Occurrence of weed species in the agrocenosis in the regions of Latvia depending on crop sequence | Nezāļu sugu sastopamība agrocenozēs Latvijas reģionos atkarībā no labību īpatsvara augu maiņā
2016
Lapins, D., Latvia Univ. of Agriculture, Jelgava (Latvia) | Piliksere, D., Latvia Univ. of Agriculture, Jelgava (Latvia). Faculty of Agriculture | Malecka, S., Latvia Univ. of Agriculture, Priekuli, Priekuli Municipality (Latvia). Inst. of Agro Resources and Economics | Putniece, G., Latvia Univ. of Agriculture, Jelgava (Latvia) | Kopmanis, J., Latvia Univ. of Agriculture, Jelgava (Latvia) | Sanzarevska, R., Latvia Univ. of Agriculture, Jelgava (Latvia) | Jermuss, A., Latvia Univ. of Agriculture, Jelgava (Latvia) | Millere, G., Latvia Univ. of Agriculture, Jelgava (Latvia) | Melngalvis, I., Latvia Univ. of Agriculture, Jelgava (Latvia) | Zarina, L., Latvia Univ. of Agriculture, Priekuli, Priekuli Municipality (Latvia). Inst. of Agro Resources and Economics
The aim of this study was to determine the principles of Integrated Pest Management implementation of scientifically-based recommendations limiting the spread of weeds. The research in Latvia was conducted in the time period from 2011 to 2015. This publication provides information on the research that explains the selected crop sequence system and its effect on weed species depending on the proportion of cereals in the crop sequence. It was estimated that the complex regional circumstances had an impact on the weed species and the variation in the occurrence of crop sequence versions with an increased proportion of cereals up to 80–100%. Increasing the proportion of cereals contributed to a significant increase of some weed species, including Avena fatua. Weeds Vicia spp. and Bromus spp. increased significantly. The hypotheses regarding the use of rotation options for weed infestation and distribution regulation of Avena fatua, Apera spica-venti, and Bromus spp. still require additional studies.
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