Green manure and compost effects on N-P dynamics in Mediterranean organic stockless systems

Stockless systems, where plant and animal production are uncoupled, represent a common condition in Mediterranean areas. In organic systems, soil fertility is mainly managed by green manures, whereas composts of plant origin represent suitable soil conditioners. The low P content of these materials,...

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Autores principales:	Ciaccia,C., Ceglie,F., Tittarelli,F., Antichi,D., Carlesi,S., Testani,E., Canali,S.
Lenguaje:	English
Publicado:	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo 2017
Materias:	Enriched compost rock phosphate surface balance nutrient use efficiency
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000300015
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spelling	oai:scielo:S0718-951620170003000152017-10-13Green manure and compost effects on N-P dynamics in Mediterranean organic stockless systemsCiaccia,C.Ceglie,F.Tittarelli,F.Antichi,D.Carlesi,S.Testani,E.Canali,S. Enriched compost rock phosphate surface balance nutrient use efficiency Stockless systems, where plant and animal production are uncoupled, represent a common condition in Mediterranean areas. In organic systems, soil fertility is mainly managed by green manures, whereas composts of plant origin represent suitable soil conditioners. The low P content of these materials, together with the shortage of animal waste availability, determine potential nutrient depletion overtime and, in calcareous soils, P mining conditions. In a two-year field experiment in Central Italy, the effect of green manure vetch (Vicia villosa) (GM+) was compared with a control left fallow (GM-), combined with P-based fertilizers (F) on organic maize (Zea mays). Yields and N-P dynamics were evaluated by direct measurements, nutrient balance and efficiency index. N balance was higher than in GM+ GM- (+71.8 and -23.6 kg N ha-1, respectively). P enriched compost with RP (rock-phosphate) (EP), showed significant improvement in P use efficiency (meanly +34%) than other treatments (unfertilized control (RP), not P enriched compost (NEP)) and P equilibrium in the short run. On the other hand, P-fertilizers and maize residues soil incorporation determined P surplus in a long perspective (up to +10 kg P ha-1). Results emphasize the possibility of P reintegration in stockless organic systems without animal wastes.info:eu-repo/semantics/openAccessChilean Society of Soil Science / Sociedad Chilena de la Ciencia del SueloJournal of soil science and plant nutrition v.17 n.3 20172017-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000300015en10.4067/S0718-95162017000300015
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Enriched compost rock phosphate surface balance nutrient use efficiency
spellingShingle	Enriched compost rock phosphate surface balance nutrient use efficiency Ciaccia,C. Ceglie,F. Tittarelli,F. Antichi,D. Carlesi,S. Testani,E. Canali,S. Green manure and compost effects on N-P dynamics in Mediterranean organic stockless systems
description	Stockless systems, where plant and animal production are uncoupled, represent a common condition in Mediterranean areas. In organic systems, soil fertility is mainly managed by green manures, whereas composts of plant origin represent suitable soil conditioners. The low P content of these materials, together with the shortage of animal waste availability, determine potential nutrient depletion overtime and, in calcareous soils, P mining conditions. In a two-year field experiment in Central Italy, the effect of green manure vetch (Vicia villosa) (GM+) was compared with a control left fallow (GM-), combined with P-based fertilizers (F) on organic maize (Zea mays). Yields and N-P dynamics were evaluated by direct measurements, nutrient balance and efficiency index. N balance was higher than in GM+ GM- (+71.8 and -23.6 kg N ha-1, respectively). P enriched compost with RP (rock-phosphate) (EP), showed significant improvement in P use efficiency (meanly +34%) than other treatments (unfertilized control (RP), not P enriched compost (NEP)) and P equilibrium in the short run. On the other hand, P-fertilizers and maize residues soil incorporation determined P surplus in a long perspective (up to +10 kg P ha-1). Results emphasize the possibility of P reintegration in stockless organic systems without animal wastes.
author	Ciaccia,C. Ceglie,F. Tittarelli,F. Antichi,D. Carlesi,S. Testani,E. Canali,S.
author_facet	Ciaccia,C. Ceglie,F. Tittarelli,F. Antichi,D. Carlesi,S. Testani,E. Canali,S.
author_sort	Ciaccia,C.
title	Green manure and compost effects on N-P dynamics in Mediterranean organic stockless systems
title_short	Green manure and compost effects on N-P dynamics in Mediterranean organic stockless systems
title_full	Green manure and compost effects on N-P dynamics in Mediterranean organic stockless systems
title_fullStr	Green manure and compost effects on N-P dynamics in Mediterranean organic stockless systems
title_full_unstemmed	Green manure and compost effects on N-P dynamics in Mediterranean organic stockless systems
title_sort	green manure and compost effects on n-p dynamics in mediterranean organic stockless systems
publisher	Chilean Society of Soil Science / Sociedad Chilena de la Ciencia del Suelo
publishDate	2017
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-95162017000300015
work_keys_str_mv	AT ciacciac greenmanureandcomposteffectsonnpdynamicsinmediterraneanorganicstocklesssystems AT ceglief greenmanureandcomposteffectsonnpdynamicsinmediterraneanorganicstocklesssystems AT tittarellif greenmanureandcomposteffectsonnpdynamicsinmediterraneanorganicstocklesssystems AT antichid greenmanureandcomposteffectsonnpdynamicsinmediterraneanorganicstocklesssystems AT carlesis greenmanureandcomposteffectsonnpdynamicsinmediterraneanorganicstocklesssystems AT testanie greenmanureandcomposteffectsonnpdynamicsinmediterraneanorganicstocklesssystems AT canalis greenmanureandcomposteffectsonnpdynamicsinmediterraneanorganicstocklesssystems
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Green manure and compost effects on N-P dynamics in Mediterranean organic stockless systems

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