[Pea, agronomy. Report of 1987 trials [comparison of drillers, growth regulators: Alar 85 (daminozide), Berelex (gibberellic acid), Baronet (triapenthenol); intensification, delayed ripening; peas for canning]]

biological development centre cosecha date essai fertilizantes nitrogenados ga gibberelline growth inhibitors harvesting inhibidores del crecimiento intensification maturation nitrogen fertilizers picardia picardie picardy pisum sativum pruebas retardateur de croissance semoir timing trials