Sowing date of palisadegrass intercropped with grain sorghum and soybean yield in succession

Abstract

The use of intercropping sorghum-palisadegrass for grain and straw production has become an advantageous cultivation option, can provide improvements in physical and chemical soil properties, maximizes production and income to the growers. There are still many management gaps to be improved in this intercropping in order that grower has the best outcome. Considering this, the objective of this study was to evaluate different sowing dates of palisadegrass in relation to sorghum, and evaluate the yield of soybean cultivated in succession. Palisadegrass was sown in monocrop and also between the lines of sorghum at different times (0, 15 and 25 days after sowing sorghum), as well the sorghum in monocrop. Soybeans were grown in succession on the straw of the mentioned treatments. It was evaluated biomass production and grain yield. Sowing palisadegrass and sorghum on the same day reduced sorghum grain yield and the palisadegrass biomass production. However, if palisadegrass are sowed 15 days after sorghum sowing, did not reduce the sorghum grain yield. Also, if the producer aims to produce sorghum grains, it is better to delay the sowing of palisadegrass in relation to sorghum. Although, if the producer aims to produce residual dry biomass, it is better to sow palisadegrass on the same day as sorghum or monocrop palisadegrass. Soybean yield did not differ among treatments when grown on different straws in the first year of cultivation.

Do cover crops improve the productivity and industrial quality of upland rice?

“…These benefits are important mainly for the Brazilian Cerrado, the African savannas, and Australia, because rain is often scarce in these regions for 6 mo (Crusciol, Nascente, Borghi, Soratto, & Martins, 2015), making straw production difficult. Furthermore, the climatic conditions during summer (high humidity and temperature) favor rapid decomposition (Dias, Umburanas, & Sena Junior, 2018). Because it is difficult to produce straw and keep the soil covered under these conditions, the possibility of cultivating cover crops (Arf, Portugal, Buzetti, Rodrigues, & Sá, 2018) in winter or spring, with the use of irrigation, should be determined.…”

Lasting effect of Urochloa brizantha on a common bean-wheat-maize rotation in a medium-term no-till system

“…These limitations can negatively impact crop production by decreasing vegetative metabolism and crop yields, especially in tropical regions such as the Brazilian Cerrado and African savanna (Pariz et al, 2017b). In these regions, the dry autumn/winter period hinders residue production, and the hot, rainy spring/summer period accelerates the decomposition of residues on the soil surface (Pariz et al, 2017b;Dias et al, 2018;Portugal et al, 2020). Therefore, no-till systems should include diverse crops with greater potential for litter production.…”