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	<title>Stir salbatic &#8211; Magazin Agro &#8211; Insecticide, erbicide, fungicide online | petala</title>
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	<title>Stir salbatic &#8211; Magazin Agro &#8211; Insecticide, erbicide, fungicide online | petala</title>
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		<title>Informtii despre stir salbatic, scapa de buruienile dicotiledonate anuale/perene</title>
		<link>../../../informtii-despre-stir-salbatic-scapa-de-buruienile-dicotiledonate-anualeperene/index.html</link>
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		<pubDate>Wed, 31 Aug 2016 15:42:21 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Dicotiledonate]]></category>
		<category><![CDATA[Ghidul buruienilor]]></category>
		<category><![CDATA[Stir salbatic]]></category>

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		<description><![CDATA[Stir salbatic (Amaranthus retroflexus) &#160; Amaranthus retroflexus este o buruiana care face parte din familia Amaranthaceae. Este o planta anuala cu inmultire prin seminte foarte raspandita indeosebi pe soluri permeabile, bogate in humus si in substante nutritive, in special in [&#8230;]]]></description>
				<content:encoded><![CDATA[<h3 style="text-align: center;"><em>Stir salbatic (Amaranthus retroflexus)</em></h3>
<p>&nbsp;</p>
<p><a href="http://www.petala.ro/wp-content/uploads/2016/08/stir-salbatic.jpg"><img class="wp-image-4171 size-medium alignleft" src="http://www.petala.ro/wp-content/uploads/2016/08/stir-salbatic-300x201.jpg" alt="stir salbatic" width="300" height="201" srcset="../../../wp-content/uploads/2016/08/stir-salbatic-300x201.jpg 300w, ../../../wp-content/uploads/2016/08/stir-salbatic-416x279.jpg 416w, ../../../wp-content/uploads/2016/08/stir-salbatic-768x515.jpg 768w, ../../../wp-content/uploads/2016/08/stir-salbatic.jpg 800w" sizes="(max-width: 300px) 100vw, 300px" /></a></p>
<p style="text-align: justify;">Amaranthus retroflexus este o buruiana care face parte din familia Amaranthaceae. Este o planta anuala cu inmultire prin seminte foarte raspandita indeosebi pe soluri permeabile, bogate in humus si in substante nutritive, in special in azot.</p>
<p style="text-align: justify;"> <strong>Germinatia</strong> semintelor poate avea loc imediat dupa diseminare, dar ea se desfasoara masiv primavara si vara, cand solul are cel putin 7ºC. Vor germina semintele aflate aproape la suprafata solului (0.5-1 cm) cu atat mai bine cu cat solul este mai bine maruntit si cu cat temperaturan este mai ridicata (fara a depasi 35ºC).</p>
<p style="text-align: justify;">Germinatia este epigee, iar cotiledoanele sunt eliptic-alungite de 9-12 mm lungime si 1.2-2 mm latime, rosii-violacee pe fata interioara.</p>
<p style="text-align: justify;"><strong>Frunzele</strong> sunt ovoidale, lung petiolate, verzi albastrui, alterne, cu varful ascutit, de obicei rosiatice pe partea inferioara.</p>
<p style="text-align: justify;">Cresterea organelor vegetative incepe prin alungirea si ramificarea radacinii, iar ulterior, din mai incepe sa creasca si tulpina, depasind ritmul de crestere al radacinii. Tulpina are o inaltime de pana la 100 cm, simpla sau ramificata, verde deschis pana la rosiatica, la baza cu frunze putine, iar in partea superioara cu frunze dese, acoperite cu perisori desi.</p>
<p style="text-align: justify;"><strong>Floarea</strong> este mica, putin vizibila, grupata in manunchiuri verzui la extremitatea tulpinii principale sau a ramificatiilor, cu periatnt ascutit ca un ghimpe. Inflorirea incepem in iunie si dureaza pana la primele brume de toamna. Numarul de seminte produse de o planta poate varia intre 800 si 100000.</p>
<p style="text-align: justify;"><strong>Combaterea</strong> acesteia se face cu: Adengo, Betanal Expert, Buctril Universal, Equip, hussar Activ, Laudis, Merlin Duo, Merlin flexx, Sekator Progress, Sencor Liquid.</p>
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