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Influence of intercrops on weed infestation of cover crops on light soil

, : Influence of intercrops on weed infestation of cover crops on light soil. Annales Universitatis Mariae Curie Skodowska Sectio E, Agricultura 58: 53-67

A field experiment was conducted during 1993-1996 at the Agricultural Experimental Station of Bezek, Lublin, Poland on good rye complex to study the effects of cover crops, i.e. winter rye Dankowskie Zlote (240 plants per m2), winter triticale Presto (350 plants per m2), spring barley Rudzik (230 plants per m2) and oat Dragon (400 plants per m2), and of intercrops, i.e. serradella (Ornithopus compressus) Bydgoska (40 kg ha-1), white clover Podkowa (10 kg ha-1), red clover Hruszowska (20 kg ha-1), hop trefoil Renata (15 kg ha-1), white melilot Selgo (20 kg ha-1), and Dutch ryegrass Motycki (40 kg ha-1), on weed infestation. Before harvesting of cover crops, weed infestation was evaluated using the square-frame method. Weed species composition and dry matter of aboveground parts of weeds were also estimated. Winter rye was the most effective in the reduction of the number and mass of weeds. The highest total number and dry matter of weeds was recorded for the canopy of spring barley. The number and mass of weeds in cereals were not significantly reduced by the undersown crops. Winter rye and oats among the cover crops, and red clover and ryegrass among the intercrops were most efficient in the reduction of weed species composition. The following species of weeds dominated in the canopy of intercrops and cover crops: Chenopodium album, Agropyron repens Matricaria maritima and Echinochloa crus-galli. C. album and E. crus-galli predominated in the canopy of spring cereals, whereas A. repens and M. maritima predominated in the canopy of winter cereals.


Other references

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Yang, T.; Liu, J.; Luo, F.; Lin, Q.; Rosol, T.J.; Deng, X., 2015: Anticancer properties of Monascus metabolites. This review provides up-to-date information on the anticancer properties of Monascus-fermented products. Topics covered include clinical evidence for the anticancer potential of Monascus metabolites, bioactive Monascus components with anticancer p...

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Gosev, I.; Mick, S.L.; Couper, G.S.; Shekar, P.S., 2012: Pulsatile biventricular assist device and an absent mitral valve. Journal of Thoracic and Cardiovascular Surgery 144(2): E23-E25

Jendreyschak, J.; Illes, F.; Hoffmann, K.; Holtmann, M.; Haas, C-Rüdiger.; Burchard, F.; Emons, B.; Schaub, M.; Armgart, C.; Schnieder, H.; Juckel, G.; Haussleiter, I-Sibylle., 2014: Voluntary versus involuntary hospital admission in child and adolescent psychiatry: a German sample. Involuntary psychiatric admission is a central issue in mental health care, especially in the treatment of children and adolescents. Its legal regulations do not only differ between European countries, but also on a federal level. Only few studies...

Wang, W-Chao.; Zhang, X-Zhu.; Liu, D-Wei.; Qiu, J.; Wang, X-Hui.; Zhou, J-Hong., 2015: Corticotropin-releasing hormone and urocortin promote phagocytosis of rat macrophages through convergent but distinct pathways. Phagocytosis plays essential roles during inflammation and immune response. This study aims to explore the underlying mechanism of corticotropin-releasing hormone (CRH) and urocortin (UCN)-promoted phagocytosis of rat macrophages. To induce phagoc...

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Anonymous, 1981: Proceedings of the symposium: 'Air pollutants as additional stress factors under northern conditions'. November 11-13, 1980, Oulu, Finland. Twenty papers of forestry interest are noticed elsewhere in FA.