArachis hypogaeat0
- Treatment
- sowing was delayed until end of June or mid-Julye3
- Outcome
- pod, seed and haulm yieldse3
- Direction
- declinede3
- Value
- 45.2e3
- Comparator
- sowing in mid-Junee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.)”
e3“When sowing was delayed until end of June or mid-July, pod, seed and haulm yields declined 44.9, 45.2 and 23.5%, respectively relative to sowing in mid-June”
Claim · model-written summary
Delayed sowing to end of June or mid-July reduced haulm yield by 23.5% relative to mid-June sowing.
- Taxon
- GroundnutArachis hypogaeat0
- Treatment
- sowing was delayed until end of June or mid-Julye3
- Outcome
- pod, seed and haulm yieldse3
- Direction
- declinede3
- Value
- 23.5%e3
- Comparator
- sowing in mid-Junee3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.)”
e3“When sowing was delayed until end of June or mid-July, pod, seed and haulm yields declined 44.9, 45.2 and 23.5%, respectively relative to sowing in mid-June”
Claim · model-written summary
Fertilizer rate did not significantly influence number of pods per plant, pod yield or seed yield.
- Taxon
- GroundnutArachis hypogaeat0
- Treatment
- fertilizer ratee4
- Outcome
- number of pods per plant, pod yield and seed yielde4
- Direction
- no_changeinferrede4
- Setting
- Samaru, Nigeriae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.)”
e4“However, parameters such as number of pods per plant, pod yield and seed yield were not influenced significantly by fertilizer rate”
e2“field trials were conducted during the 2004 and 2005 cropping seasons at Samaru, Nigeria”
Claim · model-written summary
SAMNUT-23 produced significantly more pods per plant than SAMNUT-22.
- Taxon
- GroundnutArachis hypogaeat0
- Material
- SAMNUT-23e5
- Outcome
- pods per plante5
- Direction
- moree5
- Comparator
- SAMNUT-22e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.)”
e5“Variety SAMNUT-23 produced significantly more pods per plant and higher pod, seed and haulm yields than SAMNUT-22”
Claim · model-written summary
SAMNUT-23 had higher pod, seed and haulm yields than SAMNUT-22.
- Taxon
- GroundnutArachis hypogaeat0
- Material
- SAMNUT-23e5
- Outcome
- pod, seed and haulm yieldse5
- Direction
- highere5
- Comparator
- SAMNUT-22e5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.)”
e5“Variety SAMNUT-23 produced significantly more pods per plant and higher pod, seed and haulm yields than SAMNUT-22”
Claim · model-written summary
Treatment factors interacted significantly for most yield attributes.
- Taxon
- GroundnutArachis hypogaeat0
- Treatment
- the treatment factorse6
- Outcome
- yield attributese6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.)”
e6“Significant interactions were observed between the treatment factors for most yield attributes. In most cases variety was a function in the response of the parameters to treatments. It was found that when SAMNUT-23 was sown in mid-June it significantly out-performed SAMNUT-22”
Claim · model-written summary
In most cases variety modulated the response of yield parameters to treatments.
- Taxon
- GroundnutArachis hypogaeat0
- Material
- varietye6
- Outcome
- the response of the parameters to treatmentse6
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.)”
e6“Significant interactions were observed between the treatment factors for most yield attributes. In most cases variety was a function in the response of the parameters to treatments. It was found that when SAMNUT-23 was sown in mid-June it significantly out-performed SAMNUT-22”
Claim · model-written summary
SAMNUT-23 sown in mid-June significantly out-performed SAMNUT-22.
- Taxon
- GroundnutArachis hypogaeat0
- Material
- SAMNUT-23e6
- Treatment
- when SAMNUT-23 was sown in mid-Junee6
- Outcome
- out-performede6
- Direction
- significantly out-performede6
- Comparator
- SAMNUT-22e6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.)”
e6“Significant interactions were observed between the treatment factors for most yield attributes. In most cases variety was a function in the response of the parameters to treatments. It was found that when SAMNUT-23 was sown in mid-June it significantly out-performed SAMNUT-22”
Claim · model-written summary
Early sowing enhanced the positive response of groundnut pod yield to NPK fertilizer application.
- Taxon
- GroundnutArachis hypogaeat0
- Treatment
- NPK fertilizer applicatione7
- Outcome
- pod yielde7
- Direction
- enhancede7
- Qualifier
- positive responsee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.)”
e7“We conclude that early sowing enhanced positive response of pod yield to NPK fertilizer application while the optimum sowing date for good yield performance in both varieties is mid-June”
Claim · model-written summary
Mid-June is the optimum sowing date for good yield performance of both groundnut varieties.
- Taxon
- GroundnutArachis hypogaeat0
- Outcome
- optimum sowing date for good yield performancee7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Groundnut (Arachis hypogaea L.)”
e7“We conclude that early sowing enhanced positive response of pod yield to NPK fertilizer application while the optimum sowing date for good yield performance in both varieties is mid-June”
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