Soybean nutritional status and seed physiological quality with swine wastewater

作者：Passarin Olga M; Sampaio Silvio C^*; Rosa Danielle M; dos Reis Ralpho R; Correa Marcus M

来源：Revista Brasileira de Engenharia Agricola e Ambiental, 2016, 20(1): 16-21.

DOI：10.1590/1807-1929/agriambi.v20n1p16-21

• mineral fertilization
• swine waste
• water reuse

Swine wastewater application is a practice that can become viable in agriculture, for minimizing fertilization costs and improving soil conditions. Therefore, it is essential to establish criteria that define appropriate application doses from the agronomic and environmental perspectives. The objective of this study was to evaluate the effects of swine wastewater doses associated with mineral fertilization on soybean nutritional status and physiological quality of seed. The experiment was conducted in the agricultural year of 2010/2011, using twenty-four drainage lysimeters in randomized block design in 4 x 2 factorial scheme, with four swine wastewater doses (0, 100, 200 and 300 m(3) ha(-1)) applied before sowing, associated with presence and absence of mineral fertilization, in three replicates. Leaves at the flowering stage were collected for determinations of N, P, K+, Ca+2, Mg+2, Cu+2, Zn+2, Mn and Fe. Symptoms of toxicity and nutritional deficiency were observed in the crop. Furthermore, higher doses of swine wastewater caused lower physiological quality in soybean seeds.

• 出版日期2016-1