Stratification of nutrients in soil for different tillage regimes and cotton rotations

Wright, Alan L.; Hons, Frank M.; Lemon, Robert G.; McFarland, Mark L.; Nichols, Robert L.

doi:10.1016/j.still.2007.02.005

Cited by 74 publications

(53 citation statements)

References 18 publications

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“…Unlike the other studied trace elements, the concentration of available Mn was stratified both under MT and (to a lesser extend) CT as also found Franzluebbers and Hons (1996) and Wright et al (2007). In our plots, Mn stratification could be due to Mn correlation with SOC levels (r=0.458, P< 0.01; n=212) or to losses from the subsurface soil layers because the water table was near the soil surface several months a year, as indicated by the soil type (Gleyic Phaeozem), and Mn solubility increases under acidic and reducing conditions (Mortvedt, 1983).…”

Section: Soil Available Trace Elementssupporting

confidence: 54%

“…This result was due to the different pattern of available Fe with depth: a progressive decrease under MT, as also found Lavado et al (1999), and homogeneous levels due to ploughing under CT. In the same way, Wright et al (2007) indicated that the higher macro-and micronutrient levels in surface relative to subsurface soils were likely a result of greater decomposition of soil organic matter and crop residues, releasing inorganic nutrients and contributing to accumulation at 0-15 cm.…”

Section: Soil Available Trace Elementsmentioning

confidence: 92%

“…As a consequence, the interaction of soil with crop residues and fertilizers decreased, leading to changes in the distribution of nutrients along the soil profile, with higher levels in the topsoil (Edwards et al, 1992;Franzluebbers and Hons, 1996;López-Fando and Pardo, 2009;Martín-Rueda et al, 2007;Wright et al, 2007). Moreover, timing of nutrient release was also affected (Houx et al, 2011) with possible effects on nutrient availability to plants and, therefore, on nutrient disequilibrium and fertilizer requirements (Holanda et al, 1998;Yin and Vyn, 2004).…”

Section: Introductionmentioning

confidence: 99%

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Availability and uptake of trace elements in a forage rotation under conservation and plough tillage

García‐Marco

Gómez-Rey

González-Prieto

2014

Soil and Tillage Research

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After 14 years under conventional plough tillage (CT) or conservation minimum tillage (MT), the soil available Al, Fe, Mn, Cu and Zn (0-5, 5-15 and 15-30 cm layers) and their plant uptake were evaluated during two years in a ryegrass-maize forage rotation in NW Spain (temperate-humid region). The three-way ANOVA showed that trace element concentrations in soil were mainly influenced by sampling date, followed by soil depth and tillage system (35-73 %, 7-58 % and 3-11 % of variance explained, respectively). Excepting for Fe (CT) and Al (CT and MT), the elemental concentrations decreased with depth, the stratification being stronger under MT. For soil available Al, Fe, Mn and Cu, the concentrations were higher in CT than in MT (5-15 and 15-30 cm layers) or were not affected by tillage system (0-5 cm). In contrast, the available Zn contents were higher in MT than CT at the soil surface and did not differ in deeper layers. The concentration of Al, Fe and Cu in crops were not influenced by tillage system, which explain 22 % of Mn variance in maize (CT > MT in the more humid year) and 18 % of Zn variance in ryegrass (MT > CT in both years). However, in the summer crop (maize) the concentrations of Fe, Mn and Zn tended to be higher in MT than in CT under drought conditions, while the opposite was true in the year without water limitation. Therefore, under the studied conditions of climate, soil, tillage and crop rotation, little influence of tillage system on crop nutritive value would be expected. To minimize the potential deficiency of Zn (maize) and Cu (maize and ryegrass) on crop yields the inclusion of these micro-nutrients in fertilization schedule is recommended, as well as liming to alleviate Al toxicity on maize crops.

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Section: Soil Available Trace Elementssupporting

confidence: 54%

Section: Soil Available Trace Elementsmentioning

confidence: 92%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Availability and uptake of trace elements in a forage rotation under conservation and plough tillage

García‐Marco

Gómez-Rey

González-Prieto

2014

Soil and Tillage Research

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“…Additionally, residue retention can increase the proportion of SOC ) with a lower decomposition degree and higher C : N ratio (Yamashita et al, 2006). Under AC2, the incorporation of residues into the soil can be uniformly distributed with depths up to 20 cm, or more than 20 cm (Sá and Lal, 2009;Wright et al, 2007). In contrast, under AC1 and V the input of residues is restricted to the topsoil.…”

Section: Soil Organic Carbon (Soc) Total Nitrogen (Tn) and C : N Ratiomentioning

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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“…Accordingly, it has been found that minimum tillage in comparison with conventional tillage increased the concentration of plant nutrients like P and K in the surface layers of soil but decreased concentrations in deeper soil layers (Shear and Moschler, 1969;Lal, 1976;Juo and Lal, 1979;Ismail et al, 1994;Du Preez et al, 2001;Wright et al, 2007). Robbins and Voss (1991) for example reported that extractable P and exchangeable K in the 0-5 cm layer of minimum tilled soil were on average 3.5 times higher than in the 5-15 cm layer.…”

Section: Introductionmentioning

confidence: 99%

Effect of tillage system and nitrogen fertilization on the pH, extractable phosphorus and exchangeable potassium of Nitisols in Western Ethiopia

Tolessa¹,

Preez²,

Ceronio³

2014

Afr. J. Agric. Res.

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Maize production in Western Ethiopia is constrained by non-sustainable cropping practices, particularly repeated conventional tillage and insufficient N fertilization. A change in these cropping practices have usually a profound influence on soil chemical properties of which some may affect crop performance. Field trials were therefore conducted to determine the integrated effects of tillage system and nitrogen fertilization on the pH, extractable phosphorus and exchangeable K of Nitisols at five sites using maize as test crop from 2000 to 2004 in Western Ethiopia. Three tillage systems (MTRR = minimum tillage with residue retention, MTRV = minimum tillage with residue removal and CT = conventional tillage) and three N levels (the recommended rate and 25% less and 25% more than this rate) were combined in factorial arrangement with three replications. After five years the influence of the tillage systems on pH, extractable P and exchangeable K was confined to the upper 0-7.5 cm. The soil was acidified much more with MTRR than with either MTRV or CT. However, MTRR resulted in higher contents of extractable P and exchangeable K than MTRV and CT. Application of N fertilization for five consecutive years significantly decreased pH irrespective of tillage system. Neither extractable P nor exchangeable K were affected by N fertilization. The enhanced soil acidification that coincides with MTRR may impact negatively on maize production in the long run without a proper liming program. Liming is currently not a common practice in Western Ethiopia because of resource poor farmers. This aspect should be taken into account when the replacement of CT with MTRR is recommended. The findings of this study could be useful to other highland regions in Africa where cropping on Nitisols is common.

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Stratification of nutrients in soil for different tillage regimes and cotton rotations

Cited by 74 publications

References 18 publications

Availability and uptake of trace elements in a forage rotation under conservation and plough tillage

Availability and uptake of trace elements in a forage rotation under conservation and plough tillage

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

Effect of tillage system and nitrogen fertilization on the pH, extractable phosphorus and exchangeable potassium of Nitisols in Western Ethiopia

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