NDLI: Faba bean grain yield, N$_{2}$ fixation, and weed infestation in a long-term tillage experiment under rainfed Mediterranean conditions

Content Provider	Springer Nature Link
Author	Giambalvo, Dario Ruisi, Paolo Saia, Sergio Miceli, Giuseppe Frenda, Alfonso Salvatore Amato, Gaeta
Copyright Year	2012
Abstract	Long-term experiments could provide valuable information to determine the effects of an agronomic practice on agro-ecosystem productivity and stability. This study evaluated the long-term (18-year) impact of different tillage systems on faba bean (Vicia faba L.) productivity, including weed and broomrape incidence, and N$_{2}$ fixation.The experiment was carried out on a Vertisol under rainfed Mediterranean conditions. It was set up as a strip-plot design. The tillage systems were: conventional tillage (CT) with moldboard plow, reduced tillage (RT) with chisel plow, and no tillage (NT). Nitrogen fixation was estimated over 2 years in the final phase of the experiment using the $^{15}$N isotope dilution technique.On average, grain yield was 31 % and 23 % higher under NT than under CT and RT, respectively; however, the effect of tillage varied by year. The yield advantage of NT over CT was pronounced when rainfall was scarce. Average broomrape infestation was lower under NT than under CT, but a reduction in tillage intensity resulted in an increase in weed biomass. Tillage had no effect on weed richness, but the use of the NT technique progressively altered the weed composition by determining conditions conducive to the growth of a few weed species that are hard to control. Nitrogen fixation was strongly influenced by tillage, being higher under NT than under CT.The results suggest that NT is a valuable option in the rainfed cereal–legume rotation systems of Mediterranean environments; however, the success of NT technique depends on the use of effective weed control strategies.
Starting Page	215
Ending Page	227
Page Count	13
File Format	PDF
ISSN	0032079X
Journal	Plant and Soil
Volume Number	360
Issue Number	1-2
e-ISSN	15735036
Language	English
Publisher	Springer Netherlands
Publisher Date	2012-04-14
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Vicia faba No tillage Weeds Broomrapes Plant Sciences Plant Physiology Ecology Soil Science & Conservation
Content Type	Text
Resource Type	Article
Subject	Soil Science Plant Science

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