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Poliennal results on soil N management and maize N nutrition by green manuring

Benincasa, Dr Paolo; Tosti, Dr Giacomo; Boldrini, Dr Arianna; Tei, Prof Francesco and Guiducci, Prof Marcello (2008) Poliennal results on soil N management and maize N nutrition by green manuring. Poster at: Cultivating the Future Based on Science: 2nd Conference of the International Society of Organic Agriculture Research ISOFAR, Modena, Italy, June 18-20, 2008.

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Several field trials were carried out in 5 years in Central Italy to study the effect of green manuring on soil N management and N availability for grain maize as a succeeding crop. Hairy vetch, field bean, rapeseed and barley were grown in autumn-winter as pure crops or mixed in leg-non leg couples. Maize was sown in early spring just after green manure incorporation. The amount of N supplied by green manures, as well as the maize N uptake and the estimated N effect (i.e. the N taken up by maize that actually derives from green manure N) depended on species used, but with a high between-year variability. The N effect at harvest over 3 years was found to depend on the amount of incorporated biomass (DW) and its N content (N%) according to a multiple linear regression (Neff = -3.9*DW + 47.8*N%, R2 = 73%).

EPrint Type:Conference paper, poster, etc.
Type of presentation:Poster
Keywords:green manure, maize, nitrogen, fertilisation
Subjects: Farming Systems > Farm nutrient management
Research affiliation: International Conferences > 2008: IFOAM OWC: Research Track / ISOFAR > 2.2 Nutrient management
Deposited By: Benincasa, Dr. Paolo
ID Code:11581
Deposited On:22 Sep 2008
Last Modified:12 Apr 2010 07:35
Document Language:English
Refereed:Peer-reviewed and accepted
Additional Publishing Information:This paper is published in the conference proceedings:
Neuhoff, Daniel; Halberg, Niels; Alfldi, Thomas; Lockeretz, William; Thommen, Andreas; Rasmussen, Ilse A.; Hermansen, John; Vaarst, Mette; Lck, Lorna; Carporali, Fabio; Jensen, Henning Hgh; Migliorini, Paola and Willer, Helga, Eds. (2008) .Cultivating the Future Based on Science. Proceedings of the Second Scientific Conference of the International Society of Organic Agriculture Research (ISOFAR), held at the 16th IFOAM Organic World Congress in Cooperation with the International Federation of Organic Agriculture Movements (IFOAM) and the Consorzio ModenaBio, 18 . 20 June 2008 in Modena, Italy.. International Society of Organic Agriculture Research (ISOFAR), c/o IOL, DE-Bonn, Research Institute of Organic Agriculture FiBL, CH-Frick. https://orgprints.org/13672 and https://orgprints.org/13674

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