2 research outputs found
Assessment of a decision support system for chemical control of annual ryegrass (Lolium rigidum) in winter cereals
6 páginas figuras y tablas estadÃsticas.Field studies were conducted at five locations in North
and East Spain to evaluate the agronomic, economic and
environmental implications of a decision support system
(LOLIUM-PC) for herbicide control of Lolium rigidum
in winter cereals. The chemical control treatments evaluated
were as follows: (i) LOLIUM-PC-based recommendations,
(ii) full herbicide dose (standard farmer
practice) and (iii) half herbicide dose. Results indicate that
there were no statistically significant differences, within
sites, between treatments with respect to weed density,
crop yield and economic return. On average, LOLIUMPC
resulted in less herbicide application compared with
the full herbicide dose treatment. This also was true in
three of five localities for the half-dose treatment. The
results of this research indicate that LOLIUM-PC
provides a flexible tool for recommending less herbicide
than other herbicide decision systems, adequate weed
control and similar crop yields to those obtained with
the standard farmer practice (full dose) in Spain.Peer reviewe