Weed Control by A. Price

By A. Price

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7%, compared with pea crop. At Joniskelis, due to higher and uneven incidence of Cirsium arvense, the variation of weed mass was less consistent. According to increasing total weed mass, the crops ranked as follows: cereals < intercrops < pea. The lowest weed mass was identified in sole oat crop. The variation of total weed numbers and mass was influenced by weed species. With low incidence of Viola arvensis, Veronica arvensis, Thlaspi arvense and more abundant counts of Galium aparine, all crops tended to reduce weed numbers compared with the spring period.

In intercropping, the component crop species are usually sown in parallel lines enabling mechanical crop production, maintenance, and harvest. Intercropping involves crop intensification in respect to both time and space dimensions (Ahlawat and Sharma, 2002). Conceptually, an intercropping system helps for risk avoidance from epidemic of insect-pest and diseases and overcome adverse environmental conditions in agro-climatologically unstable regions along with increasing solar radiation utilization and inputs including fertilizer and water utilization compared to monoculture crops.

S. (2001) Interspecific competition, N use and interference with weeds in pea-barley intercropping. Field Crops Research, Vol. 70, pp. ; Ambus, P. & Jensen, E. S. (2003) The comparison of nitrogen use and leaching in sole cropped versus intercropped pea and barley. Nutrient Cycling in Agroecosystems, Vol. 65, pp. ; Kinane, J. & Jensen, E. S. (2008). Grain legume – cereal intercropping: The practical application of diversity, competition and facilitation in arable and organic cropping systems. Renewable Agriculture and Food Systems, Vol.

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