2008 m. Lietuvos žemės ūkio universiteto Bandymų stotyje atlikus organinių azoto trąšų Provita įtakos ekologiškai auginamoms bulvėms tyrimus, nustatyta, kad tręšimas organinėmis azoto trąšomis Provita, bei organinių azoto trąšų Provita deriniais su Patenkali ir fosforitmilčiais esminiai padidino bulvių suminį ir prekinį derlingumą bei derliaus prekingumą. Patręšus Provita, Patenkali ir fosforitmilčiais bei Provita ir Patenkali esminiai padidėjo suminis ir prekinis bulvių derlingumas, lyginant su tręšimu Provita bei Provita ir fosforitmilčių trąšų deriniu. Bulves patręšus Provita, Provita ir Patenkali bei Provita, Patenkali ir fosforitmilčiais esminiai sumažėjo bulvėse krakmolo, lyginant su netręštomis bulvėmis. Patręšus bulves organinėmis azoto trąšomis Provita esminiai sumažėjo sausųjų medžiagų bulvių gumbuose, lyginant su netręštomis bulvėmis bei tręšimu Provita, kalio ir fosforo trąšų deriniais. Tręšiant organinėmis azoto trąšomis Provita gautas neigiamas azoto balansas. Tręšimas N60 organinių azoto trąšų norma, neužtikrino teigiamo azoto balanso dirvožemyje. / Research on the effect of organic nitric fertilizers Provita to organically cultivated potatoes performed in 2008 at the experimental station of Lithuanian University of Agriculture highlighted, that fertilization of potatoes with organic nitric fertilizers Provita, as well as combinations of organic nitric fertilizers Provita with Patenkali and phosphorite powder, significantly increased total and marketable harvest of potatoes, as well as merchantability of harvest. In case of fertilization with Provita, Patenkali and phosphorite powder, as well as Provita and Patenkali, total and marketable harvest of potatoes was significantly increased, compared with fertilization using Provita and the combination of Provita and phosphorite powder. After fertilization of potatoes with Provita, Provita and Patenkali as well as Provita, Patenkali and phosphorite powder, the concentration of starch in potatoes was significanlty lower, than in these never fertilized. After fertilization of potatoes with organic nitric fertilizers Provita, the concentration of dry matterial in potatoes was significantly decreased, compared to these never fertilized, or fertilized with Provita, combinations of kalium and phosphoric fertilizers. Fertilization of potatoes had no significant effect to the concentration of soluble dry matterial in potatoes. Fertilization with organic nitric fertilizers Provita resulted in negative nitric balance. Fertilization with standard volume of organic nitric fertilizers N... [to full text]
| Identifer | oai:union.ndltd.org:LABT_ETD/oai:elaba.lt:LT-eLABa-0001:E.02~2009~D_20090608_123352-64507 |
| Date | 08 June 2009 |
| Creators | Bičius, Žydrūnas |
| Contributors | Pekarskas, Juozas, Vaisvalavičius, Rimantas, Pilipavičius, Vytautas, Bobinas, Česlovas, Pranckietis, Viktoras, Duchovskis, Pavelas, Motuzas, Algirdas, Lithuanian University of Agriculture |
| Publisher | Lithuanian Academic Libraries Network (LABT), Lithuanian University of Agriculture |
| Source Sets | Lithuanian ETD submission system |
| Language | Lithuanian |
| Detected Language | English |
| Type | Master thesis |
| Format | application/pdf |
| Source | http://vddb.library.lt/obj/LT-eLABa-0001:E.02~2009~D_20090608_123352-64507 |
| Rights | Unrestricted |
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