Abstract
In Nigeria and other Sub-Saharan Countries of Africa, erosion is pervasive and major source for loss of soil and productivity. This has necessitated continued search for appropriate soil management technologies to ensure sustained and profitable crop production. An experiment was carried out using maize (Zea mays L.) to evaluate organic carbon dynamics and changes in some physical properties of soil and grain yield of maize under conservative tillage practices on an ultisol in Southeastern Nigeria. The study consisted of three conservative tillage practices which were laid out in the field using randomized complete block design replicated seven times. Data were analyzed using statistical analysis for agricultural science. Results showed that tillage reduced seedlings emergence by 5 days compared to zero tillage. Highest grain yield of maize, significantly higher by 4 and 20% was obtained in deep tilled plot when compared to yields in shallow and zero tilled plots. Deep tilled plot had 2-9% significantly lower bulk density and 20-36, 1-8 and 27-55% higher total porosity, gravimetric moisture content and saturated hydraulic conductivity when compared to shallow tilled and zero tilled plots. Deep tilled plot had 15 and 55% significantly organic carbon when compared to their counterparts in shallow and zero tilled plots. Conservative tillage practices are recommended for sustainable and profitable production of maize crop in Nigeria. Key words: Edaphic, grain yield, organic carbon, soil properties, tillage practices.
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Claims 10
Claim · model-written summary
Tillage reduced maize seedling emergence by 5 days compared with zero tillage.
- Treatment
- tillagee1
- Outcome
- seedlings emergencee1
- Direction
- reducede1
- Value
- 5 dayse1
- Comparator
- zero tillagee1
- Setting
- Southeastern Nigeriae0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An experiment was carried out using maize (Zea mays L.) to evaluate organic carbon dynamics and changes in some physical properties of soil and grain yield of maize under conservative tillage practices on an ultisol in Southeastern Nigeria”
e1“Results showed that tillage reduced seedlings emergence by 5 days compared to zero tillage”
Claim · model-written summary
Deep tilled plot grain yield of maize was significantly higher by 4 than shallow tilled plot.
- Treatment
- deep tilled plote2
- Outcome
- grain yielde2
- Direction
- highere2
- Value
- 4e2
- Comparator
- shallowe2
- Setting
- Southeastern Nigeriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An experiment was carried out using maize (Zea mays L.) to evaluate organic carbon dynamics and changes in some physical properties of soil and grain yield of maize under conservative tillage practices on an ultisol in Southeastern Nigeria”
e2“Highest grain yield of maize, significantly higher by 4 and 20% was obtained in deep tilled plot when compared to yields in shallow and zero tilled plots”
Claim · model-written summary
Deep tilled plot grain yield of maize was significantly higher by 20% than zero tilled plot.
- Treatment
- deep tilled plote2
- Outcome
- grain yielde2
- Direction
- highere2
- Value
- 20%e2
- Comparator
- zero tillede2
- Setting
- Southeastern Nigeriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An experiment was carried out using maize (Zea mays L.) to evaluate organic carbon dynamics and changes in some physical properties of soil and grain yield of maize under conservative tillage practices on an ultisol in Southeastern Nigeria”
e2“Highest grain yield of maize, significantly higher by 4 and 20% was obtained in deep tilled plot when compared to yields in shallow and zero tilled plots”
Claim · model-written summary
Deep tillage gave significantly lower soil bulk density (2-9%) than shallow and zero tillage.
- Treatment
- Deep tilled plote3
- Outcome
- bulk densitye3
- Direction
- lowere3
- Value
- 2-9%e3
- Comparator
- shallow tilled and zero tilled plotse3
- Setting
- Southeastern Nigeriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An experiment was carried out using maize (Zea mays L.) to evaluate organic carbon dynamics and changes in some physical properties of soil and grain yield of maize under conservative tillage practices on an ultisol in Southeastern Nigeria”
e3“Deep tilled plot had 2-9% significantly lower bulk density and 20-36, 1-8 and 27-55% higher total porosity, gravimetric moisture content and saturated hydraulic conductivity when compared to shallow tilled and zero tilled plots”
Claim · model-written summary
Deep tillage gave higher total porosity (20-36%) than shallow and zero tillage.
- Treatment
- Deep tilled plote3
- Outcome
- total porositye3
- Direction
- highere3
- Value
- 20-36e3
- Comparator
- shallow tilled and zero tilled plotse3
- Setting
- Southeastern Nigeriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An experiment was carried out using maize (Zea mays L.) to evaluate organic carbon dynamics and changes in some physical properties of soil and grain yield of maize under conservative tillage practices on an ultisol in Southeastern Nigeria”
e3“Deep tilled plot had 2-9% significantly lower bulk density and 20-36, 1-8 and 27-55% higher total porosity, gravimetric moisture content and saturated hydraulic conductivity when compared to shallow tilled and zero tilled plots”
Claim · model-written summary
Deep tillage gave higher gravimetric moisture content (1-8%) than shallow and zero tillage.
- Treatment
- Deep tilled plote3
- Outcome
- gravimetric moisture contente3
- Direction
- highere3
- Value
- 1-8e3
- Comparator
- shallow tilled and zero tilled plotse3
- Setting
- Southeastern Nigeriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An experiment was carried out using maize (Zea mays L.) to evaluate organic carbon dynamics and changes in some physical properties of soil and grain yield of maize under conservative tillage practices on an ultisol in Southeastern Nigeria”
e3“Deep tilled plot had 2-9% significantly lower bulk density and 20-36, 1-8 and 27-55% higher total porosity, gravimetric moisture content and saturated hydraulic conductivity when compared to shallow tilled and zero tilled plots”
Claim · model-written summary
Deep tillage gave higher saturated hydraulic conductivity (27-55%) than shallow and zero tillage.
- Treatment
- Deep tilled plote3
- Outcome
- saturated hydraulic conductivitye3
- Direction
- highere3
- Value
- 27-55%e3
- Comparator
- shallow tilled and zero tilled plotse3
- Setting
- Southeastern Nigeriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An experiment was carried out using maize (Zea mays L.) to evaluate organic carbon dynamics and changes in some physical properties of soil and grain yield of maize under conservative tillage practices on an ultisol in Southeastern Nigeria”
e3“Deep tilled plot had 2-9% significantly lower bulk density and 20-36, 1-8 and 27-55% higher total porosity, gravimetric moisture content and saturated hydraulic conductivity when compared to shallow tilled and zero tilled plots”
Claim · model-written summary
Deep tillage gave significantly higher organic carbon (15%) than shallow tillage.
- Treatment
- Deep tilled plote4
- Outcome
- organic carbone4
- Direction
- higherinferrede4
- Value
- 15e4
- Comparator
- shallowe4
- Setting
- Southeastern Nigeriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An experiment was carried out using maize (Zea mays L.) to evaluate organic carbon dynamics and changes in some physical properties of soil and grain yield of maize under conservative tillage practices on an ultisol in Southeastern Nigeria”
e4“Deep tilled plot had 15 and 55% significantly organic carbon when compared to their counterparts in shallow and zero tilled plots”
Claim · model-written summary
Deep tillage gave significantly higher organic carbon (55%) than zero tillage.
- Treatment
- Deep tilled plote4
- Outcome
- organic carbone4
- Direction
- higherinferrede4
- Value
- 55%e4
- Comparator
- zero tillede4
- Setting
- Southeastern Nigeriae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An experiment was carried out using maize (Zea mays L.) to evaluate organic carbon dynamics and changes in some physical properties of soil and grain yield of maize under conservative tillage practices on an ultisol in Southeastern Nigeria”
e4“Deep tilled plot had 15 and 55% significantly organic carbon when compared to their counterparts in shallow and zero tilled plots”
Claim · model-written summary
Conservative tillage practices are recommended for sustainable and profitable production of maize in Nigeria.
- Treatment
- Conservative tillage practicese5
- Outcome
- sustainable and profitable production of maize crope5
- Setting
- Nigeriae5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“Conservative tillage practices are recommended for sustainable and profitable production of maize crop in Nigeria”
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