Abstract
Sorghum (Sorghum bicolor L. Moench) production is mainly constrained by soil water and nutrient deficits in northern Ethiopia. The aim of this research was to evaluate the effects of tillage and fertilizer practices on productivity of two sorghum varieties in Abergelle area, northern Ethiopia. The experimental design was split-plot design. The main-plot treatments included five tillage practices. These were shilshalo (traditional ridge without ties) for broadcasted planting (SBP), tied-ridging at planting (TR0WAP), tied-ridging at four weeks after planting (TR4WAP), zero tillage (ZT), and shilshalo for row planting (SRP). Two fertilizer rates of nitrogen (N) and phosphorus (P), as0-0 N-P ha-1(without fertilizer, F1) and 32-10 kg N-P ha-1 (with fertilizer, F2) treatments, were used in the sub-plots. The local sorghum varieties i.e., Woitoziraand Chibal (Sorghum bicolor L. Moench) were tested for two years (2002-2003). The pooled and yearly-basis data analysis showed that the main and interaction treatment effects were significantly (P ≤ 0.05) influenced the yield and yield components of both varieties. This study also demonstrated sorghum yield increment by 7 to 48% due to the interaction effect of TR0WAP with F2 as compared to the interaction effects of the other tillage treatments with F2. However, the increment of yield and yield components due to the tied-ridging and fertilizer interaction effects were higher for Chibalas compared to Woitozira. The mean sorghum crop yield due to TR0WAP interaction with F2 for Chibal was 1.45 t ha-1 and that of Woitozirawas 1.31t ha-1. Thus, suitable time of tied-ridging integrated with proper rate of fertilizer should be adopted for effective increase of crop production in the semi-arid areas of northern Ethiopia such as the Abergelle area.Keywords: Abergelle area, Fertilizer, Sorghum varieties, Tied-ridging, Tillage practices, Northern Ethiopia
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Claims 6
Claim · model-written summary
Main and interaction treatments significantly affected yield and yield components in both varieties.
- Treatment
- main and interaction treatment effectse0
- Outcome
- yield and yield componentse0
- Qualifier
- both varietiese0
SorghumNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the main and interaction treatment effects were significantly (P ≤ 0.05) influenced the yield and yield components of both varieties.”
t0“Sorghum Production”
Claim · model-written summary
TR0WAP with F2 increased sorghum yield by 7 to 48% over other tillage treatments with F2.
- Treatment
- TR0WAP with F2e0
- Outcome
- sorghum yielde0
- Direction
- incremente0
- Value
- 7 to 48%e0
- Comparator
- other tillage treatments with F2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sorghum yield increment by 7 to 48% due to the interaction effect of TR0WAP with F2 as compared to the interaction effects of the other tillage treatments with F2.”
Claim · model-written summary
Tied ridging and fertilizer increased yield and components more for Chibalas than Woitozira.
- Material
- Chibalase0
- Treatment
- tied-ridging and fertilizer interaction effectse0
- Outcome
- yield and yield componentse0
- Direction
- highere0
- Comparator
- Woitozirae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increment of yield and yield components due to the tied-ridging and fertilizer interaction effects were higher for Chibalas compared to Woitozira.”
t0“Sorghum Production”
Claim · model-written summary
TR0WAP with F2 produced mean yield of 1.45 t ha-1 for Chibal.
- Material
- Chibale0
- Treatment
- TR0WAP interaction with F2e0
- Outcome
- mean sorghum crop yielde0
- Value
- 1.45 t ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean sorghum crop yield due to TR0WAP interaction with F2 for Chibal was 1.45 t ha-1 and that of Woitozirawas 1.31t ha-1.”
Claim · model-written summary
TR0WAP with F2 produced mean yield of 1.31t ha-1 for Woitozira.
- Material
- Woitozirae0
- Treatment
- TR0WAP interaction with F2e0
- Outcome
- mean sorghum crop yielde0
- Value
- 1.31t ha-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The mean sorghum crop yield due to TR0WAP interaction with F2 for Chibal was 1.45 t ha-1 and that of Woitozirawas 1.31t ha-1.”
t0“Sorghum Production”
Claim · model-written summary
Appropriately timed tied ridging with fertilizer should be adopted to increase production.
- Outcome
- suitable time of tied-ridging integrated with proper rate of fertilizer should be adoptede0
- Setting
- Abergelle areae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“suitable time of tied-ridging integrated with proper rate of fertilizer should be adopted for effective increase of crop production in the semi-arid areas of northern Ethiopia such as the Abergelle area”
t0“Sorghum Production”
The same questions in other papers
fertilization · yield · SorghumPositive and negative results
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