Efeito da água residuária de fecularia de mandioca na produtividade da cultura do feijão.

Abstract

The objective of the accomplishment of the present work was of evaluating the effects of the levels of water residuária of cassava fecularia in the culture of the bean plant. He/she behaved the experiment in the Campus of the Sandstone, State University of Maringá, municipal district of Cidade Gaúcha, latitude 23°22' South, longitude 52°56' West and medium altitude of 404m. The effects of the following levels of water residuária were evaluated in m3ha-1: T0 (0), T1(150), T2(300), T3(450), T4(600) and T5(750) and 150 kg have-1 of NPK in the formulation 4- 20-20. The experimental delineamento was of blocks at random. The water residuária presented the following chemical composition: Calcium, magnesium, potassium and match 6,81; 30,4; 353,4; 2,93 mg dm-3, respectively and the pH 7,96. THE bean was sowed October 14, 2005 and crop was accomplished on January 13, 2006. The applications of water were accomplished in agreement with the need hídrica of the culture, in the experimental units in that the treatments were completed. The productivity was evaluated in four times during the cycle of the culture. The value of the obtained maximum productivity was of 1.867 kg have-1 for the treatment in that 450 m3ha-1 was applied. There is adjusted equation of second degree with R2 0,0004 didn't present significância at the level of 5% of probability