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| Canali, Stefano; Emanuela, Di Bartolomeo; Alessandra, Trinchera; Luigi, Nisini; Fabio, Tittarelli; Francesco, Intrigliolo; Giancarlo, Roccuzzo; Maria Luisa, Calabretta. |
| Twenty-six soil samples were collected from 13 paired orchards (organically vs. conventionally managed) homogeneous for age, rootstock and cultivars, belonging to the Eastern Sicily Organic Citrus farm Network. The soil quality was evaluated by chemical and biochemical indicators. The total organic C, humification parameters and isoelectric focusing of extracted organic matter were measured to quantify the size of relevant soil C pools. In addition, C turnover was evaluated by determining microbial C mineralization, C microbial biomass and by calculating the mineralization and metabolic quotient (qCO2). The results obtained demonstrated that organic citrus soils were characterized by a general increase in all the organic matter pools, which means a... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Crop combinations and interactions; Nutrient turnover; Farm nutrient management. |
| Ano: 2009 |
URL: http://orgprints.org/28208/1/Soil%20Use%20and%20Management%20_%20survey%20of%20citrus%20orchards.pdf |
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| Alessandra, Trinchera; Andrea, Marcucci; Marco, Renzaglia; Elvira, Rea. |
| Many naturally-derived products are used as growth promoters or biostimulants on vegetables, even if their mechanisms of action are not still now completely clarified. Among them, seaweeds and seaweed products are inserted as admissible organic fertilizers in the Annex I of the Reg. (EC) No. 889/2008, even if their biostimulant properties are not recognized in organic farming. After a previous bioassay on maize germination for defining the optimal water dilution ratios of the filtrate seaweed extract (FSE), in the present research we applied the FSE at two diluted doses to a greenhouse organic lettuce, for assessing its biostimulant effect on vegetable growth and nutrient uptake. The greenhouse pot trials were conducted on Lactuca sativa L., by applying... |
| Tipo: Conference paper, poster, etc. |
Palavras-chave: Vegetables. |
| Ano: 2014 |
URL: http://orgprints.org/23328/1/23328_MM.pdf |
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