Nonpoint source pollution by swine farming wastewater in bean crop

Abstract

In order to verify the environmental impact of the application of swine farming wastewater in bean crop, an experiment was set up in the Experimental Farm of PUCPR -Toledo, PR, Brazil. Runoff and soil samples were collected at the end of the experiment. Four wastewater treatments were utilized during the experiment (50, 100, 150 and 200 m 3 ha -1 ) and the without wastewater as the control. The results demonstrate that (i) the amounts of potassium, phosphorus, and nitrogen in runoff are exponential, (ii) that phosphorus has a seven-fold polluting potential compared to potassium and threefold compared to nitrogen, and (iii) that the mobility of potassium in the soil profile is the largest, followed by those of nitrogen and phosphorus.Key words: water reuse, runoff, environmental pollution Poluição difusa da água residuária de suinocultura na cultura do feijoeiro RESUMOVisando verificar o impacto ambiental da aplicação de água residuária de suinocultura na cultura do feijoeiro, instalouse um experimento na Fazenda Experimental da PUCPR -Toledo, PR, Brasil; para isto, amostras do solo e do escoamento superficial foram coletadas ao final do experimento e se utilizaram quatro taxas de aplicação de água residuária durante o experimento, 50, 100, 150 e 200 m 3 ha -1 , sem aplicação de água residuária como testemunha. Os resultados demonstraram que: (i) as perdas de potássio, fósforo e nitrogênio no escoamento superficial são exponenciais; (ii) o fósforo apresenta potencial poluidor sete vezes maior que o potássio e três vezes maior que o nitrogênio; (iii) a mobilidade do potássio no perfil do solo é maior, seguida do nitrogênio e do fósforo.Palavras-chave: reúso de água, escoamento superficial, poluição ambiental

Swine farm wastewater and mineral fertilization in corn cultivation

“…In excess, K + can result in competition with Ca 2+ and Mg 2+ , and cause deficiency to plants (Malavolta et al, 1997). Doblinski et al (2010) and Kessler et al (2013b), in experiments using SFW in soybean and oatmeal, respectively, also observed increase of K + in the soil.…”

“…Many of these studies describe positive Maggi et al, 2011;Kessler et al, 2013b;Kessler et al, 2014) and negative (Doblinski et al, 2010;Sampaio et al, 2010;Meneghetti et al, 2012;Smanhotto et al, 2013;Tessaro et al, 2013) influences of SFW reuse on soil and its biota, plants, leachate and on runoff. Therefore, the challenge in wastewater management is to develop adequate application protocols, in order to minimize the polluting power of the activity and potentiate its efficiency as a liquid fertilizer.…”

Percolate Quality in Soil Cultivated With Application of Wastewater From Swine Slaughterhouse and Dairy Products

“…In this sense, some studies of reuse of agriculture show the capacity of nutrient displacement in the soil profile, as Maggi et al (2011) who observed an increase in the potassium concentration with an increase in the rate of application of swine wastewater (SWW), and Bebé et al (2010), who observed increments in electrical conductivity and sodium in solutions percolated through the soil submitted to coffee wastewater. Doblinski et al (2010) were evaluating with nitrogen, phosphorus and potassium leaching in soil cultivated with beans and fetirrigated with swine wastewater (SWW), verified that the mobility in the soil profile is higher for potassium, followed by nitrogen and phosphorus. Prior et al (2015) observed an increase in the concentration of phosphorus, copper and zinc when swine wastewater was applied.…”

Soybean nutritional status and seed physiological quality with swine wastewater

“…Thus, in order to search for positive and negative effects of the use of effluents in agriculture, research studies have focused on soil , leachate (Prior et al, 2009;Maggi et al, 2011), runoff (Bosco et al, 2008b;Doblinski et al, 2010;Wang et al, 2013) and on agricultural crops (Kessler et al, 2013a;2013b). In addition to these topics, some studies also concentrate on the soil biota (Tessaro et al, 2013;Brooks et al, 2014).…”