Brazilian Journals Publicações de Periódicos e Editora Ltda.
Abstract
The production of healthy sugarcane seedlings and varieties with high yield potential is the most costly aspect in setting up a sugarcane field. This study evaluated the effect of nitrogen fertilization at 0, 40, 80, 120 and 160 kg N ha-1 on plant nutritional status and seedling yield of two varieties of sugarcane: RB835486 and RB867515. The study was conducted in an experimental design of randomized blocks with four replications in a medium textured soil in the city of Mercês, located in the Mata Mineira region, from October 2015 to March 2016. The soil received liming and gypsum at a dose of 5.0 t of dolomitic limestone and 1.5 t of gypsum. The soil was then plowed, harrowed and subsoiled. We applied 100 kg P (229 kg P2O5) and 200 kg potassium to the bottom of the planting furrow. Nitrogen fertilization did not affect plant nutritional status and seedling yield. The plants were well nourished and the average yield was 65 t of seedlings per hectare.The production of healthy sugarcane seedlings and varieties with high yield potential is the most costly aspect in setting up a sugarcane field. This study evaluated the effect of nitrogen fertilization at 0, 40, 80, 120 and 160 kg N ha-1 on plant nutritional status and seedling yield of two varieties of sugarcane: RB835486 and RB867515. The study was conducted in an experimental design of randomized blocks with four replications in a medium textured soil in the city of Mercês, located in the Mata Mineira region, from October 2015 to March 2016. The soil received liming and gypsum at a dose of 5.0 t of dolomitic limestone and 1.5 t of gypsum. The soil was then plowed, harrowed and subsoiled. We applied 100 kg P (229 kg P2O5) and 200 kg potassium to the bottom of the planting furrow. Nitrogen fertilization did not affect plant nutritional status and seedling yield. The plants were well nourished and the average yield was 65 t of seedlings per hectare
