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Fertilisation des pommes de terre - K+S KALI GmbH

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7<br />

Effet <strong>de</strong> la pério<strong>de</strong> d'application sur le ren<strong>de</strong>ment en tubercules<br />

(Allemagne)<br />

600<br />

Barfeld 1993 Langwe<strong>de</strong>l 1997 Langwe<strong>de</strong>l 1998 Langwe<strong>de</strong>l 1999 Langwe<strong>de</strong>l 2001<br />

Ren<strong>de</strong>ment en t/ha<br />

500<br />

400<br />

300<br />

200<br />

0 300 300 0 200 200 0 200 200 0 200 200 0 200 200<br />

kg K 2 O/ha apportés en Patentkali<br />

Témoin avant plantation après plantation<br />

Une application juste<br />

avant la plantation est<br />

toujours avantageuse !

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