“…Millet (Pennisetum glaucum L.) and showy rattlebox (Crotalaria spectabilis Roth.) have been studied with respect to soil cover rate, decomposition rate, nutrient content, and phytomass production (Passos et al, 2017;Scavazza et al, 2018;Ferreira et al, 2019;Pfüller et al, 2019). Also, the effects on soil chemical and physical properties (Passos et al, 2017;Sousa et al, 2017), nematodes (Debiasi et al, 2016;Nascimento et al, 2020), weeds (São Miguel et al, 2018) and, consequently, on soybean (Debiasi et al, 2016;São Miguel et al, 2018) and okra (Nascimento et al, 2020) productivity have been investigated.…”