Linseed response to treatment with swine wastewater as biofertilizer

This study aimed to verify the linseed responses when subjected to different doses of swine wastewater (SWW). The experiment was conducted in the city of Cascavel, Parana state, Brazil. The treatments considered were: T1 control sample; T2 5; T3 10; T4 20; T5 30 and T6 40 m 3 ·ha -1 SWW. The sowing was performed in a 12 m 2 area. After 180 days of cultivation stem diameter, plant height, number of capsules, stem branch number and fresh and dry weight of the aerial part were measured. The SWW application proved to have a positive effect on the linseed culture with an application of 10 m 3 ·ha -1 . The application of 40 m 3 ·ha -1 inhibited the linseed development. The immobilization of nutrients and the shortage of oxygen in the soil may have been the main cause of the linseed development decrease in applications exceeding 10 m 3 ·ha -1 of SWW.