CE:3714 CF: cag033162083
SCIENTIFIC ARTICLE
Phosphorus sources, filter cake and microorganisms on the morphometric variables in tomato seedlings
Fuentes de fósforo, cachaza y microorganismos sobre las variables morfométricas en plántulas de tomate
Ivis Díaz Aguila1 , Leónides Castellanos González2 , Mairely Sarduy Díaz1 , Layda Toledo Vazquez3 , Cid Naudi Silva Campos4 , Renato de Mello Prado4 , Enrique Parets Selva2 y Leandro Rossato Moda4
1 Empresa Cítrico Arimao, carretera a Cienfuegos # 137 esquina a carretera Las Moscas. Cumanayagua, Cienfuegos, Cuba. CP 57600.
2 Centro para la Transformación Agraria Sostenible, Facultad de Ciencias Agrarias (CETAS), Universidad de Cienfuegos, Cuatro caminos, Carretera a Rodas km 4, Cienfuegos, Cuba. CP 55100.
3 Estación Experimental de Suelos y Fertilizantes del MINAG, Barajagua, Cumanayagua, Cienfuegos, Cuba. CP 57600.
4 Faculdade de Ciências Agrárias e Veterinárias, Universidade Estadual Paulista (FCAV/UNESP). Via de acesso Prof. Paulo Castellane, s/n, Jaboticabal, SP, Brazil. CP 14884-900.
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ABSTRACT
The present work aims to evaluate the effect of three phosphorus sources, filter cake and microorganisms on the morphometric variables in tomato seedlings (Solanum lycopersicum L.). The investigation was carried out under greenhouse conditions in the Citrico Arimao Enterprise. A Brown soil without carbonate differentiation was used, to which was carried out an agrochemical analysis previously. An experimental design totally randomized was used, with factorial arrangement 3 x 3 + 1, and three repetitions. As a source of phosphorous triple superphosphate, simple superphosphate and a natural phosphoric rock were used and the three levels of organic fertilization consisted of the application of filter cake, filter cake enriched with Azotofos biofertilizer and without filter cake. At 45 and 60 days, the morphometric variables, height, diameter of the stall, the mass of the aerial part and of the root were measured. Variance analyses for all the variables were carried out. The media were compared by Tukey test with a level of error probability of 5 %. The ASISTAT statistical package was used. The morphometric variables, height, diameter of the stall, fresh mass of the aerial part and roots of the tomato seedlings at 45 and 60 days increased with the addition of filter cake, enriched or not, and the application of the phosphoric rock.
