Conservation tillage: Short- and long-term effects on soil carbon fractions and enzymatic activities under Mediterranean conditions

Melero, Sebastiana; López-Garrido, R.; Murillo, J.M.; Moreno, F.

doi:10.1016/j.still.2009.04.001

Cited by 170 publications

(93 citation statements)

References 32 publications

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“…This suggests a beneficial influence of the RT treatment on the soil environment in comparison with the CT treatment. It has been suggested that a ploughless tillage system creates a less oxidative biochemical environment than plough-based tillage and provides better protection and stabilization of SOM through the activity of microorganisms and soil enzymes (Melero et al, 2009(Melero et al, , 2011.…”

Section: Resultsmentioning

confidence: 99%

Effects of different soil management practices on soil properties and microbial diversity

Gajda¹,

Czyż²,

Dexter³

et al. 2018

International Agrophysics

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The effects of different tillage systems on the properties and microbial diversity of an agricultural soil was investigated. In doing so, soil physical, chemical and biological properties were analysed in 2013-2015, on a long-term field experiment on a loamy sand at the IUNG-PIB Experimental Station in Grabów, Poland. Winter wheat was grown under two tillage treatments: conventional tillage using a mouldboard plough and traditional soil tillage equipment, and reduced tillage based on soil crushing-loosening equipment and a rigid-tine cultivator. Chopped wheat straw was used as a mulch on both treatments. Reduced tillage resulted in increased water content throughout the whole soil profile, in comparison with conventional tillage. Under reduced tillage, the content of readily dispersible clay was also reduced, and, therefore, soil stability was increased in the toplayers, compared with conventional tillage. In addition, the beneficial effects of reduced tillage were reflected in higher soil microbial activity as measured with dehydrogenases and hydrolysis of fluorescein diacetate, compared with conventional tillage. Moreover, the polimerase chain reaction – denaturing gradient gel electrophoresis analysis showed that soil under reduced till-age had greater diversity of microbial communities, compared with conventionally-tilled soil. Finally, reduced tillage increased organic matter content, stability in water and microbial diversity in the top layer of the soil.

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Section: Resultsmentioning

confidence: 99%

Effects of different soil management practices on soil properties and microbial diversity

Gajda¹,

Czyż²,

Dexter³

et al. 2018

International Agrophysics

View full text Add to dashboard Cite

show abstract

“…The largest increments were observed in the β-glucosidase enzyme. These results agreed with Melero et al (2009) and De la Horra et al (2003) which also found that due to the involvement of this enzyme with the transformation of organic matter, the superficial layer had higher β-glucosidase activity.…”

Section: Resultssupporting

confidence: 89%

“…Most of the correlations were found also in other long-term experiments (Acosta-Martinez et al, 2003;Balota et al, 2014a;Melero et al, 2009). The accumulation of organic matter in the upper soil layer by CC and minimum tillage, and also the contribution of the main crops (root exudates, decomposition of roots and crop residues) stimulated the microbial community and enhanced the enzymes activity (Balota et al, 2004).…”

Section: Resultssupporting

confidence: 69%

Biological and other soil parameters response to winter cover crops in a mediterranean irrigated system

González¹

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“…A similar result was obtained by Diekow et al, 2005. Franzluebbers andArshad (1996) and Melero et al (2009) suggest that minimum tillage can increase SOC under longer experimental duration. Our results are in agreement with this because in AC1 increased SOC stock and the LUC and tillage for the long term (46 years) reduced SOC stock.…”

Section: The Effect Of Luc On Soc Stock Tn and C : N Ratiomentioning

confidence: 98%

“…Therefore, C sequestration into soils is one of the most important ecosystem services because of its role in climate regulation (IPCC, 2007). Intensification of agriculture and/or transformation of conventional tillage (CT) practices, may cause enormous losses of soil organic carbon (SOC), thus inducing an increase in soil erosion and a breakage of soil structure (Melero et al, 2009). Land use change (LUC) is considered the second greatest cause of C emissions after fuel consumption (Watson et al, 2000).…”

Section: Introductionmentioning

confidence: 99%

Impacts of land use change in soil carbon and nitrogen in a Mediterranean agricultural area (Southern Spain)

2013

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Abstract. The agricultural Mediterranean areas are dedicated to arable crops (AC), but in the last decades, a significant number of AC has led to a land use change (LUC) to olive grove (OG) and vineyards (V). A field study was conducted to determine the long-term effects (46 years) of LUC (AC by OG and V) and to determine soil organic carbon (SOC), total nitrogen (TN), C : N ratio and their stratification across the soil entire profile, in Montilla-Moriles denomination of origin (D.O.), in Calcic-Chromic Luvisols (LVcc/cr), an area under semiarid Mediterranean conditions. The experimental design consisted of studying the LUC on one farm between 1965 and 2011. Originally, only AC was farmed in 1965, but OG and V were farmed up to now (2011). This LUC principally affected the horizon thickness, texture, bulk density, pH, organic matter, organic carbon, total nitrogen and C : N ratio. The LUC had a negative impact in the soil, affecting the SOC and TN stocks. The conversion from AC to V and OG involved the loss of the SOC stock (52.7 % and 64.9 % to V and OG respectively) and the loss of the TN stock (42.6% and 38.1 % to V and OG respectively). With respect to the stratification ratios (SRs), the effects were opposite; 46 years after LUC increased the SRs (in V and OG) of SOC, TN and C : N ratio.

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Conservation tillage: Short- and long-term effects on soil carbon fractions and enzymatic activities under Mediterranean conditions

Cited by 170 publications

References 32 publications

Effects of different soil management practices on soil properties and microbial diversity

Effects of different soil management practices on soil properties and microbial diversity

Biological and other soil parameters response to winter cover crops in a mediterranean irrigated system

Impacts of land use change in soil carbon and nitrogen in a Mediterranean agricultural area (Southern Spain)

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