Effect of green manure and chemical fertilization on three varieties of sugarcane in sandy loam soils of the Municipality Fernández Alonso, Bolivia

Abstract

The research was conducted on the property of the National Sugar Cane Center (CENACA), located in the municipality of Fernández Alonso, Santa Cruz department, Bolivia, conducted under the statistical design of sub-divided plots of three levels (green manures, varieties of sugarcane and, with and without fertilization plots), within the framework of the objective of Determining the response of three varieties of sugarcane -RBB 77- 26, UCG 90-20 and UCG 96-10- on green manure stubble (crotalaria, sorghum and fallow). Response variables evaluated the number of stems (NT), height stem (ATM), stem diameter (DT) and weight stem (PTM), collaterally, the percentage of sucrose (PS) and Yield (Y). The statistical results indicate a significant difference between treatments, by means of a comparison of means, according to the DMS test (minimum significant difference) at 5% probability. According to the results, the crotalaria stubble had a greater effect on the NT, ATM and PTM in relation to the sorghum stubble. The best results were given on the crotalaria stubble in both the yield and sugarcane levels, highlighting the UCG 96-10 variety, followed by the UCG 90-20 and RBB 77-26 varieties respectively, in addition, if there is a response to fertilization with N, P and K.