Soil conditions and cowpea and maize yield produced by tillage methods in the rainforest zone of Nigeria

Ojeniyi, S. O.; Adekayode, F. O.

doi:10.1016/s0167-1987(99)00018-5

Cited by 25 publications

(22 citation statements)

References 2 publications

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“…Zero tillage with mulch (ZTM) produced the smallest decrease in soil organic C (SOC), total N, available P and exchangeable K, Ca and Mg concentrations compared with other tillage treatments. The influence of zero tillage with mulch in conserving the soil fertility properties had been widely reported (Ojeniyi and Adekayode, 1999;Agbede and Ojeniyi, 2003;Agbede, 2005Agbede, , 2006Agbede, , 2008. The best fertility status of zero tillage with mulch compared with other tillage systems could be adduced to the presence of vegetative surface mulch, availability of nutrients, possibly reduced leaching, and increased associated activities of beneficial soil fauna in organic matter decomposition (Agbede, 2007).…”

Section: Effect Of Tillage Methods and Poultry Manure On Soil Chemicamentioning

confidence: 97%

“…Zero tillage without mulch also had significantly higher concentration of soil total N, available P, exchangeable K, Ca and Mg compared with ploughing plus harrowing twice but these did not differ significantly from soils that were ploughed or ploughed and harrowed, except N and Ca at ISUADA in 2005 and K at RUGIPO and ISUADA in 2006 with values which were significantly lower than that of zero tillage without mulch. Zero tillage without mulch has been shown to conserve soil organic C and nutrient concentrations as opposed to mechanized tillage methods (Ojeniyi and Adekayode, 1999;Agbede, 2005Agbede, , 2008. In almost all cases, ploughing plus harrowing twice produced the least soil nutrient concentrations compared to other tillage methods.…”

Section: Effect Of Tillage Methods and Poultry Manure On Soil Chemicamentioning

confidence: 99%

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Tillage and poultry manure effects on soil fertility and sorghum yield in southwestern Nigeria

Agbede¹,

Ojeniyi

2009

Soil and Tillage Research

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Section: Effect Of Tillage Methods and Poultry Manure On Soil Chemicamentioning

confidence: 97%

Section: Effect Of Tillage Methods and Poultry Manure On Soil Chemicamentioning

confidence: 99%

Tillage and poultry manure effects on soil fertility and sorghum yield in southwestern Nigeria

Agbede¹,

Ojeniyi

2009

Soil and Tillage Research

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“…The higher water content of MCo compared with CTo is consistent with its lower porosity. The turbulent movement of atmospheric air into soils which enhanced water evaporation occurs through larger pores (Ojeniyi and Adekayode, 1999;. found that for sandy soils of southwest Nigeria, water content increased with bulk density.…”

Section: Discussionmentioning

confidence: 97%

“…The importance of no-tillage in soil and water conservation and growth and yields of crops in Nigeria had been reported (Ojeniyi and Adekayode, 1999;Agbede, 2008;Agbede and Ojeniyi, 2009). For large scale production of crops especially sweet potato, the use of mechanized tillage is inevitable.…”

Section: Introductionmentioning

confidence: 95%

Evaluation of sweet potato (Ipomoea batatas L.) performance and soil<br>properties under tillage methods and poultry manure levels

Adekiya¹

2011

Emir. J. Food Agric

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Abstract:Research study on the effect of tillage systems and application rate of poultry manure on sweet potato (Ipomoea batatas) in Alfisol of southwest Nigeria is lacking. Field trials were conducted in 2006, 2007 and 2008 cropping seasons on an Alfisol (Oxic Tropuldalf) at Owo in rainforest zone of southwest Nigeria. The trials consisted of the factorial combinations of two tillage methods (manual clearing and conventional tillage) and four manure levels (0, 5, 10 and 15 t/ha) arranged in a randomized complete block design and replicated three times. Conventional tillage alone (CTo) resulted in lower soil N, P, K, Ca, Mg and soil organic C and better leaf N, P, K, Ca and Mg concentrations, growth and yield of sweet potato compared with manually cleared (MCo) plots. The better performance of sweet potato under conventional tillage (CTo) was adduced to reduced bulk density. Bulk density was negatively correlated with yield. Conventional tillage alone (CTo) improves sweet potato tuber yield by 62, 55 and 42% in 2006, 2007 and 2008, respectively compared with manual clearing alone (MCo). In both the manually cleared and conventionally tilled plots, soil organic C, N, P, K, Ca, Mg and water content increased with amount of poultry manure, while soil pH, bulk density and temperature were reduced. Yields given by 5, 10 and 15 t/ha poultry manure were not significantly different under both manually cleared and conventionally tilled treatments. Conventional tillage plus 5 t/ha poultry manure (CT+5 PM) produced the highest overall yield. Compared with manual clearing alone (MCo) and conventional tillage alone (CTo), conventional tillage plus 5 t/ha poultry manure (CT+5 PM) improved tuber yield of sweet potato by 117 and 43%, respectively. Therefore the use of 5 t/ha poultry manure with conventional tillage is recommended for sweet potato production on an Alfisol of southwest Nigeria. Keywords

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“…Karunatilake et al (2000) found that maize yield was significantly higher under moldboard plow till in 1992, but similar to NT in 1993. Moreover, Ojeniyi and Adekayode (1999) observed that no-tillage could be substitute for mechanized tillage without significant loss in yield of cowpea and maize and soil fertility. The lowest sustainable yield index (SYI) was determined in NT+Rim plots (Fig.…”

Section: Maize Growth and Yieldmentioning

confidence: 99%

The Effect of Tillage System and Rimsulfuron Application on Weed Flora, Arbuscular Mycorrhizal (AM) Root Colonization and Yield of Maize (Zea mays L.)

Bilalis

Triantafyllidis

Karkanis

et al. 2012

Not Bot Hort Agrobot Cluj

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Field experiments were conducted to determine the effects of tillage system and rimsulfuron application on weed flora and growth of maize (Zea mays L. Mitic F1) at a site with no history of pesticide use for the last 5 years. A randomized complete block design was employed with three replicates per treatment (conventional tillage without rimsulfuron application (control), no-tillage with rimsulfuron application (NT+Rim) and conventional tillage with rimsulfuron application (CT+Rim)). The lowest leaf area index, dry weight and yield of maize were recorded in NT+Rim plots. In addition, the highest soil bulk density was determined in NT+Rim plots. Moreover, the rimsulfuron application resulted in significant reduction in the root growth and arbuscular mycorrhizal (AM) colonization. The lowest root biomass, root length density, root surface and AM root colonization was found in CT+Rim plots. The lowest weed number and biomass was also observed at CT+Rim plots. Sustainability yield index (SYI) shown that the maize crop is more stable under conventional tillage compared with no-tillage. Our results indicated that root growth was reduced significant by rimsulfuron application but statistically significant lower maize yield was obtained in no-tillage system.

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Soil conditions and cowpea and maize yield produced by tillage methods in the rainforest zone of Nigeria

Cited by 25 publications

References 2 publications

Tillage and poultry manure effects on soil fertility and sorghum yield in southwestern Nigeria

Tillage and poultry manure effects on soil fertility and sorghum yield in southwestern Nigeria

Evaluation of sweet potato (Ipomoea batatas L.) performance and soil<br>properties under tillage methods and poultry manure levels

The Effect of Tillage System and Rimsulfuron Application on Weed Flora, Arbuscular Mycorrhizal (AM) Root Colonization and Yield of Maize (Zea mays L.)

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