2016
DOI: 10.5194/we-16-3-2016
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Effects of agricultural practices on soil and microbial biomass carbon, nitrogen and phosphorus content: a preliminary case study

Abstract: Abstract. In this study we assessed the C : N : P ratios in soil and soil microbial biomass subject to conventional farming and three different organic farming practices. The results showed that microbial biomass was P-limited in soils subject to conventional farming and to organic farming with alfalfa green manure. Organic farming with compost amendment showed the best results in terms of microbial biomass carbon, nitrogen and phosphorus (CNP).

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Cited by 7 publications
(2 citation statements)
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“…Instead of soil organic matter, microbial biomass is also very important in maintaining soil organic status through its action as a source and sink of nutrient availability. Organic farming where plenty of organic matter is applied shows the best amount of microbial biomass compared to those obtained from intensive farming with no organic matter application (Amaral and Abelho, 2016). The labile fraction of organic matters is the result of decomposition and mineralization processes of organic matter where these processes are very affected by the quality of organic matter, pH, moisture content and temperature of soils, as well as altitude (Handayanto et al, 1997;Griffin and Honeycutt, 2000;Cookson et al, 2002;Samuel et al, 2002;Bonito et al, 2003;Kyveryga et al, 2004;Agehara and Warncke, 2005;Fritschi et al, 2005).…”
Section: Introductionmentioning
confidence: 99%
“…Instead of soil organic matter, microbial biomass is also very important in maintaining soil organic status through its action as a source and sink of nutrient availability. Organic farming where plenty of organic matter is applied shows the best amount of microbial biomass compared to those obtained from intensive farming with no organic matter application (Amaral and Abelho, 2016). The labile fraction of organic matters is the result of decomposition and mineralization processes of organic matter where these processes are very affected by the quality of organic matter, pH, moisture content and temperature of soils, as well as altitude (Handayanto et al, 1997;Griffin and Honeycutt, 2000;Cookson et al, 2002;Samuel et al, 2002;Bonito et al, 2003;Kyveryga et al, 2004;Agehara and Warncke, 2005;Fritschi et al, 2005).…”
Section: Introductionmentioning
confidence: 99%
“…Enhanced soil fertility and higher biodiversity found in organic plots may render these systems less dependent on external input (Mäder et al, 2002). Organic farming with compost amendment showed the best results in terms of microbial biomass carbon, nitrogen and phosphorus (CNP) (Amaral and Abelho, 2016). Organic farming has been shown to favor soil biota in comparison with intensive farming (Kallenbach and Grandy, 2011;Santos et al, 2012).…”
Section: Introductionmentioning
confidence: 99%