<b>The effect of filter cakes enriched with soluble phosphorus used as a fertilizer on the sugarcane ratoons

Abstract

ABSTRACT. The objective of this work was to evaluate the effect of fertilization with filter cakes enriched with soluble phosphate on sugarcane ratoons. The experiment was performed from November 2007 to December 2009 at Presidente Prudente, São Paulo State, Brazil, in a completely randomized block design in a 4 x 4 factorial arrangement, with the first factor consisting of doses of filter cake (0, 1, 2 and 4 Mg ha -1) and the second doses consisting of phosphorus fertilizer (0, 50, 100, 200 kg ha -1 of P 2 O 5 ) with 4 replicates. The following variables were evaluated: the number of tillers per meter, the leaf area index, soluble solids (ºBrix), stalk and sugar yield in the second crop cycle. We found a residual effect in the sugarcane ratoon after applying filter cakes enriched with soluble phosphate in the planting furrow. The initial tillering, leaf area index, stalk and sugar yield in the cane ratoon benefit from the application of filter cakes and soluble phosphate in the planting furrow. The best combination is filter cakes at a dose between 1.0 and 2.0 mg ha -1 with 100 to 200 kg ha -1 soluble phosphate applied at planting. This method obtains higher stalk and sugar yields for sugarcane ratoons.

The impact of sugarcane filter cake on the availability of P in the rhizosphere and associated microbial community structure

“…Previous studies (Almeida Junior et al., ) have similarly reported a positive effect of FC applied to sugarcane, mainly through an increase in the levels of P, K and Cu in shoots. Moreover, FC addition has also been shown to influence various soil physical and chemical properties including, soil CEC, water retention capacity, soil aeration and reduced concentration of aluminium in soil (Korndörfer & Anderson, ; Santos et al., ; Torres, Sartori, Américo, & Ferreira, ). Collectively, this suggests that FC is an important organic amendment for ameliorating degraded soils and to provide plant nutrients, although the precise mechanisms associated with increased nutrient availability in soil, either directly or indirectly from FC, remain poorly understood.…”

“…Several studies have investigated the interaction of FC and mineral P sources as a bio‐fertilizer management option to improve soil fertility for sugarcane production (Bokhtiar, Paul, & Alam, ; González, Prado, Hernández, Caione, & Selva, ; Santos, Silva, Tiritan, & Crusciol, ). Whilst these studies have generally shown positive interaction for effectiveness of FC in P fertilization, little is known about the direct effects of FC on microbial interactions and P availability in the sugarcane rhizosphere, which is the zone of soil where plants have large impact on soil processes (Pinton, Varanini, & Nannipieri, ).…”

Effects of Biochar on the Emissions of Greenhouse Gases from Sugarcane Residues Applied to Soils

“…Native vege- tation (seasonal semideciduous forest) soils were chosen to avoid residual effects of filter cake and vinasse application on soil properties [21] [22] [23]. These soils were sampled at the 0 -20 cm layer, air-dried, homogenized, and sieved to 2 mm before installing the experiment.…”

Effect of reducing chemical fertilizer and using organomineral fertilization on nutritional behavior and vegetative growth of olive trees

“…Actual results in some studies showed the benefits of organomineral fertilization in agriculture, such as in the production of coffee crop (FERNANDES et al, 2007), the growth of rootstock 'Rangpur' lime (CARNEIRO et al, 2011), flower production (FARIAS et al, 2013) and sugarcane rations (SANTOS et al, 2014). However, the effect of fertilizer is linked to the fertilizer formulation and the species, or even the variety, that is being fertilized.…”