n. 1-2/2025 61 FOCUS o ai ceppi. Per evitare danni alle piante, una barretta a molla attiva il movimento del disco che si ritrae grazie all’azione di un cilindro idraulico. Interramento. Il materiale vegetale può essere interrato con l’erpice frangizolle (adatto quello a dischi), ma anche con aratri o vangatrici. Su un robusto telaio portante, l’erpice frangizolle monta uno o più ranghi di dischi bombati e inclinati rispetto all’asse verticale, con bordo liscio o dentato, models that work by broadcasting, ideal for large areas. Seed drills are often coupled with rollers at the rear to slightly compact the surface layer to make the soil adhere to the seeds, facilitating their imbibition and thus favoring germination. At the most appropriate time, from an agronomic point of view, the crop destined to become green manure is chopped up with a lawnmower equipped with knives blades or hammers blades (or flails) as working parts. Using hammers blades to chop up the material is undoubtedly more effective, thus facilitating both burial and subsequent decomposition. Lateral-shifting grass cutters are useful for this purpose in rows of vineyards or orchards and also for working on the banks of canals and ditches for complete cutting, even under the rows. As an alternative, disc grass cutters are also available for this last requirement. They are, in fact, the most effective solution for managing grass near tree trunks or stumps. To avoid damaging the plants, a spring-loaded bar activates the movement of the disc, which is retracted by a hydraulic cylinder. Burying. The plant material can be buried with a disc harrow (discs are best) and plows or spaders. On a sturdy supporting frame, the disc harrow has one or more rows of convex discs, inclined with respect to the vertical axis, with a smooth or toothed edge, which loosens the soil and incorporates plant residues along the entire horizon. This equipment is particularly suitable for compact soils that are diffiUna serie di coltelli (sopra) e di mazze (sotto) montate sulle trinciaerba. È evidente la maggior robustezza delle mazze rispetto ai coltelli A series of blades (above) and hammers blades (below) mounted on the mulcher. The hammer blades are clearly more sturdy than the blades
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