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cartoful in RO vol12nr2.pdf - Institutul National de Cercetare ...

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Utilizarea erbici<strong>de</strong>lor Tn situatia actuala constituie a veriga tehnologica<br />

<strong>de</strong> prima marime, fara <strong>de</strong> care agricultura nu se poate numi nici <strong>in</strong>tensiva,<br />

nici mo<strong>de</strong>ma.<br />

Erbici<strong>de</strong>le sunt sUbstante chimice predom<strong>in</strong>ant organice, pre<strong>de</strong>st<strong>in</strong>ate<br />

sa distruga un numar cat mai mare <strong>de</strong> buruieni d<strong>in</strong> culturile agricole.<br />

Detalii priv<strong>in</strong>d combaterea buruienilor d<strong>in</strong> cultura <strong>cartoful</strong>ui, <strong>in</strong>clusiv cu<br />

folosirea erbici<strong>de</strong>lor, se pot gasi Tn "Proteetia Cartofului", editura Ceres<br />

1987, cap. "Buruieni" ~i Tn "Ghid Praetie <strong>de</strong> Protectia Cartofului", editura<br />

Ceres 1996, cap. "Combaterea buruienilor d<strong>in</strong> cultura <strong>cartoful</strong>ui".<br />

Erbici<strong>de</strong>le, utilizate rational, aduc sporuri <strong>de</strong> productie foarte mari,<br />

fara riscuri. Alegerea erbici<strong>de</strong>lor trebuie efectuata Tn contextul conceptului<br />

<strong>de</strong> "combatere onte9lrati:i".<br />

o aie9lell"e potll"ivita aduce cultivatorului <strong>de</strong> cartof avantaje <strong>de</strong>osebite<br />

cum ar fi:<br />

• a eficacitate biologica ridicata, Tntr-un timp record ~i cu persistenta<br />

potrivita;<br />

• <strong>in</strong>terventii rapi<strong>de</strong>, cu posibilitati largi <strong>de</strong> acoperire biologica;<br />

• protectie pe termen lung ~i atunci cand, d<strong>in</strong> cauza conditiilor<br />

c1imatice nefavorabile, nu se poate <strong>in</strong>terveni cu mijloace c1asice;<br />

• productivitate foarte mare a muncii, cu dim<strong>in</strong>uarea costurilor.<br />

Crotell"me care stau la baza alegerii erbici<strong>de</strong>lor sunt urmatoarele:<br />

• cunoa§terea erbici<strong>de</strong>lor: mod <strong>de</strong> actiune, spectru <strong>de</strong> combatere;<br />

• selectivitatea culturii fata <strong>de</strong> erbicid;<br />

• conditiile <strong>de</strong> clima ~i sol specifice zonei, localitatii ~i parcelei;<br />

• cultura premergatoare; gradul <strong>de</strong> Tmburuienare este diferit, ca<br />

urmare a <strong>in</strong>fluentei remanentei erbici<strong>de</strong>lor aplicate la cultura<br />

respectiva asupra <strong>cartoful</strong>ui;<br />

• gradul <strong>de</strong> Tmburuienare ~i felul buruienilor;<br />

e natura chimica a erbici<strong>de</strong>lor;<br />

• tehnica <strong>de</strong> aplicare <strong>de</strong> care se dispune;<br />

e pretul produselor <strong>de</strong> combatere.<br />

36

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