In order to know the dynamics of calcium absorption in sunflower seedlings, an experiment was established under laboratory conditions, at the Universidad Tecnologica de Tehuacan, to evaluate five levels of Ca(CO3)2 in the solution. The variables were: absorbed calcium, pH, electrical conductivity, root length and volume, which were evaluated under a completely randomized design and four replicates (5x4) = 20 experimental units. |