Abstract
A field experiment was conducted for two years (2006 and 2007) during the belg seasons on strongly acid clay loam (Haplic Alisols) soils at Chencha research substation, Southern Ethiopia. The objective was to examine the effect of seedbed preparation methods and organic-inorganic fertilizers on potato tuber yield and soil properties. The experiment was arranged in split-plot design with seed bed preparation methods: hoe plough once (M1), hoe plough twice (M2) and hoe plough thrice (M3) as main plots, and fertilization levels, namely, a control without fertilizer, NP, NPK, NP+FYM, NPK+FYM and FYM as sub plots with three replicates. Results indicated that there were significant (P< 0.05) potato tuber yield differences among sub-treatments. The impact of main treatments showed no yield difference. Application of FYM and NPK significantly increased the yield of potato both years. NP application alone did not influence potato yield but significantly increased when combined with FYM. Exclusion of K from either inorganic or combined inorganic-organic fertilizer treatments significantly decreased tuber yield, suggesting K as a major limiting factor on potato production. Combined application of FYM and NPK gave the highest potato yield (41.28 t/ha). The highest net benefit (birr 23982) and maximum marginal rate of return (1060.8) were also achieved with the combined application of FYM and NPK. This result suggests that combined application of FYM and NPK is suitable for better potato production in the Alisols of Chencha.
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Claims 12
Claim · model-written summary
Potato tuber yield differed significantly among fertilizer sub-treatments.
- Taxon
- Potato
Solanum tuberosumt0 - Outcome
- potato tuber yield differencese0
- Qualifier
- sub-treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“there were significant (P< 0.05) potato tuber yield differences among sub-treatments.”
t0“Potato”
Claim · model-written summary
Seedbed preparation main treatments showed no yield difference.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- main treatmentse0
- Outcome
- yielde0
- Direction
- no yield differencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The impact of main treatments showed no yield difference.”
t0“Potato”
Claim · model-written summary
FYM significantly increased potato yield in both years.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- FYMe0
- Outcome
- yield of potatoe0
- Direction
- increasede0
- Qualifier
- both yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of FYM and NPK significantly increased the yield of potato both years.”
Claim · model-written summary
NPK significantly increased potato yield in both years.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- NPKe0
- Outcome
- yield of potatoe0
- Direction
- increasede0
- Qualifier
- both yearse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of FYM and NPK significantly increased the yield of potato both years.”
Claim · model-written summary
NP alone did not influence potato yield.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- NP application alonee0
- Outcome
- potato yielde0
- Direction
- did not influencee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NP application alone did not influence potato yield”
Claim · model-written summary
NP with FYM significantly increased potato yield.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- combined with FYMe0
- Outcome
- potato yielde0
- Direction
- increasede0
- Comparator
- NP application alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NP application alone did not influence potato yield but significantly increased when combined with FYM.”
Claim · model-written summary
Excluding K from inorganic fertilizer significantly decreased tuber yield.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- Exclusion of K from either inorganice0
- Outcome
- tuber yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exclusion of K from either inorganic or combined inorganic-organic fertilizer treatments significantly decreased tuber yield”
t0“Potato”
Claim · model-written summary
Excluding K from combined inorganic-organic fertilizer significantly decreased tuber yield.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- combined inorganic-organic fertilizer treatmentse0
- Outcome
- tuber yielde0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Exclusion of K from either inorganic or combined inorganic-organic fertilizer treatments significantly decreased tuber yield”
t0“Potato”
Claim · model-written summary
FYM plus NPK gave the highest potato yield of 41.28 t/ha.
- Taxon
- potatoSolanum tuberosume0
- Treatment
- Combined application of FYM and NPKe0
- Outcome
- potato yielde0
- Direction
- higheste0
- Value
- 41.28 t/hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined application of FYM and NPK gave the highest potato yield (41.28 t/ha).”
Claim · model-written summary
FYM plus NPK gave the highest net benefit of birr 23982.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- combined application of FYM and NPKe0
- Outcome
- net benefite0
- Direction
- higheste0
- Value
- birr 23982e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest net benefit (birr 23982) and maximum marginal rate of return (1060.8) were also achieved with the combined application of FYM and NPK.”
t0“Potato”
Claim · model-written summary
FYM plus NPK gave the maximum marginal rate of return of 1060.8.
- Taxon
- PotatoSolanum tuberosumt0
- Treatment
- combined application of FYM and NPKe0
- Outcome
- marginal rate of returne0
- Direction
- maximume0
- Value
- 1060.8e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest net benefit (birr 23982) and maximum marginal rate of return (1060.8) were also achieved with the combined application of FYM and NPK.”
t0“Potato”
Claim · model-written summary
The authors recommend combined FYM and NPK for potato production in Chencha Alisols.
- Taxon
- potatoSolanum tuberosume0
- Outcome
- combined application of FYM and NPK is suitable for better potato productione0
- Setting
- Chenchae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combined application of FYM and NPK is suitable for better potato production in the Alisols of Chencha.”
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