ROCHA, Emerson L. G.; FREITAS, Paulo S. L.; STIPP, Oélcio J.; SOUZA, Larissa B.; SILVA, Gleidson B.; SIQUEIRA, Marcos L.
Résumé:
The cassava is one of the more cultivated in the state of Paraná, mainly in the
northwest area of the state. With that it is obtained a great amount of originated residual effluent of
the process of industrialization of the cassava, carting environmental problems and mainly
pollution in the courses d`água. Looking for to minimize these caused impacts, it was objectified in
this work to study the use of different levels of effleunt as source of nutrients and water for corn
crop. The experiment was accomplished in the Campus of Arenito of the State University of
Maringá, municipal district of Cidade Gaúcha PR, using the corn crop under the conventional
system. The application of water was accomplished 150 m³ ha
-1
divided in four applications being
applied manually. The levels of effluent were of 0; 150; 300; 450; m³ ha
-1
, and the productivities
were 4507,59; 4770,42; 4826,27; 4802,31; 4991,14 Kg ha
-1
respectively, in the humidity of 13%.
After it analyzes statistics we noticed that there was not significant difference among the
productions, in function of the levels of effluent, ending that is unviable the application of this,
because the productivity just increases 9,7% among 0 and 600m³ ha
-1
of application.
