Phosphorus Dynamics in Sugarcane Fertilized With Filter Cake and Mineral Phosphate Sources

Abstract

Organic residual material such as filter cake, combined with mineral phosphate fertilizers, may alter the soil phosphorus (P) bioavailability for sugarcane as a consequence of the competing effect in adsorption sites. This study aimed to quantify the changes in both the inorganic and organic soil P fractions as amended by phosphate fertilizer sources and filter cake and to link the P fractions to sugarcane response. An experiment was conducted in an Oxisol, in a randomized block design with factorial arrangement of 4 × 2, and three replications. Three P fertilizer sources (triple superphosphate, Araxá rock phosphate, and Bayóvar® reactive phosphate) plus a control (no P) were evaluated under both the presence and absence of filter cake. At the end of the second crop cycle, the following were measured: the cane yield, the tissue P content, and soil P fractions. All fertilizer sources were efficient in supplying P to sugarcane. Araxá rock phosphate generated a higher accumulation in moderately labile P, whereas the soluble triple superphosphate resulted in higher labile P. The filter cake, as a source of nutrients and organic matter, has an important contribution to maintain more available P for sugarcane absorption, especially when associated with triple superphosphate. The amount of P absorbed by sugarcane was correlated with the soil labile P (r = 0.58) and also with the inorganic P moderately labile (r = 0.42). Both fractions must be taken into account for a short- to medium-term availability of P for sugarcane in Oxisols.

Contribution of Using Filter Cake and Vinasse as a Source of Nutrients for Sustainable Agriculture—A Review

“…Some studies on sugarcane have highlighted the effects of applying filter cake as a source of P because it favors the physiological and nutritional aspects of the crop [31,60,61].…”

“…Filter cake, combined with phosphate mineral fertilizers, can alter the bioavailability of P from the soil to sugarcane plants due to the competitive effect on soil P adsorption sites. Thus, Soares et al [60], while assessing changes in soil organic and inorganic P fractions induced by phosphatic fertilizers in the presence and absence of filter cake, observed that this material, serving as a nutrient and organic matter source, plays a crucial role in maintaining more P available for plant uptake, especially when associated with the triple superphosphate fertilizer compared to Araxá natural phosphate and Bayóvar ® reactive phosphate.…”

Maximizando a Produção De Canaviais Brasileiros: Uma Abordagem Prática Para Implantação E Manejo Nutricional

“…Na literatura existem ensaios demonstrando formas mais eficientes de maximizar a utilização de adubos fosfatados, evitando desperdícios por meio das aplicações desenfreadas o qual grande parte pode ser perdida via fixação. Nesse contexto, de Aquino et al (2021) objetivaram quantificar as alterações na dinâmica de disponibilidade de fósforo em cana de açúcar, mediada pela aplicação de torta de filtro e adubos inorgânicos. Portanto, os autores realizaram as adubações utilizando três fontes de fósforo inorgânico: superfosfato tripo (TSP) (44% do P 2 O 5 e 41% solúvel em ácido cítrico a 2%), fosfato de rocha Araxá (ARP) ( 22% do P 2 O 5 e 4% solúvel em ácido cítrico a 2% ) e Bayóvar® fosfato reativo (BRP) ( 28% do P 2 O 5 e 14% solúvel em 2% de ácido cítrico, aliado a presença e a ausência da torta de filtro (7,5 t ha -1 massa seca), a qual as fontes inorgânicas foram aplicadas na fase de plantio na dose de 90 kg ha -1 P 2 O 5 .…”

Bacillus spp. e a promoção de crescimento vegetal: um enfoque na solubilização e mineralização de fosfato durante interação com cana-de-açúcar

“…Marrocos) e a utilização de microrganimos solubilizadores e mineralizadores de P, vem sendo amplamente estudadas e têm se mostrado alternativas promissoras para o uso mais eficiente do nutriente (Soares et al, 2021;Rosa et al, 2020;Soltangheisi et al, 2019;.…”

“…Além dessas, outras práticas que vem sendo amplamente estudadas são o uso de fontes menos solúveis de P, como o fosfato natural reativo (e.g. Bayovar e Marrocos) e fontes orgânicas como a torta de filtro, assim como a utilização de bioestimulantes compostos por microrganimos solubilizadores e mineralizadores de P (Soares et al, 2021;Rosa et al, 2020;Soltangheisi et al, 2019;.…”