Fertilization with filter cake and micronutrients in plant cane

Abstract

SUMMARYThe response of sugarcane to application of micronutrients is still not very well known. In view of the need for this information, the aim of this study was to evaluate the application of the micronutrients Zn, Cu, Mn, Fe, B, and Mo to plant cane in three soils, with and without application of filter cake. This study consisted RESUMO: ADUBAÇÃO COM TORTA DE FILTRO E MICRONUTRIENTES

The impact of applications of sugar cane filter cake and vinasse on soil fertility factors in fields having four different crop rotations practices in Brazil

“…For each ton of ground sugarcane utilized, 30 to 40 kg of cake is produced. Filter cake is mainly applied as a fertilizer in the sugarcane-planting furrow (Adorna et al, 2013).…”

“…Vinasse and filter cake both act as rich sources of nutrients for the growth of soil microorganisms and adding these products to soil has been shown to significantly impact their populations (Adorna et al, 2013). This in turn affects the soil composition in terms of the rates of C, N, and P mineralization (Pupin & Nahas, 2011).…”

Filter cake enhances soil fertility and initial growth of wheat cultivated in a sandy Ultisol

“…The filter cake is obtained in the filtering process during the refinement of sugar, at a rate of 30kg of filter cake each tonne of sugar (Adorna et al, 2013). This residue can be used as a fertilizer because it is rich in nutrients such as phosphorus (1.1%), nitrogen (2.0%) (Vitti et al, 2006;Fravet et al, 2010), potassium (0.3%), magnesium (0.6%) and calcium (2.1%) (Prado et al, 2013).…”

Biochar e fertilizantes especiais no crescimento inicial da cultura do milho

“…Suas características principais são a alta umidade, alto teor de matéria orgânica, fósforo, cálcio, magnésio e nitrogênio, podendo assim ser utilizada como alternativa complementar para adubação nas lavouras (SANTOS et al, 2011;AGEITEC, 2011). Segundo Adorna et al (2013) para cada tonelada de cana de açúcar processada, são geradas 30 a 40 kg de torta de filtro, podendo ser reaproveitado como fertilizante orgânico e aplicado no campo. Santos et al (2011) descreve ainda que a liberação dos nutrientes presentes na torta de filtro, principalmente o fósforo e o nitrogênio, se dá principalmente através da mineralização gradativa e também pela transformação deste material pelos microrganismos presentes no solo.…”