Efecto del fertirriego mineral y orgánico en dos accesiones del cultivo de tomate de árbol (Solamum betaceum Cav, bajo condiciones controladas; sobre algunas propiedades químicas del suelo, características morfológicas y productividad del cultivo

Abstract

Abstract: Tree tomato (Solanum betaceum) faces problems such as an inappropriate production and trading at both the local and international levels. An alternative is the greenhouse production, diversification, and trading. This work aims at determining the effects of mineral and organic fertilization both in and out greenhouse. In the mineral treatment there was a reduction of both pH and nitrogen in soil; favoring the accumulation of organic matter, phosphorus, and potassium. In the organic treatment there were not significant differences among the later parameters. Moreover, cultivation conditions affected plant morphology independently of the treatment: stem length was higher outside than in the greenhouse; while both stem and crown diameters reached their highest values in the greenhouse. In relation to productivity, treatments within the greenhouse showed the highest values compared to the controls (TO-21: 8.619,90; TM-21: 7.544,63 kg/ha; T-21: 4.271,06; and, T-20: 4.850,62 kg/ha); and the latter controls were significantly higher when compared to controls outside the greenhouse (TC-21: 2.302,99; TC-20: 3.033,34 kg/ha). Finally, predictions about trading point to the lack of profit at the local level while at the supermarket level benefits are expected only at the third year of production (0,243,89 USD)