Tyrimai atlikti 2012 m. Lietuvos miškų ir agrarinių mokslų centro filiale žemdirbystės institute (LAMMC). Cukriniai runkeliai auginti lengvo priemolio giliau karbonatingame sekliai glėjiškame rudžemyje (Lightloam, Endocalcari-Endohypogleyic Combisol). Eksperimentu siekta išsiaiškinti, kaip skirtingos kompleksinės trąšos veikia cukrinių runkelių derlingumą ir kokybinius šakniavaisių rodiklius. Tyrimams pasirinkta cukrinių runkelių veislė „Ernestina“. Vidutiniais bandymų duomenimis nustatyta, kad skirtingos kompleksinės trąšos teigiamai veikė cukrinių runkelių derlingumą, naudojant tiek didesnes (N150) tiek mažesnes (N120) azoto normas. Didžiausias cukrinių runkelių derlingumas (82,19 t ha-1), gautas augalus tręšiant kompleksinėmis trąšomis NPK 16-16-16(120 kg ha-1)azoto norma. Tačiau skirtingos sudėties kompleksinės trąšos neturėjo esminio poveikio cukrinių runkelių pasėlio tankumui. Visos tyrime naudotos trąšos neturėjo esminės įtakos cukrinių runkelių cukringumui, tačiau didino cukrinių runkelių poliarizuoto cukraus ir baltojo cukraus derlingumą. Užfiksuotas net 13,35 t ha-1baltojo cukraus derlingumas naudojant kompleksinę trąšą NPK 16-16-16 ir tręšiant mažesne 120 kg ha-1 azoto norma. Skirtingos kompleksinės trąšos į dirvožemį įterpiant 120 kg ha-1 azoto, cukrinių runkelių šakniavaisiuose alfa-amino azoto koncentracijos nedidino arba ji padidėjo neženkliai. Bet cukrinius runkelius tręšiant 150 kg ha-1 azoto norma ir naudojant NPK 8-15-30 + 4 S kompleksinę trąšą, nustatytas... [toliau žr. visą tekstą] / The study was based on the experiment carried out at the Institute of Agriculture, Lithuanian Research Centre for Agriculture and Forestry in Central Lithuania on an Lightloam, Endocalcari-Endohypogleyic Combisol during 2012,in order to figure out the effect of different configurations of complex fertilizers on sugar beet yield and quality parameters. "Ernestina" is the type of sugar beets selected for testing. Different configurations of complex fertilizers in the background of nitrogen fertilizers (N120 and N150 kg ha-1) were used for testing as well as the plants were additionally fertilized with liquid boron fertilizer through the leaves 1 l ha-1 during the growing season. On the basis of average test data it was found positive effect of different NPK fertilizers on sugar beet yield using both rates of nitrogen (N120 and N150). The largest yield (82,19 t ha-1)of sugar beet obtained, when the plants were fertilized with NPK 16-16-16 fertilizers, 120 kg ha-1nitrogen rate and additionally fertilized with liquid boron fertilizers through the leaves 1 l ha-1. Different NPK fertilizers didn’t have a substantial effect on sugar beets plant density. All in the test used fertilizers didn’t have any substantial effect on sugar content of sugar beet roots, but they increased pol. sugar and white sugar yield as well. The largest yield of white sugar (13.35 t ha-1) was obtained from plants fertilized with NPK 16-16-16 fertilizers N120 rate.Concentration of alpha-amino nitrogen in... [to full text]

Abstract available in The FASEB Journal.

Submitted by Rodrigo Teixeira Bombig (rodrigotila@hotmail.com) on 2011-11-30T14:01:39Z No. of bitstreams: 1 Dissertação Definitiva Rodrigo T Bombig.pdf: 1036216 bytes, checksum: 8b43efab5a30904a349ec669b6069046 (MD5) / Approved for entry into archive by Gisele Isaura Hannickel (gisele.hannickel@fgv.br) on 2011-11-30T14:32:48Z (GMT) No. of bitstreams: 1 Dissertação Definitiva Rodrigo T Bombig.pdf: 1036216 bytes, checksum: 8b43efab5a30904a349ec669b6069046 (MD5) / Made available in DSpace on 2011-11-30T14:44:18Z (GMT). No. of bitstreams: 1 Dissertação Definitiva Rodrigo T Bombig.pdf: 1036216 bytes, checksum: 8b43efab5a30904a349ec669b6069046 (MD5) Previous issue date: 2011-11-04 / As exportações de açúcar cristal e refinado vêm passando por modificações em suas operações logísticas. Nos últimos anos, os embarques brasileiros têm migrado de navios convencionais com sacas soltas e capacidade média de 14 mil toneladas para embarques fracionados, em lotes de contêineres e médias ao redor de 600 toneladas cada. Essa mudança é capaz de aumentar substancialmente a quantidade de embarques e diferentes processos de exportação, trazendo impactos logísticos importantes para os agentes envolvidos na cadeia. O objetivo deste trabalho é, então, descrever os passos necessários para a exportação do açúcar (branco), de acordo com as duas modalidades de embarques mais utilizadas. Adicionalmente serão realizados o mapeamento e a comparação dos custos operacionais e de coordenação, em ambos os formatos: navios convencionais e contêineres. Com isso, este estudo pretende ilustrar diferentes arranjos logísticos, suas práticas, desafios e tendências, podendo auxiliar os tomadores de decisões na busca de maior competitividade brasileira diante do mercado internacional de açúcar branco. / The crystal and refined sugar exportation are changing related to their logistic operations. In the last years, Brazilian shipments have migrated from conventional break bulk vessels with an average capacity of 14.000 tons for partial shipments of containers with an average around 600 tons each. This change can increase the number of different shipments and export processes, bringing major logistic impacts to the chain players. The objective of this work is describing the necessary steps for exportation of white sugar, according to the two commonly used methods of shipments. Additionally, it will map and compare the costs, operational and for coordination, in both formats: conventional vessels and containers. Thus, this study aims to illustrate different logistical arrangements, practices, challenges and trends, in order to assist the decision makers searching for increasing Brazilian competitiveness on the international white sugar market.