This study aimed to evaluate the productivity of Arundo donax under good water and N availability coming from non-conventional sources, in different Italian environments (Padova and Bologna in the north, Reggio Calabria and Catania in the south) in relation to three harvest periods (autumn; mid-winter; late-winter). In the northern locations A. donax had already reached maximum productivity the year after transplanting, with 85 and 98 t ha(-1) of dry matter at Padova and Bologna, respectively. At Reggio Calabria and Catania a further biomass increase was obtained from the second to third year of cultivation, when production was 62 t ha(-1) and 51 t ha(-1), respectively. The average dry matter production was 74, 66 and 65 t ha(-1) with autumn, mid-winter and late-winter harvesting, respectively. Under N input ranging from 225 to 329 kg ha(-1) year(-1) at the different locations, the apparent N balance (input-output) was negative except in Catania indicating a great potential of A. donax to provide high N uptake, which would be a useful feature in environments under the European Nitrates Directive. (c) 2013 Elsevier B.V. All rights reserved.
BORIN M., BARBERA A.C., MILANI M., MOLARI G., ZIMBONE S.M., TOSCANO A. (2013). Biomass production and N balance of giant reed (Arundo donax L.) under high water and N input in Mediterranean environments. EUROPEAN JOURNAL OF AGRONOMY, 51, 117-119 [10.1016/j.eja.2013.07.005].
Biomass production and N balance of giant reed (Arundo donax L.) under high water and N input in Mediterranean environments
MOLARI, GIOVANNI;TOSCANO, ATTILIO
2013
Abstract
This study aimed to evaluate the productivity of Arundo donax under good water and N availability coming from non-conventional sources, in different Italian environments (Padova and Bologna in the north, Reggio Calabria and Catania in the south) in relation to three harvest periods (autumn; mid-winter; late-winter). In the northern locations A. donax had already reached maximum productivity the year after transplanting, with 85 and 98 t ha(-1) of dry matter at Padova and Bologna, respectively. At Reggio Calabria and Catania a further biomass increase was obtained from the second to third year of cultivation, when production was 62 t ha(-1) and 51 t ha(-1), respectively. The average dry matter production was 74, 66 and 65 t ha(-1) with autumn, mid-winter and late-winter harvesting, respectively. Under N input ranging from 225 to 329 kg ha(-1) year(-1) at the different locations, the apparent N balance (input-output) was negative except in Catania indicating a great potential of A. donax to provide high N uptake, which would be a useful feature in environments under the European Nitrates Directive. (c) 2013 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.