Divu mehāniskās nezāļu ierobežošanas metožu efektivitātes salīdzinājums zirņu sējumos
2021
Zarina, L., Institute of Agricultural Resources and Economics, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia) | Piliksere, D., Institute of Agricultural Resources and Economics, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia) | Zarina, L., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia) | Lozbergs, A., Institute of Agricultural Resources and Economics, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia) | Gutans, A., Eko Lauki, SIA, Mūrmuiža, Kauguri Parish, Valmiera Municipality (Latvia) | Steinbergs, J., Mistrs, SIA, Lejasciems Parish, Gulbene Municipality (Latvia)
The problem of weed control is a global problem, so it is constantly evolving opportunities have been sought to address this, with particular emphasis on methods that exclude the use of herbicides. One of such opportunities already exist in several countries (Lötjönen, Mikkola, 2000; Melander, McCollough, 2020) tested row spacing of volumes. This innovative technology is based on precision technology using a technique equipped with sensors that detect the direction of the seed rows. In order to make sure that the innovative method is suitable for Latvian conditions, the EAFRD project “Research on Innovative Crop and Legume Care Technology for Pesticide-Free Weed Controls” within the Institute of Agricultural Resources and Economics, SIA“Eko Lauki”and SIA “Mistrs” fields, experiments have been set up in peas, growing them in a cleaner and in mixtures. These studies based on the hypothesis that when sowing at a greater distance between rows and further sowing between rows effective weed control is achieved. The data show that the innovative weed control technology was traditional more effective in pure sowing of peas, but less effective in pea mixtures with cereals (see Figure 1). Average 15–22 weed species have been recorded in both biologically managed fields and 11 to 22 in conventional fields. 16 species, which confirms the fact that a larger number of species is observed in the volumes cultivated by biological methods biodiversity that is also in agreement with other scientists (Jastrzębska et al., 2013; Henckel et al., 2015) research results obtained. In pea fields, the total number of weeds reached 101 weeds per 1 square m variant with the traditional sowing method in the biological field and 87 weeds per 1 square m – in the conventional field. According to weed inventory and weight data, pea cleaners are sown while working with the innovative method, there are fewer weeds, but their weight did not differ much on average in all fields.
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