Biomass production and phosphorus retention by catch crops on clayey soils in southern and central Sweden

Liu, Jian; Bergkvist, Göran; Ulén, Barbro

doi:10.1016/j.fcr.2014.11.013

Cited by 39 publications

(29 citation statements)

References 25 publications

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“…All these species accumulated also the highest P amounts, more than 30 kg ha , thereby exceeding what is classically found in literature. Eichler-Löbermann et al (2008) reported that cover crops can take up to 5.5 kg ha −1 of P in the aboveground parts, while Liu et al (2015) showed up to 15 kg ha −1 in the whole plant under very good field conditions. These differences were most likely due to variation in biomass production.…”

Section: Influence Of Plant Traits On Nutrient Uptakementioning

confidence: 99%

Influence of root and leaf traits on the uptake of nutrients in cover crops

et al. 2016

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Aims Cover crops play an important role in soil fertility as they can accumulate large amounts of nutrients. This study aimed at understanding the nutrient uptake capacity of a wide range of cover crops and at assessing the relevance of acquisition strategies. Methods A field experiment was conducted to characterize 20 species in terms of leaf and root traits. Plant traits were related to nutrient concentration and shoot biomass production with a redundancy analysis. Acquisition strategies were identified using a cluster analysis. Results Root systems varied greatly among cover crop species. Five nutrient acquisition strategies were delineated. Significant amounts of nutrients (about 120 kg ha −1 of nitrogen, 30 kg ha −1 of phosphorus and 190 kg ha −1 of potassium) were accumulated by the species in a short period. Nutrient acquisition strategies related to high accumulations of nutrients consisted in either high shoot biomass and root mass and dense tissues, or high nutrient concentrations and root length densities. Species with high root length densities showed lower C/N ratios.Conclusions The same amounts of nutrients were accumulated by groups with different acquisition strategies. However, their nutrient concentrations offer different perspectives in terms of nutrient release for the subsequent crop and nutrient cycling improvement.

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Section: Influence Of Plant Traits On Nutrient Uptakementioning

confidence: 99%

Influence of root and leaf traits on the uptake of nutrients in cover crops

et al. 2016

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“…Studies of Pfertilization efficiency, often associated with pastures, come mainly from Australia (Rose et al 2010a;Simpson et al 2011;McLaughlin et al 2011;Faucon et al 2015). Brazilian studies have emphasized conservation agriculture and acid soils with poor P availability (LeMare et al 1987;Calegari et al 2013;Balota et al 2014;Fageria et al 2016;Varela et al 2017), while Scandinavian researchers have concentrated on P leaching (Liu et al 2015;Aronsson et al 2016). In the USA, cover crops of different species have been investigated (Lal et al 1978), including their effects on mycorrhizal fungi (Galvez et al 1995;Zibilske and Makus 2009;Rick et al 2011;Maltais-Landry 2015), whereas in China and India, studies have often focused on microbial inoculants (Devi et al 2013;Cui et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Hidden miners – the roles of cover crops and soil microorganisms in phosphorus cycling through agroecosystems

et al. 2018

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Background Phosphorus (P) is a limiting nutrient in many agroecosystems and costly fertilizer inputs can cause negative environmental impacts. Cover crops constitute a promising management option for sustainable intensification of agriculture. However, their interactions with the soil microbial community, which is a key driver of P cycling, and their effects on the following crop, have not yet been systematically assessed. Scope We conducted a meta-analysis of published field studies on cover crops and P cycling, focusing on plantmicrobe interactions. Conclusions We describe several distinct, simultaneous mechanisms of P benefits for the main crop. Decomposition dynamics, governed by P concentration, are critical for the transfer of P from cover crop residues to the main crop. Cover crops may enhance the soil microbial community by providing a legacy of increased mycorrhizal abundance, microbial biomass P, and phosphatase activity. Cover crops are generally most effective in systems low in available P, and may access 'unavailable' P pools. However, their effects on P availability are difficult to detect by standard soil P tests, except for increases after the use of Lupinus sp. Agricultural management (i.e. cover crop species selection, tillage, fertilization) can improve cover crop effects. In summary, cover cropping has the potential to tighten nutrient cycling in agricultural systems under different conditions, increasing crop P nutrition and yield.

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“…Farming system (organic or conventional) and catch crops (in particular under the organic system) also have a significant impact on the activity of soil enzymes [18,19]. Catch crops are used to improve soil organic matter content, prevent the leaching of nutrients (predominantly nitrogen and phosphorus), and enhance the activity of soil microbes [20,21].…”

Section: Introductionmentioning

confidence: 99%

Enzymatic Activity of Loess Soil in Organic and Conventional Farming Systems

et al. 2020

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This study was conducted over the period 2017–2019 in Czesławice (central Lublin region, Poland). The aim of the present study was to compare chemical soil quality parameters (soil pH, available P and K, organic carbon, and total nitrogen content) and soil enzymatic activity (dehydrogenase, acid phosphatase, alkaline phosphatase, urease, protease) in organic and conventional farming systems. The experimental design included two crop rotations (organic and conventional) in which identical plant species were grown: sugar beet-spring barley-red clover-winter wheat-oats. The loess soil on which the experiment was conducted was characterized by the grain size distribution of silt loam, and this soil was categorized as good wheat soil complex (soil class II). The experiment was set up as a split-plot design in triplicate in plots with an area of 40 m2. Soil sampling was carried out using a soil auger within an area of 0.20 m2 (from the 0 to 20 cm layer) in each plot during the autumn period. Over the 3-year study period, it was found that the organic system contributed to an increased soil content of organic carbon and total nitrogen. Moreover, a significantly higher soil pH value and a favorable narrow C/N ratio were found under the organic system (regardless of the crop species). Under the conventional system, in turn, a higher soil phosphorus and potassium content was observed. Enzymatic tests of the soil in the five-field crop rotation proved significantly higher activity of all the enzymes studied (in particular that of dehydrogenase, protease, and urease) in the organic system relative to the conventional one, regardless of the crop plant. Among the plants grown in crop rotation, sugar beet, and red clover had the most beneficial effect on the activity of the soil enzymes, followed by oats (especially under the organic system). The activity of the studied enzymes in the organic system was positively correlated (statistically significantly) with favorable soil pH, a higher content of organic C, and total N, and C/N ratio.

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Biomass production and phosphorus retention by catch crops on clayey soils in southern and central Sweden

Cited by 39 publications

References 25 publications

Influence of root and leaf traits on the uptake of nutrients in cover crops

Influence of root and leaf traits on the uptake of nutrients in cover crops

Hidden miners – the roles of cover crops and soil microorganisms in phosphorus cycling through agroecosystems

Enzymatic Activity of Loess Soil in Organic and Conventional Farming Systems

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