Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
MANURE, TILLAGE, AND CROP-ROTATION - EFFECTS ON RESIDUAL WEED INTERFERENCE IN SPRING BARLEY CROPPING SYSTEMS
Autore:
STEVENSON FC; LEGERE A; SIMARD RR; ANGERS DA; PAGEAU D; LAFOND J;
Indirizzi:
AGR & AGRI FOOD CANADA SASKATOON SK CANADA UNIV SASKATCHEWAN,DEPT CROP SCI & PLANT ECOL SASKATOON SK S7N 5A8 CANADA AGR & AGRI FOOD CANADA,RES CTR ST FOY PQ G1V 2J3 CANADA AGR & AGRI FOOD CANADA,RES FARM NORMANDIN PQ G8M 4K3 CANADA
Titolo Testata:
Agronomy journal
fascicolo: 4, volume: 90, anno: 1998,
pagine: 496 - 504
SICI:
0002-1962(1998)90:4<496:MTAC-E>2.0.ZU;2-Z
Fonte:
ISI
Lingua:
ENG
Soggetto:
CONSERVATION TILLAGE; MANAGEMENT; DYNAMICS; NITROGEN; COMMUNITIES; STRATEGIES; LEGUME; YIELD; CORN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
32
Recensione:
Indirizzi per estratti:
Citazione:
F.C. Stevenson et al., "MANURE, TILLAGE, AND CROP-ROTATION - EFFECTS ON RESIDUAL WEED INTERFERENCE IN SPRING BARLEY CROPPING SYSTEMS", Agronomy journal, 90(4), 1998, pp. 496-504

Abstract

Effects of management practices on crop growth and yields may or may not be mediated through crop-weed interactions. Our objective was to detect and confirm a relationship between the influence of crop management factors on spring barley (Hordeum vulgare L.) and the potential occurrence of crop-weed interference, A field study was established on aNormandin clay (fine, mixed, frigid Humic Cryaquept) at Normandin in Quebec to investigate the effects of crop rotation, tillage (chisel plow, CP; moldboard plow, MP), and nutrient source on midseason aboveground dry weight and seed yield of barley and residual weed populations. Barley-weed interference was detected using ANOVA, principal components analysis, and analysis of covariance, A reduction in midseason dry weight (36%) and seed yield (59%) of barley in the CP relative to the MP treatment in 1994 was associated with interference from broadleaf plantain (Plantago major L,) and dandelion (Taraxacum officinale Weber in Wiggers), A 20% reduction in midseason dry weight and seed yield with CP tillage in 1995 was associated with interference from volunteer timothy (Phleum pratense L.) and Kentucky bluegrass (Poa pratensis L,). Barley dry weight and seed yield were 29 and 26% greater in the barley-forage rotation compared,vith the monoculture in all years except 1995, despite greater weed pressure in the barley-forage rotation, confirming the benefits of forages to subsequent crops in a rotation, Compared with mineral fertilizer, application of manure resulted in lower dry weight and seed yield for barley; however, this reduction was not associated with weed interference, In contrast to tillage, crop rotation and nutrient source effects on crop variables appeared mediated through factors other than weed interference.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/11/20 alle ore 00:38:36