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anale 8.pdf - Institutul National de Cercetare Dezvoltare pentru ...

anale 8.pdf - Institutul National de Cercetare Dezvoltare pentru ...

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GH. DINAcepînd CU luna mai, dacă se practică cultura protejată. (2) Avind dreptelement <strong>de</strong> comparaţie varianta martor neprotejată, S2 constată că răsă-­rirea plantelor <strong>de</strong> cartofi la toate variantele cu plantarea tuh2rculilor pesoL protejate sau 111ulcite, are loc <strong>de</strong>stul <strong>de</strong> greu, fiind influenţate în lTIoddirect <strong>de</strong> condiţiile <strong>de</strong> mediu din această care sînt <strong>de</strong>stul <strong>de</strong> vitregeşi <strong>de</strong>termină uscarea unui număr n1a1'e <strong>de</strong> lăstari, ca atare procentul <strong>de</strong>r5sărire pe variante este lTIic. (3) O comportare bună în ceea ce priveştecreşterea vegetativă şi producţia extratimpuric <strong>de</strong> tuberculi o au varianteleun<strong>de</strong> t Jberculii s-au plantat la 2 c111adincime, iar plantele au fost1puse în condiţii <strong>de</strong> creştere sub folie <strong>de</strong> polietilenă perforată sau pe so­Iuri 111ulcite cu peliculă neagră. O) Un beneficiu la hectar <strong>de</strong> peste20.000 lei se realizează in cazul variantelor mulcite cu peliculă <strong>de</strong> culoareneagră, iar o valoare <strong>de</strong> peste 12.000 lei/ha a beneficiului obţinelTIp-rin V'otejarea plantelor cu adăposturi joase tip tunel confecţionate dinpeliculă <strong>de</strong> polietilenă transparentă.TECHNOLOGY OF' CROPPING EA.RLY POTATOSUlVIlVIARYThe protection of the potato plants by plastic folia covers on the sands theSouth of Olten1a contributed to harvest very early high tuber yielc1s with a goodsize of tubers. Using folias of black polyc1tylene applied directly on the soU maybe harvesteei 3.4-3.6 toncs/ha more (table 2) anei have an income of 7000-S0o.0 lei/h~lhigher (table 4) in spite of the. expenses for material anel hanclwork ; the plants aregetting a 1'athe1' few tubers but of a very gaod size. Using 10"w shelters (tunnels)of polyetylene clipped folias in the same time with covers directly on the sail, thehighest yields were obtained but the income \vas noL similar because of the greatexpenses.UNTERSUCHUNGEN ZUH FRUHKAHTOFFELTEiCHNOLOGIEZUSAMMENFASSUNGDer Frllhkartoffelbau auf elen Sanclbo<strong>de</strong>n im Sli<strong>de</strong>n Oltenien unter Folienfilh,rte zu ho11e'11 Ertrăgen und gute QualWlt cler Knollen.Durch clie Ab<strong>de</strong>ckung cles gepflanzten Boclens mit sch\varzer Polyethylenfolie\Vurele cine Ertragzunahme van 3,4-3,6 t/ha Knollcn crreicht (Tabelle 4). Gleichzdtigstieg das Mcttoeinkommen mit 7--8000 lei/ha. Unter Folienbe<strong>de</strong>ckung bil<strong>de</strong>nsich weniger Knollen, abel' vieI grosser, sa dass clie Qualităt <strong>de</strong>r lVIarkt'Nare verbessertwird.Die hochsten Ertrăge wur<strong>de</strong>n dann crreicht als <strong>de</strong>r gcpIlanzte Bo<strong>de</strong>n mit Foliebec1eckt wur<strong>de</strong>, abel' gleichzeitig die ganze FIăche unter clurchlOcherten PolyethylenÎoIientunellegeschutzt wur<strong>de</strong>.Der Mettoeinkommen ',var in c1icsem FalI kleiner. Die crstc Mcthodc kUntcfur Clic Gl~ossbetriebe empfohlen wer<strong>de</strong>n, mit <strong>de</strong>m Zweck <strong>de</strong>r Versicherung <strong>de</strong>r€irsten Fruhkartoffein fur clie Bevolkerung.

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