Long-term tillage and crop rotation determines the mineral nutrient distributions of some elements in a Vertic Epiaqualf

Houx, James H.; Wiebold, William J.; Fritschi, Felix B.

doi:10.1016/j.still.2010.11.003

Cited by 47 publications

(52 citation statements)

References 27 publications

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“…NT resulted in 0-10 cm depth in a 1.25-fold increase of P and in a 2.90-fold the increase of K compared to MP; in 10-20 cm depth, increase was 1.14-fold for P and 1.38-fold for K. Contrary to that, P and K levels were 23% and 31%, respectively, lower in NT than in MP in 30-40 cm depth. Similar observations are reported by Houx et al (2011) for the upper soil layer in an 18-year old tillage experiment on a silt loam; but contrary to our findings, no differences between MP and NT below plough depth were reported.…”

Section: Resultssupporting

confidence: 81%

“…Ecological benefits include the increase of soil organic carbon (SOC), biotic activity, soil porosity, agro-ecological diversity and less soil erosion and carbon emissions (due to less fuel consumption) (Derpsch et al 2010). Soil tillage is influencing soil chemical characteristics, carbon sequestration and nutrient distribution (West and Post 2002, López-Fando and Pardo 2009, Houx et al 2011). On a short-term scale, tillage operations mainly affect nutrient dynamics through altering of physical properties of the soil and by incorporating crop residues and mineral or organic fertilizers.…”

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confidence: 99%

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Soil chemical properties as affected by tillage and crop rotation in a long-term field experiment

Neugschwandtner

Liebhard

Kaul

et al. 2014

Plant Soil Environ.

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Long-term field experiments are important for explaining tillage and rotation effects on soil fertility and to develop sustainable nutrient management strategies. An experiment was established in 1996 in Raasdorf (Austria) on chernozem with four tillage treatments (mouldboard ploughing (MP); no-till; deep conservation tillage and shallow conservation tillage) and two crop rotations. Soil samples were taken in November 2003 from 10 cm soil layers down to 40 cm to assess the effects on pH, carbonate content (CaCO 3 ), soil organic carbon (SOC), total nitrogen (N t ), potentially mineralizable N (PMN) and plant-available phosphorus (P) and potassium (K). Soil pH and CaCO 3 were not affected by soil tillage. SOC, N t , PMN, P and K increased in the uppermost soil layer with reduced tillage intensity. SOC, N t , P and K were more evenly distributed in MP whereas a generally higher decline downwards the soil profile was observed with lower tillage intensity. Lower tillage intensity resulted in a decrease of P and K in 30-40 cm. Rotation affected pH and K distribution in the soil whereas the other parameters were not affected.

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Section: Resultssupporting

confidence: 81%

mentioning

confidence: 99%

Soil chemical properties as affected by tillage and crop rotation in a long-term field experiment

Neugschwandtner

Liebhard

Kaul

et al. 2014

Plant Soil Environ.

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“…In a study of tilling no-till soils in Nebraska, the only treatment that was shown to significantly decrease surface soil P concentrations and minimize P stratification was the moldboard plow (Garcia et al 2007). A corn-soybean rotation that was tilled resulted in lower P concentrations in the 0 to 5 cm soil depth than the no-till treatment, whereas there were greater P concentrations in the 5 to 10 cm soil depth from the tilled soil than the no-till (Houx et al 2011). In a four-year study of banding P fertilizers at 13 to 18 cm (5 to 7 in) below the surface, P stratification occurred in tilled and no-tilled soils near the surface (Mallarino and Borges 2006).…”

Section: Resultsmentioning

confidence: 83%

Phosphorus fertilization, soil stratification, and potential water quality impacts

Smith¹,

Huang²,

Haney³

2017

Journal of Soil and Water Conservation

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Water quality experts have suggested that no-till induces phosphorus (P) stratification, which may exacerbate soluble P (SP) runoff from agricultural fields, contributing to eutrophication. Conservationists have been concerned about increased SP loading to Lake Erie, which has been partially blamed on adoption of no-till and the concomitant P stratification of no-till soils. This study was conducted to provide better insight into the potential link between P stratification from no-till soils and P losses via runoff with the objective of exploring P fertilization strategies on P stratification and P runoff from a corn (Zea mays L.)-soybean (Glycine max L.) rotation. Plots were established with nine treatments, including unfertilized, diammonium phosphate (DAP) applications, monoammonium phosphate (MAP) applications, surface applied, injecting fertilizer or tilling fertilizer in, and the use of cover crops. Fertilizer applications were made at 24.4 kg P ha -1 (21.8 lb P ac -1) every other year or at 9.6 kg P ha -1 (8.7 lb P ac -1 ) every year. Disking, which was intended to minimize P stratification, resulted in the greatest stratification, with significantly higher water SP and Mehlich 3 P in the 0 to 5 cm (0 to 2 in) soil layer compared to the other treatments. There were no differences in SP or total P (TP) runoff from rainfall simulations between fertilizer source (MAP versus DAP) or fertilizer rate (annual versus biennial). The highest SP concentrations observed were from DAP applied to cover crops at the high application rate (24.4 kg P ha -1 applied every other year). This may suggest cover crops are not the ideal practice to decrease SP losses from agricultural fields. Incorporation of fertilizer reduced SP but increased erosion and could potentially increase TP loss. Injecting liquid fertilizer (polyphosphate [Poly]) at the time of planting resulted in lower SP and TP loads than surface applied fertilizers. We encourage other researchers to confirm these results at the field-to-watershed scale to ensure there are not unintended consequences of adopting this fertilization strategy. Further, fertilizer dealers, crop consultants, and farmers should be encouraged to consider liquid fertilizer applications as one option to minimize P losses. Key words: cover crops-fertilizer management-phosphorus stratification-runoffIn the 1990s, Lake Erie was held up as a success story for the Clean Water Act, as the total phosphorus (TP) load had declined below an 11,000 Mg (12,100 tn) loading target due in large part to P reductions from point sources as well as from nonpoint sources through improved management of agricultural lands (Richards and Baker 1993). However, in recent years P losses from agricultural fields in the Western Lake Erie Basin (WLEB) have been identified as a primary contributor to resurgent harmful and nuisance algal blooms (HNABs) in Lake Erie (Chaffin et al. 2011). While there has not been any significant change in TP loading since the mid-1990s, there has been an increase in soluble P (S...

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“…Thus, the use of plant species more efficient in soil nutrients use and tillage systems that provide accumulation of nutrients in labile forms, are basic prerequisites to sustainable crop production systems. The dynamics of essential nutrients and toxic elements are modified by the no-tillage (NT) system when compared to the conventional tillage (CT) system (Houx et al, 2011). Generally, fertilizers are applied on the soil surface layer, with the possibility to broadcast in the NT.…”

Section: Introductionmentioning

confidence: 99%

Long-term effect of different soil management systems and winter crops on soil acidity and vertical distribution of nutrients in a Brazilian Oxisol

Calegari

Tiecher

Hargrove

et al. 2013

Soil and Tillage Research

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Long-term tillage and crop rotation determines the mineral nutrient distributions of some elements in a Vertic Epiaqualf

Cited by 47 publications

References 27 publications

Soil chemical properties as affected by tillage and crop rotation in a long-term field experiment

Soil chemical properties as affected by tillage and crop rotation in a long-term field experiment

Phosphorus fertilization, soil stratification, and potential water quality impacts

Long-term effect of different soil management systems and winter crops on soil acidity and vertical distribution of nutrients in a Brazilian Oxisol

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