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| Moeskops, Bram; -, Sukristiyonubowo; Buchan, David; Sleutel, Steven; Herawaty, Lenita; Husen, Edi; Saraswati, Rasti; Setyorini, Diah; De Neve, Stefaan. |
| We compared the effect of organic and conventional farming practices on soil microbial dynamics in West Java, Indonesia. A secondary forest was included to obtain natural reference values. On the organic farms, soil fertility is maintained mainly with composted organic matter in contrast to conventional farmers who combine fresh manure and chemical fertilizers, and typically apply large amounts of pesticides. Parameters measured were dehydrogenase, β-glucosidase, acid phosphomonoesterase and β-glucosaminidase activity, microbial biomass C (MBC) and microbial community composition by phospholipid fatty acid analysis. A strong negative impact of intensive chemical fertilizer and pesticide use on soil enzyme activities was demonstrated. Dehydrogenase and... |
| Tipo: Journal paper |
Palavras-chave: Soil quality. |
| Ano: 2010 |
URL: http://orgprints.org/17041/1/17041.pdf |
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| Moeskops, Bram; Buchan, David; Sukristiyonubowo, -; De Neve, Stefaan; De Gusseme, Bart; Widowati, Ladiyani Retno; Setyorini, Diah; Sleutel, Steven. |
| We explored the value of ergosterol, phospholipid fatty acid (PLFA) profiles and neutral lipid fatty acid (NLFA) 16:15c as soil quality indicators for the intensive systems of vegetable production in the humid tropical climate of West Java, by comparing organic and conventional management. Additionally, we measured dehydrogenase and -glucosidase activity. A secondary forest was included to obtain reference values under undisturbed conditions. Organic and conventional agriculture, and secondary forest each differed in the composition of the microbial community measured by PLFA profiles. Ergosterol appeared not to be universally applicable as a fungal biomarker and in this respect seemed to be inferior compared to PLFA fungal markers. NLFA 16:15c may... |
| Tipo: Journal paper |
Palavras-chave: Soil quality; Soil biology. |
| Ano: 2012 |
URL: http://orgprints.org/20417/1/Moeskops_et_al_2012.pdf |
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