Abstract
Management needs of crops grown for forage in the central clay plains of Sudan were investigated. Reliable seed rate recommendations for a range of forages were difficult to establish because of highly variable field emergence. However, for sorghum, it appeared that 95% of maximum forage yield could be obtained with established seedling populations of 55 plants m-2. Irrigation prior to cultivation and sowing during the dry season nearly doubled field emergence of sorghum and wheat and a similar degree of improvement in emergence was achieved with planting sorghum at 2-cm depth rather than sowing broadcast. Sorghum grown for forage showed an average response to applied N of 20.3 kg dry matter (DM) kg-1 N with application of up to 75 kg N ha-1. Forage production responses to P application were more variable with an average of 12.6 kg DM kg-1 P2O5 within a range of 0.8 to 40.6 kg DM kg-1 P2O5. Among a range of species, the most productive short-term forage crop was grain sorghum cv. UmBanein, which produced on average, 17% more DM than the traditional forage sorghum cv. Abu Sabein when harvested as a whole crop for forage. It is suggested that a policy of seasonal production of irrigated forage in Central Sudan, focussed on the July-January period, should be encouraged in order to maximize efficiency of use of limited water supplies.
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Claims 9
Claim · model-written summary
Reliable seed rate recommendations for a range of forages were difficult to establish because field emergence was highly variable.
Verbatim
e0“Reliable seed rate recommendations for a range of forages were difficult to establish because of highly variable field emergence”
Claim · model-written summary
For sorghum, 95% of maximum forage yield could be obtained with established seedling populations of 55 plants m-2.
SorghumOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“for sorghum, it appeared that 95% of maximum forage yield could be obtained with established seedling populations of 55 plants m-2”
Claim · model-written summary
Irrigation prior to cultivation and sowing during the dry season nearly doubled field emergence of sorghum.
- Treatment
- Irrigation prior to cultivation and sowing during the dry seasone0
- Outcome
- field emergencee0
- Direction
- nearly doublede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation prior to cultivation and sowing during the dry season nearly doubled field emergence of sorghum and wheat”
Claim · model-written summary
Irrigation prior to cultivation and sowing during the dry season nearly doubled field emergence of wheat.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Irrigation prior to cultivation and sowing during the dry seasone0
- Outcome
- field emergencee0
- Direction
- nearly doublede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Irrigation prior to cultivation and sowing during the dry season nearly doubled field emergence of sorghum and wheat”
Claim · model-written summary
Planting sorghum at 2-cm depth rather than sowing broadcast improved emergence to a similar degree.
- Treatment
- planting sorghum at 2-cm depthe0
- Outcome
- emergencee0
- Direction
- improvemente0
- Comparator
- sowing broadcaste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a similar degree of improvement in emergence was achieved with planting sorghum at 2-cm depth rather than sowing broadcast”
Claim · model-written summary
Sorghum grown for forage showed an average response to applied N of 20.3 kg DM per kg N with application of up to 75 kg N ha-1.
- Treatment
- application of up to 75 kg N ha-1e0
- Outcome
- average response to applied Ne0
- Direction
- increaseinferrede0
- Value
- 20.3 kg dry matter (DM) kg-1 Ne0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sorghum grown for forage showed an average response to applied N of 20.3 kg dry matter (DM) kg-1 N with application of up to 75 kg N ha-1”
Claim · model-written summary
Forage production responses to P application were more variable, averaging 12.6 kg DM per kg P2O5 within a range of 0.8 to 40.6.
- Treatment
- P applicatione0
- Outcome
- Forage production responsese0
- Direction
- increaseinferrede0
- Value
- 12.6 kg DM kg-1 P2O5e0
- Qualifier
- range of 0.8 to 40.6 kg DM kg-1 P2O5e0
Not reportedTaxonComparator
Verbatim
e0“Forage production responses to P application were more variable with an average of 12.6 kg DM kg-1 P2O5 within a range of 0.8 to 40.6 kg DM kg-1 P2O5”
Claim · model-written summary
Grain sorghum cv. UmBanein was the most productive short-term forage crop, producing on average 17% more DM than the traditional forage sorghum cv. Abu Sabein.
- Material
- grain sorghum cv. UmBaneine0
- Outcome
- DMe0
- Direction
- moree0
- Value
- 17%e0
- Comparator
- traditional forage sorghum cv. Abu Sabeine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the most productive short-term forage crop was grain sorghum cv. UmBanein, which produced on average, 17% more DM than the traditional forage sorghum cv. Abu Sabein when harvested as a whole crop for forage”
Claim · model-written summary
The authors suggest encouraging seasonal production of irrigated forage in Central Sudan, focussed on July-January, to maximize efficiency of use of limited water.
Verbatim
e0“a policy of seasonal production of irrigated forage in Central Sudan, focussed on the July-January period, should be encouraged”
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85 papers in the same direction as this paper · 343 in the opposite direction · 2 reporting no difference from an alternative
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See all 431 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.