%0 Journal Article
%T Relaci¨®n nitrato/amonio/urea y concentraci¨®n de potasio en la producci¨®n de tomate hidrop¨®nico
%A Parra Terraza
%A Sa¨²l
%A Mendoza Palomares
%A Guadalupe
%A Villarreal Romero
%A Manuel
%J Revista mexicana de ciencias agr¨ªcolas
%D 2012
%I Instituto Nacional de Investigaciones Forestales, Agr¨ªcolas y Pecuarias
%X tomato plants (solanum lycopersicum l. cv. ib-9) were grown in ahydroponic system in orderto evaluate the effect of the ratio nitrate, ammonium, urea (100/0/0, 85/15/0, 85 / 0/15 and 85/7.5/7.5) and the concentration of potassium (7 and 9 mol m-3) in fruit yield and mineral composition of plants. the fruit yield was unaffected by the treatments, so that it can substitute 15% of the total nitrate nitrogen to the nutrient solution with an equal percentage of nitrogen or urea, or a mixture of ammonia and urea, each at 7.5 %. the phosphorus content in leaves was significantly increased by the interaction of 85/15/0 and 9 mol of potassium m-3, while the calcium concentration in leaves 100/0/0 statistically decreased and 9 mol m-3 potassium.
%K solanum lycopersicum l.
%K nutrient content
%K hydroponic
%K nutrient solutions.
%U http://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S2007-09342012000100008&lng=en&nrm=iso&tlng=en