Weed Research (2011) 51, 304-309

J.L. Gonzalez-Andujar, C. Fernandez-Quintanilla, F. Bastida, R. Calvo, J. Izquierdo and J.A. Lezaun (2011)
Assessment of a decision support system for chemical control of annual ryegrass (Lolium rigidum) in winter cereals
Weed Research 51 (3), 304-309
Abstract: 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, LOLIUM-PC 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.
(The abstract is excluded from the Creative Commons licence and has been copied with permission by the publisher.)
Link to article at publishers website
Database assignments for author(s): Jose L. Gonzalez-Andujar, Jordi Izquierdo

Research topic(s) for pests/diseases/weeds:
control - general
thresholds/decision-support systems

---

Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Lolium rigidum (weed)		Spain (continental)