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	<title>Zarna &#8211; Magazin Agro &#8211; Insecticide, erbicide, fungicide online | petala</title>
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		<title>Informatii despre zarna, scapa de buruienile dicotiledonate anuale/perene</title>
		<link>../../../informatii-despre-zarna-scapa-de-buruienile-dicotiledonate-anualeperene/index.html</link>
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		<pubDate>Wed, 31 Aug 2016 18:50:52 +0000</pubDate>
		<dc:creator><![CDATA[admin]]></dc:creator>
				<category><![CDATA[Dicotiledonate]]></category>
		<category><![CDATA[Ghidul buruienilor]]></category>
		<category><![CDATA[Zarna]]></category>

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		<description><![CDATA[Zarna (Solanum nigrum) Zarna este o buruiana anuala, care se inmulteste prin seminte, cu radacina pivotanta scurta. Iubeste solurile bogate in humus si azot, afanate. Este indicatoare de azot. Epoca de germinare incepe in aprilie si continua pana toamna, daca se afla [&#8230;]]]></description>
				<content:encoded><![CDATA[<p style="text-align: center;"><strong><em>Zarna (Solanum nigrum)</em></strong></p>
<p style="text-align: center;"><a href="http://www.petala.ro/wp-content/uploads/2016/08/Zarna.jpg"><img class="wp-image-4364 size-medium alignleft" src="http://www.petala.ro/wp-content/uploads/2016/08/Zarna-300x225.jpg" alt="Zarna" width="300" height="225" srcset="../../../wp-content/uploads/2016/08/Zarna-300x225.jpg 300w, ../../../wp-content/uploads/2016/08/Zarna-416x312.jpg 416w, ../../../wp-content/uploads/2016/08/Zarna.jpg 550w" sizes="(max-width: 300px) 100vw, 300px" /></a></p>
<p style="text-align: justify;">Zarna este o buruiana anuala, care se inmulteste prin seminte, cu radacina pivotanta scurta. Iubeste solurile bogate in humus si azot, afanate. Este indicatoare de azot.</p>
<p style="text-align: justify;"><strong>Epoca de germinare</strong> incepe in aprilie si continua pana toamna, daca se afla sau sunt aduse in stratul superficial al solului (0,5-1cm). Acest fapt alaturi de germinatia esalonata si rezistenta unor populatii la anumite erbicide, explica valurile succesive de imburuienare ale unor culturi din acesta specie. Germinatia este epigee, iar c<strong style="line-height: 1.5;">otiledoanele</strong><span style="line-height: 1.5;">  sunt larg &#8211; ovale, cu varful fin alungit, cu margini intregi, petiolate, paroase, cu nervura principala vizibila.</span></p>
<p style="text-align: justify;"><strong> Frunzele</strong> adevarate sunt ovale pana la oblonge, dantelate pe margine, usor paroase, petiolate, verde mat intens, cu nervura principala vizibila.</p>
<p style="text-align: justify;"><strong> Tulpina</strong> este taratoare sau inclinata, ramificata, presarata cu perisori scurti, colorata usor violet ca si petiolurile frunzelor, cu inaltime pana la 50 cm. Cresterea este evidenta pana la inflorire, dar difera dupa perioada cand a avut loc germinatia.</p>
<p style="text-align: justify;"> Primii indivizi infloresc in iunie, iar ultimii in septembrie-octombrie. Este caracteristic ca floarea poara flori<strong> </strong>albe, stelate, sunt reunite mai multe flori pe tije scurte (asemanatoare cu florile la cartof), iar perioada de inflorire: iunie / iulie – toamna.</p>
<p style="text-align: justify;"><a href="http://www.petala.ro/wp-content/uploads/2016/08/zarna-2.jpg"><img class="alignnone wp-image-4363 size-medium" src="http://www.petala.ro/wp-content/uploads/2016/08/zarna-2-300x320.jpg" alt="zarna 2" width="300" height="320" /></a>   <a href="http://www.petala.ro/wp-content/uploads/2016/08/zarna-1.jpg"><img class="alignnone wp-image-4362 size-medium" src="http://www.petala.ro/wp-content/uploads/2016/08/zarna-1-300x225.jpg" alt="zarna 1" width="300" height="225" srcset="../../../wp-content/uploads/2016/08/zarna-1-300x225.jpg 300w, ../../../wp-content/uploads/2016/08/zarna-1-416x312.jpg 416w, ../../../wp-content/uploads/2016/08/zarna-1-768x576.jpg 768w, ../../../wp-content/uploads/2016/08/zarna-1.jpg 800w" sizes="(max-width: 300px) 100vw, 300px" /></a></p>
<p style="text-align: justify;">In zonele colinare este planta-gazda pentru ciuperca ce produce raia neagra a cartofului.</p>
<p style="text-align: justify;"><strong>Combaterea acesteia se face cu erbicide precum: Adengo,Betanal expert, Buctril Universal,Equip,Laudis, Merlin Duo, Merlin flexx.</strong></p>
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