INFLUENCE OF DRIP IRRIGATION AND OF FERTILIZATION, ON THE PRODUCTIVITY OF PLUM VARIETIES. CASE

The large expanding and feedback from the consumers who enjoy common plum (Prunus domestica) is due to the rusticity of the trees, namely are the modest requirements for soil, climate, growing technology and the ability to easily adapt to the special ecological conditions compared with other varieties. The slight propagation by seed, grafting on the most common rootstock, the relatively early entry in bearing (3-4 years after planting), the high production and the long life of the trees, even under less favorable soil conditions, like heavy soils, podzols etc. The experiences during the years 2010-2012 aimed to experiment some technologies destined to maximize the productive potential of some plum varieties grown in the Moara Domneasca farm and widespread in the current range of varieties. Two productive varieties were used: Stanley and Anna Spath, grafted on rootstock Mirobolan. The fertilization comprised the administration of Megasol product which is a soluble fertilizer which is suitable to be used in the advanced irrigation systems, in particular the drip irrigation, at a dose of 2.5 kg/ha and 5.0 kg/ha. The irrigation consisted of the dripping administration of 2l/h and, respectively 4 l/h.