Export: Evaluating the need for an active depth-control system for direct seeding in Portugal

Garrido Izard, Miguel and Conceiçao, Luis Alcino and Baguena Isiegas, Eva and Valero Ubierna, Constantino and Barreiro Elorza, Pilar (2011). Evaluating the need for an active depth-control system for direct seeding in Portugal. In: "8 th European Conference on Precision Agriculture (ECPA)", 11-14 Julio, Praga (Republica Checa).

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