Chemical characteristics of soil after application of tannery sludge as fertilizer in the sugarcane plant crop

Abstract

The aim of this study was to examine the effects of applying tannery sludge as fertilizer in the sugarcane plant crop and its impact on soil chemical characteristics. The soil in the experimental area was classified as dystrophic red latosol type (Oxisol). The experiment was set up as a randomized-block design with four replicates, with treatments represented by five doses of tannery sludge (0, 4500, 9000, 13500 and 18000 kg ha-1) plus one treatment with inorganic fertilization (90 kg ha-1 N, 180 kg ha-1 P2O5 and 120 kg ha-1 K2O). Soil chemical characteristics and sugarcane nutrition and production traits were evaluated. Tannery sludge application increased the organic matter, Ca, S and Na contents in the soil layers of 0-0.20 and 0.20-0.40 m. Heavy metal contents in the soil were not influenced by the treatments. Tannery sludge showed the potential to supply important macronutrients, especially at the highest doses tested. Tannery sludge doses between 10000 and 16250 kg ha-1 provided the greatest plant height and diameter and the highest number of stalks. The highest sugarcane yield, 149.55 t ha-1, was obtained with the sludge dose of 18000 kg ha-1.

Nano Zinc-Oxide Enhanced Photosynthetic Apparatus and Photosystem Efficiency of Maize (Zea Mays L.) in Sandy-Acidic Soils

“…It could be presumed as an optimum concentration under the current soil conditions. Crop response to applied fertilizer varies according to soil conditions, type, source and amount of fertilizer (Kihara et al, 2016;Islam et al, 2018)) and mode of application (Santos et al, 2020). However, methods of application in our study were non-significant.…”

Temporal Stability of Soil Microbial Properties in Responses to Long-Term Application of Compost Obtained from Tannery Sludge

“…Tannery sludge is a solid waste generated by tanning industries that has been recommended to be applied in soils. Its successive application causes modification in the soil properties, mainly increasing soil pH, organic C, and chromium (Cr) content [1][2][3]. On the one hand, the increase in organic C improves soil properties, e.g., promoting better soil structuration, particle size, aeration, soil fertility and health [4].…”

Biossólido de curtume aumenta a disponibilidade de nutrientes e melhora o crescimento de mudas de eucalipto

“…Para a aplicação de biossólidos de curtumes em áreas agrícolas, adotou-se a premissa de que, desde que atendidos os critérios que garantam a minimização de riscos de poluição, tal prática deve proporcionar benefício agrícola para a cultura e/ou melhoria na utilização da área (CETESB, 1999). Alguns estudos propuseram o uso agrícola do biossólido de curtume como método alternativo de fertilização (SANTOS et al, 2020;BERILLI et al, 2018). Por outro lado, foi relatado que a aplicação de biossólido de curtume pode aumentar as concentrações de Cr no solo (SANTOS et al, 2014), o que poderia limitar seu uso para fins agrícolas, uma vez que esse elemento pode ser facilmente absorvido pelas plantas (GONDEK, 2008).…”