Part III : The availability of fertilizer nitrogen. Commercial fertilizers for forcing house crops. Scald or burn of tomatoes. Insect notes. Prevention of potato scab. Winter condition of fungus of peach scab. Leaf blight of melons. A fungous disease of t.

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Bookshop shipping conditions:

For items priced over €300, it is possible to request an instalment plan from Maremagnum. Payment can be made with Carta del Docente, Carta della cultura giovani e del merito, Public Administration.

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