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Līdzsvarota Lauksaimniecība Latvijas Lauksaimniecības universitāte Lauksaimniecības fakultāte Latvijas Agronomu biedrība Latvijas Lauksaimniecības un meža zinātņu akadēmija LĪDZSVAROTA LAUKSAIMNIECĪBA Zinātniski praktiskās konferences RAKSTI Proceedings of the Scientific and Practical Conference “Harmonious Agriculture” Jelgava 2018 Latvijas Lauksaimniecības universitāte Lauksaimniecības fakultāte Latvijas Agronomu biedrība Latvijas Lauksaimniecības un meža zinātņu akadēmija LĪDZSVAROTA LAUKSAIMNIECĪBA Zinātniski praktiskās konferences RAKSTI Proceedings of the Scientific and Practical Conference Harmonious Agriculture Jelgava 2018 Zinātniski praktiskā konference „LĪDZSVAROTA LAUKSAIMNIECĪBA”, 22.02.2018., LLU, Jelgava, Latvija Konference un rakstu krājums veltīts lauksaimniecības izglītības Latvijā 155 gadu jubilejai Rakstu zinātniskā komiteja (redkolēģija) Vadītājs: Dzidra Kreišmane, Dr. agr. LLU Augsnes un augu zinātņu institūts Vietniece: Biruta Bankina, Dr. agr. LLU Augsnes un augu zinātņu institūts Dalībnieki: Dace Siliņa Dr. agr. LLU Augsnes un augu zinātņu institūts Daina Jonkus, Dr. agr. LLU Dzīvnieku zinātņu institūts Ina Alsiņa, Dr. biol. LLU Augsnes un augu zinātņu institūts Daina Kairiša, Dr. agr. LLU Dzīvnieku zinātņu institūts Konferences organizācijas komiteja Dr. agr. Dzidra Kreišmane (vadītāja) Dr. agr. Dace Siliņa, Mg. agr. Renāte Sanžarevska Recenzenti Reviewers Dr. biol. Ina Alsiņa Mg. agr. Lāsma Cielava Mg. agr. Anda Rūtenberga-Āva Mg. agr. Laila Dubova Dr. agr. Andris Bērziņš Dr. agr. Dzidra Kreišmane Dr. agr. Anda Liniņa Dr. agr. Maija Ausmane Dr. agr. Daina Kairiša Dr. geol. Ilze Vircava Dr. agr. Daina Jonkus Dr. agr. Dace Siliņa Dr. agr. Lilija Degola Literārie redaktori Language editors Sarmīte Palma – latviešu valoda, Inese Ozola – angļu valoda Datorsalikums Page layout by Inese Bergmane Vāka dizains Cover design by Dainis Barkāns Konference notika 2018. gada 22. februārī, Latvijas Lauksaimniecības universitātē, Lauksaimniecības fakultātē, Jelgavā, Lielā ielā 2 Latvijas Lauksaimniecības universitāte, 2018 ISBN 978-9984-48-284-2 (elektroniskajam izdevumam) 2 Zinātniski praktiskā konference „LĪDZSVAROTA LAUKSAIMNIECĪBA”, 22.02.2018., LLU, Jelgava, Latvija SATURS LAUKKOPĪBA ............................................................................................................................................5 Bērziņš P., Rancāne S., Stesele V., Vēzis I. Daudzgadīgo stiebrzāļu sugu un šķirņu nozīme ilggadīgu un augstražīgu zelmeņu veidošanā ................................................................................................................5 Liniņa A., Kunkulberga D., Kronberga A., Kokare A. Hibrīdo un populācijas rudzu šķirņu 1000 graudu masa un tilpummasa ........................................................................................................................10 Līpenīte I., Kārkliņš A., Ruža A. Slāpekļa aprites pētījumi Saldus stacionārā (2015.–2017. gads)...........14 Ņečajeva J., Erdmane Z., Zariņa L., Piliksere D., Maļecka S., Melngalvis I. Izplatītāko nezāļu skaita un izplatības dinamika un to ietekmējošie faktori ziemas un vasaras kviešu sējumos 2013.-2017. gadā .........................................................................................................................................20 Platače R., Adamovičs A. Mēslojuma ietekme uz zālaugu sausnas ražu, biomasas kvalitāti un augu barības elementu iznesi ................................................................................................................................25 Strazdiņa V., Fetere V., Maļecka S., Damškalne M. Ziemas kviešu šķirnes ‘Brencis’ raksturojums ........30 DĀRZKOPĪBA ..........................................................................................................................................34 Balode A. Vermikomposta substrātu ietekme uz garziedu lilijas (lilium longiflorum) augšanu ................34 Haļzovs J., Balode A. Liliju aseptiska ievadīšana augu audu kultūrā ........................................................38 Skrīvele M., Kaufmane E. Latvijas dzeltenā olplūme – tās izmaiņas gadsimta laikā un iespējas šķirni atjaunot ........................................................................................................................................................40 LOPKOPĪBA .............................................................................................................................................44 Brente J., Liepa L. Sensora “Heatime Pro System” atgremošanas mērījumu sakarības ar govju veselības un produktivitātes rādītājiem .......................................................................................................44 Liepa L., Viduža M. Lactobacillus fermentum kultūras perorālas pielietošanas efektivitāte ar subakūto spurekļa acidozi slimām slaucamajām govīm .............................................................................................49 Orbidāne L., Kļaviņa I., Veidemane A., Jonkus D. Vaislas ērzeļu izcelsmes analīze Latvijas siltasiņu zirgu šķirnes sporta tipā ...............................................................................................................................54 Putniņa S., Lisovska M., Liepa L. Urīna pH noteikšanas nozīme govju pēcdzemdību hipokalcēmijas prognozēšanā un to ietekmējošie faktori .....................................................................................................59 Vecvagars J., Kairiša D. Latvijas tumšgalves šķirnes aitu populālacijas struktūra ....................................64 Veidemane A., Jonkus D. Latvijas šķirnes sporta un braucamā tipa vaislas ķēvju izmēru analīze 25 gadu periodā (1988-2013) ......................................................................................................................69 PRAKTISKĀ PIEREDZE ........................................................................................................................74 Bleidere M., Grunte I., Jansone Z., Ēce L. Dažādu miežu genotipu novērtējums kvalitatīvu grūbu ieguvei .........................................................................................................................................................74 Kokare A., Rābante L., Kronberga A., Konošonoka I. Akrilamīda saturs tritikāles un rudzu maizē .........78 Pogulis A. Kartupeļu šķirņu ar zilu un violetu mīkstumu produktivitātes raksturojums............................80 Skrabule I., Mežaka I., Venta N., Vojevoda L. ‘Rigonda’ – kartupeļu šķirne agrai ražai ..........................87 Skrabule I., Mežaka I., Venta N., Vojevoda L. Cietes ražošanai piemērota kartupeļu šķirne ‘Jogla’ .......91 Vojevoda L., Osvalde A., Čekstere G., Karlsons A. Barības elementu uzņemšana kartupeļu stādījumā pielietojot organiskas izcelsmes produktu izvilkumus ................................................................................96 Bimšteine G., Ļevicka I. Miltrasa – nozīmīga slimība kokaudzētavās ......................................................98 3 Zinātniski praktiskā konference „LĪDZSVAROTA LAUKSAIMNIECĪBA”, 22.02.2018., LLU, Jelgava, Latvija SVEICAM ................................................................................................................................................103 Augļkopības zinātniekam Dr.agr. Andrim Bitem – 80 ..............................................................................103 Pļavkopības speciālistam, izcilam selekcionāram, Dr. agr., Emeritus Pēterim Bērziņam – 80.................104 Dr. agr. Arnolds Riekstiņš .........................................................................................................................105 ATCERAMIES ........................................................................................................................................107 Lauksaimniecības zinātnes un selekcijas centrs Priekuļos pārkāpis simtgadu slieksni .............................107 Atceroties docenti Rutu Apenīti ................................................................................................................107 ATVADĪJĀMIES ....................................................................................................................................109 Dr. agr. Ēvalds Krēsliņš .............................................................................................................................109 Dr. agr. Uldis Miglavs ...............................................................................................................................109 4 Zinātniski praktiskā konference „LĪDZSVAROTA LAUKSAIMNIECĪBA”, 22.02.2018., LLU, Jelgava, Latvija LAUKKOPĪBA DAUDZGADĪGO STIEBRZĀĻU SUGU UN ŠĶIRŅU NOZĪME ILGGADĪGU UN AUGSTRAŽĪGU ZELMEŅU VEIDOŠANĀ THE ROLE OF SPECIES AND CULTIVARS OF PERENNIAL GRASSES FOR PERSISTENT AND HIGH PRODUCTIVE SWARD ESTABLISHMENT Pēteris Bērziņš, Sarmīte Rancāne, Vija Stesele, Ivo Vēzis LLU Zemkopības zinātniskais institūts, [email protected] Abstract. The species and cultivars have a very important role in the sward productivity and persistency. Breeders of perennial grasses in Skriveri carry out activities in developing of new cultivars, therefore perspective numbers are compared with each other and commercial cultivars as well. The data of 4 to 6 ley years of dry matter yield (DMY), softness of leaves and persistency of Dactylis glomerata L., Festuca pratensis Hudds, Festuca arundinacea L., Lolium perenne L. and Festlolium hybrids in this article are summarized. Trials were arranged in 2011–2012 in sod podzolic sandy loam soil (Eutric Retisol – WRB 2015) with an -1 -1 average pH
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