SodininkystÄ ir darÅ¾ininkystÄ - SodininkystÄs ir darÅ¾ininkystÄs institutas

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9. Mitsuri O., Takuji N., Toshiaki T. Production efficiency ofnitrogen absorbed by potato plant at various growth stages // Soil Science and PlantNutrition. 1993. No. 39(4). P. 583-593.10. P etraitienë V. Lauko sëjomainos augalø derliaus ir kokybëspriklausomumas nuo mineraliniø tràðø normø, santykiø bei judriøjø maisto medþiagøkiekio velëniniame glëjiðkame lengvo priemolio dirvoþemyje/ Habilitacinis darbas.Dotnuva- Akademija, 1997. 117 p.11. P ranckietienë I., Kuèinskas J. Træðimo planavimas.Kaunas- Akademija, 2003. P. 8 – 23.12. S ingh T. P., Singh R. P., Mangal J. L. Effect of differentlevels and methods of nitrogen application on storage behaviour of potato // Journal ofthe Indian Potato Association. 1994. No 21(1-2). P. 125-126.13. S taugaitis G., Kuèinskas J., Matusevièius K. Makroir mikroelementø reikmë skirtingo derlingumo bulvëms // Sodininkystë ir darþininkystë.2002. T. 21(2). P. 78-87.14. Ðvedas A., Januðauskaitë D. Maisto medþiagø poreikisprogramuojant þemës ûkio augalø derliø / LÞI uþbaigtø tiriamøjø darbø praneðimai.Dotnuva-Akademija, 2000. Nr.32. P. 20-21.15. Ðvedas A., Kupèinskas V., Simanauskytë E. Þemësûkio augalø derliaus kitimas Pietryèiø Lietuvos lengvos granuliometrinës sudëtiesdirvoþemiuose // Þemdirbystë. Akademija, 1999. T. 66. P. 91-107.16. Áðûñîçîâñêèé È. È. Îïòèìèçàöèÿ ïèòàíèÿ êàðòîôåëÿ //Àêòóàëüíûå ïðîáëåìû ñåëüñêîãî õîçÿéñòâà. Êàëèíèíãðàäñêèéãîñóäâðñòâåííûé óíèâåðñèòåò, 2001. Ñ. 89-1001.17. Êîëîìåé÷åíêî Â. Â. Ïðîáëåìû è ìåòîäû èçó÷åíÿôîòîñèíòåòè÷åñêîé ïðîäóêòèâíîñòè ïîñåëêé // Ñîâåðøåíñòâîâàíèåïðåïîäîâàíèÿ ôèçèîëîãèè ðàñòåíèé è ïîâûøåíèå ýôôåêòèâíîñòè íàó÷íîãîèññëåäîâàíèÿ ôèçèîëîãèè ðàñòåíèé â ñóêèõ âóçàõ. Ìîñêâà, 1993. Ñ. 71-78.18. Ë àïà Â. Â., Ëèìàíòîâà Å. Ì., Ðûáèê Î. Ô. è äð.Âëèÿíèå âîçðàñòâþùèõ äîç àçîòíûõ óäîáðåíèé íà ïðîäóêòèâíîñòü è êà÷åñòâîêàðòîôåëÿ â óñëîâèÿõ äðåíîâî-ïîäçîëèñòûõ ïî÷â Áåëîðóññêîé ÑÑÐ //Àãðîõèìèÿ. 1990. ¹ 6. Ñ. 3-10.19. Mèëååâ Ã. Â. Êîìïëåêñíûå óäîáðåíèÿ. Ìîñêâà: Àãðîïðîìèçäàò,1986. Ñ. 79-100.SODININKYSTË IR DARÞININKYSTË. SCIENTIFIC ARTICLES.2006. 25(1). 216-227.INFLUENCE OF DIFFERENT KINDS OF FERTILIZERS ON EARLYPOTATO CROPG. Staugaitis, R. Petrauskienë, A. DalangauskienëSummaryIn 2001-2003 the experiments were carried out in the research station of theLithuanian University of Agriculture. The purpose of this investigation was to evaluatethe influence of medium and high rates of NPK fertilization in the forms of simple andcomplex fertilizers as well as the influence of leaf feed fertilizers on very early potato226
yield, quality, nutrient balance, energy efficiency and profitability. Very early potatocrop was cultivated on the well-tamed soils rich with phosphorus and average rich withpotassium. Crop yield was higher in the plots where the complex fertilizers containingN, P, K and microelements were applied before planting, and lower in the plots fertilizedwith simple fertilizers containing either nitrogen or phosphorus, or potassium.Depending on the fertilization, the yield of tubers was decreasing in the following order:1) high rate of complex fertilizer Cropcare 10-10-20 N 120P 120K 240applied before planting,side-dressing with ammonium nitrate N 30rate during the growing period; 2) moderaterate of complex fertilizer Cropcare 10-10-20 N 90P 90K 120applied before planting; 3)simple fertilizers ammonium nitrate, simple super phosphate and potassium sulphateapplied before planting, the rate depended on the results of agrochemical testing of thesoil and it was N 113P 27K 117on the average.Spray-dressing (two times during the growing season) of potato crop with 0.2%solution of complex fertilizer Ferticare 14-11-25 containing nitrogen, phosphorus,potassium and microelements increased the tuber yield only once in three years, andthe increase was 4% only.All the fertilizers decreased the starch content in tubers and increased the totalamount of sugars and nitrates. The largest amounts of sugars and nitrates were found inthe variant with the highest nitrogen fertilization rate. The tubers of the crop fertilizedwith the simple fertilizers and additionally spray-dressed during the growing seasoncontained more of sugars and less solids.It is difficult to select the complex fertilizer best covering potato crop needs for thenitrogen, phosphorus and potassium. In this experiment the amount of nitrogen andpotassium supplied by the complex fertilizers matched the amount taken by the plants,but the overdose of phosphorus was 50-75 kg ha -1 . The potato crop fertilized with thesimple fertilizers at rates based on the results of agrochemical testing of soil receivedthe amounts of nitrogen and phosphorus almost adequate to the need, but the crop wasmissing even 60 kg ha -1 of potassium. This is a clear message that the potassium rates forthe very early potato crop should be revised.One third of the total energy used for production of potatoes was taken by thesimple fertilizers, and the high rate of the complex fertilizer has taken even a half of it.The best energy efficiency rate in the experiment was in the variant where the simplefertilizers were applied.In spite of the fact that the fertilization with the high rate of complex fertilizerincluding the side-dressing with the ammonium nitrate was 2.9 times more expensivethan the fertilization with the simple fertilizers, the gross profit was bigger when thevery early potato crop was fertilized with the high rate of complex fertilizers. It was 16%higher than in the variant fertilized with the moderate rate of complex fertilizer and35% higher than in the variant fertilized with the simple fertilizers.Key words: potato, complex fertilizers, simple fertilizers, leaf-feed fertilizers,quality of potato tubers.227
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LIETUVOS SODININKYSTËS IR DARÞINI
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1 lentelë. Obelø þydëjimo tarps
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6,05,04,0a/b3,02,01,001 2 3 4 5 6 7
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18. Ë ó÷øèå ñîðòà ïëî
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1998), Lenkijoje - Idared, Jonagold
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3,2 2,11,6 1,1 53,510,9R 05 / LSD 0
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3 lentelë. Obuoliø cheminë sudë
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Minkštimo tvirtumo obuoliuose rodi
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SODININKYSTË IR DARÞININKYSTË. S
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Skirtingos chlorofilø formos bei k
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mg/gmg/g3,532,521,510,5043,532,521,
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a + b, and Total Carotenoid Content
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Tyrimø objektas. Tirti skirtingo a
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Skeletinës ðakos. 2004 m. skeleti
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5 lentelë. Ávairiai genëtø juod
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þemës, atþëlæ krûmai 2005 m.
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2. Brennan R. M. Currants and goose
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Grybinëms ligoms atsparûs auksuot
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2 lentelë. Tarprûðiniø hibridø
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5 lentelë. Tarprûðiniø hibridø
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8. Stanys V., Shikshnianas T., Stan
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pasisavinimas gali bûti susijæs s
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1 lentelë. Geleþies tràðø áta
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nors lapuose yra daug geleþies, ji
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11. L ieten F. Iron nutrition of st
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Tyrimø rezultatai. B r a ð k i ø
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Grynasis fotosintezës produktyvuma
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augalai turi daugiau chlorofilo a,
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jos sutrintos grûstuvëlyje su kva
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Laikant Venta braðkiø uogas ávai
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Balai / Scores54,543,532,521,510,50
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7. Harker F. R., Elgar H. J., Watki
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uogø jusliniø savybiø tarpusavio
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Avietës, kurios iðsiskyrë iðvai
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10. Intensyvios uoginiø augalø au
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ûkiø veiklà. Á ES ÛADT atrenka
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1 lentelës tæsinysTable 1 continu
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3 lentelë. Lietuvos þemës ûkio
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aðkiø ir avieèiø augintojai. Va
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papildomai, kai burokëliai buvo 4-
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Derliaus dydá lëmë ðakniavaisio
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Aptarimas. Ávairiose ðalyse atlik
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14. S cholberg J., McNeal B. L., Bo
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2 lentelë. Meteorologinës sàlygo
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Sacharozës kiekis, pereinant ið
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1614121086420Mënuo / 10Month IIA%1
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Išvados. Burokëliø pasodø augim
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1 lentelë. Valgomøjø morkø morf
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2. Daugiausia karotino susikaupia S
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masëje nustatytas 100% acetono eks
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3,02,5mg cm -2 para -1 / mg cm -2da
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13. Í è÷èïîðîâè÷ À. À.
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intensyvumà. Augimo pasikeitimà d
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cm120,0100,080,060,040,020,00Lapø
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Literatûra1. Axter R., Ashenden T.
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donorus stresinëmis temperatûros
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Augalus - donorus auginant lauke, o
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Hibridø grupëje didþiausiu morfo
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liepos pradþioje, iðkritus daug k
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susidarë, kai liepos 3-5 d. iðkri
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SODININKYSTË IR DARÞININKYSTË. S
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ypaè liepos-rugpjûèio mënesiais
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Anksèiau (07 25 ir 08 01) nuimtø
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Maþiausià derliø (nepriklausomai
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14. V isser C.L.M. Beinvloeding van
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vystytis yra 6,7°C šilumos (Sites
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3 lentelë. Insekticidø biologinis
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8 lentelë. Insekticidø poveikis t
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skirtumø negauta. 2005 m. American
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Á kiekvienà indà ápilta po 3 l
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mg g -1amg g -1cmg g -1e1,41,21,00,
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Literatûra1. Alexieva V., Ivanov S
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34. Òàëàíîâà Â.Â., Òèò
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(ABA), jasmonic acid (JA) and gibbe
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μ g -1 FW / ŽM4030201025201510050
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Page 187 and 188: This lesion is often sharply deline
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Page 191 and 192: cubensis): the fungus and its hosts
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Page 197 and 198: Biol. and Med. 2002. Vol. 21-1. P.
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Page 207 and 208: SCIENTIFIC WORKS OF THE LITHUANIAN
Page 209 and 210: Wood (fir-tree) ash used in the tri
Page 211 and 212: Table 3. The influence of fertilizi
Page 213 and 214: increased. However, wood ash didn
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Page 217 and 218: (MgO) (Kviklienë, 1997; Kviklienë
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Page 225: 3. Vegetacijos metu du kartus nupur
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Page 233 and 234: formø vyðniø. Derlingø, vidutin
Page 235 and 236: Sodininkystës mokslas vertina A. U
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Page 239 and 240: paketo elektroninëje lentelëje EX
Page 241 and 242: -DiscussionShould not repeat result
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Page 245 and 246: D. Juðkevièienë, V. Stanys, P. D
Page 247 and 248: D. Juðkevièienë, V. Stanys, P. D
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SodininkystÄ ir darÅ¾ininkystÄ - SodininkystÄs ir darÅ¾ininkystÄs institutas