Use of cassava wastewater in Capsicum chinense production

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.

Cassava wastewater valorization for the production of biosurfactants: surfactin, rhamnolipids, and mannosileritritol lipids

“…Vieites (1998) evaluated the use of cassava wastewater as a fertilizer in the cultivation of tomatoes, while Lima and Valente (2017) tested it in the cultivation of bells peppers; in both works, when used in the proper proportion, this natural fertilizer provided an increase in productivity and size of the produced fruits. According to Costa et al (2020), cassava wastewater can be used for partial or total replacement of mineral fertilizer-biquinho pepper (Capsicum chinense). The authors proved that a dose ca.of 150 m 3 ha −1 was equivalent to mineral fertilizer (urea (40 kg ha −1 ); potassium sulfate (180 kg ha −1 ); single superphosphate (600 kg ha −1 ); boric acid (1 kg ha − 1 ); and zinc sulfate (30 kg ha −1 ).…”

Curly lettuce production using cassava wastewater as a potassium source

“…High volumes of CWW are generated by the cassava flour industries in Brazil and around the world; however, this byproduct is generally discarded in unproductive areas of the soil or waterways (Souza et al, 2019;Malik et al, 2020;Oghenejoboh et al, 2021). Conversely, some studies have already been conducted showing the beneficial effects of CWW application on corn (Barreto et al, 2014;Ramos et al, 2018), Capsicum chinense (Costa et al, 2020), and lettuce (Costa et al, 2021b).…”

Water consumption and water use efficiency of ‘Biquinho’ pepper in hydroponic cultivation with brackish water

“…The exact knowledge of nutritional requirements for C. chinense is still incipient; therefore, normally it has been performed similar to species from the same family Solanaceae such as bell pepper (OLIVEIRA et al, 2014;COSTA et al, 2020) or based on the proportion of nutrients in the aerial parts of the plant or on the contents in dry matter (FURLANI et al, 1999b). In leaves, adequate levels of macronutrients are between 30 to 60 g kg -1 of N, 3 to 7 g of P, and 40 to 60 g kg -1 of K (TRANI, 2014).…”