Resumen

MAIA, Nilson Borlina; CARMELLO, Quirino Augusto Camargo  y  MARQUES, Marcia Ortiz Mayo. AUTOMATIC NUTRIENT SOLUTION DELIVERY FOR HYDROPONIC PLANT CULTIVATION IN POTS. Sci. agric. [online]. 1999, vol.56, n.1, pp. 103-110. ISSN 0103-9016.  http://dx.doi.org/10.1590/S0103-90161999000100016.

This paper describes an automatic nutrient solution delivery system, developed for plant nutrition research. This system includes tanks with individual pumps controled by level-switches and a timer. Mentha crispa cultivated in the automatic sistem produced over three times more as compared to the conventional sistem. Changes in nutrient content of leaves and roots were observed.

Palabras llave : nutrient solution; Mentha crispa; plant nutrition; hydroponics; essential oil.