Biochar and swine wastewater: Effects on soil fertility of different textures and corn nutrition

• Published in: Revista Ceres Vol. 69; no. 1; pp. 102 - 112
• Main Authors: Cunha, Erivelton Gonçalves da, Guidinelle, Rebyson Bissaco, Rangel, Otacilio José Passos, Passos, Renato Ribeiro
• Format: Journal Article
• Language: English
• Published: Vicosa Universidade Federal de Viçosa-UFV, Revista Ceres 01-01-2022; Universidade Federal de Viçosa; Universidade Federal De Viçosa
• Subjects: Agricultural production; Agricultural wastes; Agriculture; AGRICULTURE, MULTIDISCIPLINARY; Animal wastes; biochar; Carbon; Charcoal; Coffee; coffee straw; Corn; corn nutrition; Crop residues; Evaluation; Experiments; Irrigation; New technology; nutrient availability; Nutrient content; Nutrients; Nutrition; Phosphorus; Plant production; Potassium; Soil fertility; Soil improvement; Straw; swine slurry; Toxicity; Wastewater; water reuse; Brazil; water reuse; biochar; corn nutrition; coffee straw; swine slurry; nutrient availability
• ISSN: 0034-737X; 2177-3491; 2177-3491
• DOI: 10.1590/0034-737x202269010013

According to Barbosa (2016), the biochar from coffee straw has a high concentration of potassium and phosphorus, enhancing its use in agriculture. For this reason, Ordinance N. 23-R of 2003, prohibits the use of coffee straw in the decomposition phase as a source of organic material, without adequate prevention measures, which is one of the limiting aspects of its agricultural use (Espírito Santo, 2003). [...]it is of great importance to study new technologies that enable the use of this residue in agriculture. The results obtained are encouraging because, in addition to attenuating the harmful effects of the salinity and toxicity of some ions, biochar improves soil attributes, the absorption of nutrients by plants increases plant production (Akhtar et al., 2015; Costa, 2017), and further enhances the agricultural use of wastewater from various activities. In view of this, it is expected that the agricultural use of biochar from conilon coffee straw and SW promotes an increase in the levels of nutrients in the soil and in corn plants, culture that was chosen for evaluation, due to its fast cultivation cycle and socioeconomic importance of world order, being used in human and animal feeding, its insertion in this study is relevant in order to enrich the literature. [...]this study aimed to evaluate the influence of doses of biochar from conilon coffee straw, combined or not with SW diluted to 50%, in the nutrient content in soils of different textures and in the nutrition of the corns plants.