Use of cassava wastewater in Capsicum chinense production

Marcos Roberto Santos Correia,Francisco Alisson da Silva Xavier,Luciano da Silva Souza,Daniel Ribeiro Gonçalves,Willian Fernandes de Almeida,Andrezza Grasielly Costa,Alide Mitsue Watanabe Cova

doi:10.1590/1983-40632020v5064756

Abstract

ABSTRACT The use of resources derived from the agricultural property itself to meet the needs of producers promotes the reduction of costs with commercial inputs and recycling of by-products, among them the liquid waste from the cassava flour production, called cassava wastewater, which can be an important fertilization source. This study aimed to evaluate the growth and production of Capsicum chinense Jacq., as a function of cassava wastewater doses associated with mineral fertilizer proportions. The experiment was conducted in a greenhouse, in a completely randomized design, with treatments distributed in a 3 x 5 factorial scheme, corresponding to 3 doses (0, 50 and 100 %) of the mineral fertilization recommended for the crop and 5 doses (0, 25, 50, 100 and 150 m³ ha-1) of cassava wastewater, with 4 replicates. The cassava wastewater doses influenced the crop yield, showing a linear trend. The dose of 150 m3 ha-1 promoted a yield equivalent to that obtained with the application of 100 % of the mineral fertilization recommended for this crop, thus enabling the partial or total replacement of this fertilization by cassava wastewater.

Highlights

The present study aimed to evaluate the growth and yield of C. chinense, as a function of cassava wastewater doses associated with mineral fertilizer proportions
The study was conducted in a greenhouse of the Universidade Federal do Recôncavo da Bahia, in Cruz das Almas, Bahia state, Brazil (12o39’48.84”S, 39o5’15.17”W and altitude of 220 m), from May to October 2019
Plastic pots with capacity of 10 dm3 were filled with Latossolo Amarelo Distrocoeso típico (Densic Ferralsol; Oxisol), according to the classification performed by Jacomine et al (1977) and updated according to Santos et al (2018), collected in the 0-0.20 cm layer

Summary

Introduction

Peppers are used worldwide for the most diverse purposes. In Brazil, its fresh consumption is quite pronounced in the North and Northeast regions, with the ‘Malagueta’, ‘Tabasco’, ‘Bode’, ‘Biquinho’, ‘Cumari do Pará’, ‘Habanero’ and ‘Murupi’ cultivars being the most produced ones. Has stood out in the market, due to its peculiar aroma, characteristic flavor and absence of pungency, and can be consumed both fresh and preserved (Heinrich et al 2015, Julião et al 2015, Rodrigues 2016). Peppers should be grown in deep, light, drained and preferably fertile soils, with fertilization recommendations of 40-60 kg ha-1 of N, 50-600 kg ha-1 of P2O5 and 240 kg ha-1 of K2O (Costa & Henz 2007).

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Results