Bioloģiski audzētu kartupeļu piemērotība dažādiem izmantošanas veidiem atkarībā no šķirnes un audzēšanas vietas 2019. un 2020. gadā | Suitability of organically grown potatoes for different use depending on the variety and place of growing in 2019 and 2020
2021
Rutenberga-Ava, A., Latvia Univ. of Life Sciences and Technologies, Jelgava (Latvia). Faculty of Agriculture. Lab. for the Evaluation of the Economic Properties of Plant Varieties | Jansone, I., 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) | Stramkale, V., Institute of Agricultural Resources and Economics, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia) | Millere, A., Institute of Agricultural Resources and Economics, Priekuli, Priekuli Parish, Priekuli Municipality (Latvia)
Potato (Solanum tuberosum L.) in Latvia known also as “the second bread”. In recent years the total potato growing area has rapidly decreased from 14,000 ha in 2010 to 8,500 ha in 2020. As regards the growing area of potatoes in 2020, 80% are used for table, 11% are used for starch potato varieties, 4.1% are used for chips and 4.7% – seed. The aim of the trial was to obtain the productivity results of table and starch potato varieties grown organically. The field trials were conducted in three regions of Latvia at the Institute of Agriculture and Economics: Stende Research Centre (SPC) in Kurzeme, Priekuli Research Centre (PPC) in Vidzeme and Vilanu Division (VD) in Latgale in the certified organic fields with four table and three starch potato varieties in four replications in each place in 2019 and 2020. The results after two years’ studies showed that a variety, the growing place and the interaction of both factors (p is less than 0.05) have a significant impact on the potato yield and the starch content. The highest yield was obtained from the medium early table potato variety ‘Belmonda’ 38.07 t haE−1 in 2019 SPC and 33.27–30.08 t haE−1 in 2020 in SPC and PPC with starch content 16.58% in VD in 2019 and 19.52% in SPC in 2020. The highest starch potato yield in both years of the study was in SPC – from the starch varieties ‘Jogla’ (33.13–31.08 t haE−1), ‘Kuras’ (41.35–33.68 t haE−1) and ‘Papageno’ (28.93–28.06 t haE−1).
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