Abstract
Soil acidity is a serious threat to crop production in Ethiopia. However, liming and soil management practices are effective for restoration of acid soils. The study was conducted to evaluate effects of different tillage practices, liming materials, and liming rates on maize (Zea mays L.) yield components as well as soil physicochemical properties in Assosa and Bambasi Districts of Assosa Zone. A split-split plot design of 2 tillage practices * 2 liming materials * 4 liming rates with three replications for one year was used on each location on farmer-managed plots. The study revealed that the tillage practices showed significant differences on grain per cob at both sites; BD (bulk density), available Cu and Zn at Amba-2 Kebele; whereas, thousand grain weights, CEC (cation exchange capacity), exchangeable Al3+, total acidity, exchangeable Mg2+, available Mn and Zn at Mender-49 Kebele. The liming materials used had shown significant difference on thousand grain weights, Av-P, exchangeable Mg2+, available Fe, Cu and Zn at Amba-2 Kebele; whereas, pH, exchangeable Al3+, total acidity, exchangeable Na+ and Mg2+, available Cu and Zn at Mender-49 Kebele. Furthermore, different liming rates significantly affected all maize yield and yield component parameters as well as soil property parameters except BD and soil texture at both sites, OC (organic carbon) and exchangeable K+ at Amba-2 Kebele were not significant. The interaction effects of the treatments showed significant differences on available micronutrients (Fe, Mn, Cu and Zn) at both Kebeles. Accordingly, the interaction of minimum tillage with recommended rate of dolomitic lime had improved maize productivity through ameliorating the physicochemical properties of acid soils in the study area.
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Claims 16
Claim · model-written summary
Tillage practices differed significantly in grain per cob at both sites.
Zea maysNot reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tillage practices showed significant differences on grain per cob at both sites”
e1“maize (Zea mays L.) yield components”
Claim · model-written summary
Tillage practices significantly affected thousand grain weights at Mender-49 Kebele.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tillage practices showed significant differences on grain per cob at both sites; BD (bulk density), available Cu and Zn at Amba-2 Kebele; whereas, thousand grain weights, CEC (cation exchange capacity), exchangeable Al3+, total acidity, exchangeable Mg2+, available Mn and Zn at Mender-49 Kebele”
e1“maize (Zea mays L.) yield components”
Claim · model-written summary
Tillage practices significantly affected bulk density and available Cu and Zn at Amba-2 Kebele.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“tillage practices showed significant differences on grain per cob at both sites; BD (bulk density), available Cu and Zn at Amba-2 Kebele”
e1“maize (Zea mays L.) yield components”
Claim · model-written summary
Tillage practices significantly affected several soil properties at Mender-49 Kebele.
- Treatment
- tillage practicese1
- Outcome
- CEC (cation exchange capacity), exchangeable Al3+, total aciditye0
- Setting
- Mender-49 Kebelee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“CEC (cation exchange capacity), exchangeable Al3+, total acidity, exchangeable Mg2+, available Mn and Zn at Mender-49 Kebele”
e1“tillage practices showed significant differences”
e2“maize (Zea mays L.) yield components”
Claim · model-written summary
Tillage practices significantly affected exchangeable Mg2+ and available Mn and Zn at Mender-49 Kebele.
- Treatment
- tillage practicese1
- Outcome
- exchangeable Mg2+, available Mn and Zne0
- Setting
- Mender-49 Kebelee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exchangeable Mg2+, available Mn and Zn at Mender-49 Kebele”
e1“tillage practices showed significant differences”
e2“maize (Zea mays L.) yield components”
Claim · model-written summary
Liming materials significantly affected thousand grain weights at Amba-2 Kebele.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The liming materials used had shown significant difference on thousand grain weights, Av-P, exchangeable Mg2+, available Fe, Cu and Zn at Amba-2 Kebele”
e1“maize (Zea mays L.) yield components”
Claim · model-written summary
Liming materials significantly affected soil properties at Amba-2 Kebele.
- Treatment
- liming materialse0
- Outcome
- Av-P, exchangeable Mg2+, available Fe, Cu and Zne0
- Setting
- Amba-2 Kebelee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“liming materials used had shown significant difference on thousand grain weights, Av-P, exchangeable Mg2+, available Fe, Cu and Zn at Amba-2 Kebele”
e1“maize (Zea mays L.) yield components”
Claim · model-written summary
Liming materials significantly affected soil properties at Mender-49 Kebele.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pH, exchangeable Al3+, total acidity, exchangeable Na+ and Mg2+, available Cu and Zn at Mender-49 Kebele”
e1“liming materials used had shown significant difference”
e2“maize (Zea mays L.) yield components”
Claim · model-written summary
Liming materials significantly affected exchangeable Na+ and Mg2+ and available Cu and Zn at Mender-49 Kebele.
- Treatment
- liming materialse1
- Outcome
- exchangeable Na+ and Mg2+, available Cu and Zne0
- Setting
- Mender-49 Kebelee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“exchangeable Na+ and Mg2+, available Cu and Zn at Mender-49 Kebele”
e1“liming materials used had shown significant difference”
e2“maize (Zea mays L.) yield components”
Claim · model-written summary
Liming rates significantly affected all maize yield and yield components.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“different liming rates significantly affected all maize yield and yield component parameters”
Claim · model-written summary
Liming rates significantly affected soil properties except bulk density and soil texture at both sites.
- Treatment
- different liming ratese0
- Outcome
- soil property parameterse0
- Qualifier
- except BD and soil texture at both sitese0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“different liming rates significantly affected all maize yield and yield component parameters as well as soil property parameters except BD and soil texture at both sites”
Claim · model-written summary
Liming rates did not significantly affect bulk density or soil texture at both sites.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil property parameters except BD and soil texture at both sites”
e1“different liming rates significantly affected all maize yield”
Claim · model-written summary
Liming rates did not significantly affect organic carbon or exchangeable K+ at Amba-2 Kebele.
- Treatment
- different liming ratese1
- Outcome
- OC (organic carbon) and exchangeable K+e0
- Setting
- Amba-2 Kebelee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“OC (organic carbon) and exchangeable K+ at Amba-2 Kebele were not significant”
e1“different liming rates significantly affected all maize yield”
Claim · model-written summary
Treatment interactions significantly affected available Fe, Mn and Cu at both Kebeles.
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“interaction effects of the treatments showed significant differences on available micronutrients (Fe, Mn, Cu and Zn) at both Kebeles”
e1“maize (Zea mays L.) yield components”
Claim · model-written summary
Minimum tillage with the recommended dolomitic lime rate improved maize productivity.
- Treatment
- minimum tillage with recommended rate of dolomitic limee0
- Outcome
- maize productivitye0
- Direction
- improvede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“interaction of minimum tillage with recommended rate of dolomitic lime had improved maize productivity through ameliorating the physicochemical properties of acid soils”
Claim · model-written summary
Minimum tillage with the recommended dolomitic lime rate ameliorated physicochemical properties of acid soils.
- Treatment
- minimum tillage with recommended rate of dolomitic limee0
- Outcome
- physicochemical properties of acid soilse0
- Direction
- amelioratinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“interaction of minimum tillage with recommended rate of dolomitic lime had improved maize productivity through ameliorating the physicochemical properties of acid soils”
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