N-Fertilization Adjustment in Sugarcane Crop Cultivated in Intensive Mechanization

Abstract

Currently sugarcane is cultivated in Brazil in intensive mechanization during all cultural practices, since planting, harvesting until fertilizer applications. In this sense, to increase the sugarcane yield which it was stagnant along the last 5 years, it is necessary looking for alternatives to management the crop and maximize the yield gain. One alternative is trough the adjustment the N-fertilization in green cane crop according to the IPNI guidelines-"4R Nutrient Stewardship System" (International Plant Nutrition Institute-IPNI) program which seeks to apply fertilizer in the right location, at the right time, in the right amount and the right source. Therefore, the main goal of this chapter is shows these alternatives and the yield gains that it was obtained in researches during 2013-2017.

Depth-dependent Influence of Biochar Application on the Abundance and Community Structure of Diazotrophic Under Sugarcane Growth

“…It contributes considerably to the sugar and biofuel-producing industries [1][2] . Fertilization is a crucial agricultural approach that not only improves plant nutrient storage but also simultaneously alters soil attributes and microbial communities [3][4] . In the past few decades, extensive fertilization, especially nitrogen fertilizer, has been used to raise sugarcane production to meet the growing sugar demand [5][6] .…”

Impactos ambientais associados ao uso de agroquímicos e à remoção da palha da cana-de-açúcar para produção de bioenergia

“…A adoção desta prática é necessária pois a competição das ervas daninhas por nutrientes, água, luz e espaço (Kaur et al, 2018) pode reduzir a produtividade da cultura de cana-açúcar (Procópio et al, 2015). Já o uso de fertilizantes nitrogenados é importante para aumentar o rendimento da produtividade da cana-de-açúcar (Castro et al 2019;Otto et al, 2016), pois o nitrogênio (N) é um nutriente essencial para o processo fotossintético (Evans e Clarke, 2019).…”