Abstract
ABSTRACT: The use of mineral phosphate fertilizers associated with organic residues can improve fertilizer use efficiency and consequently decrease their usage costs. Soil application of filter cake (FC) can provide nutrients and enhance physical quality. This study aimed to evaluate the effects of different phosphate fertilizers [rock phosphate (RP) and triple superphosphate (TSP)] applied at different rates (90 and 180 kg ha-1 P2O5) associated with filter cake (10 Mg ha-1 dry matter) on the soil phosphorus (P) fractions after two [...]
Highlights
Phosphorus is an essential element for food and biofuel production (Jarvie et al, 2015)
This study aimed to evaluate the effects of different phosphate fertilizers [rock phosphate (RP) and triple superphosphate (TSP)] applied at different rates (90 and 180 kg ha-1 P2O5) associated with filter cake (10 Mg ha-1 dry matter) on the soil phosphorus (P) fractions after two consecutive seasons of sugarcane in two distinct soils, sandy and clayey
We investigated the simple effect of filter cake (FC) addition on sugarcane yield and soil P fractions
Summary
Phosphorus is an essential element for food and biofuel production (Jarvie et al, 2015). Only 10-30 % of water soluble P sources applied to P-fixing soils is taken up by plants in the year of application, and the remainder is adsorbed by soil particles, becoming less available for plant uptake (Raghothama, 1999; Savini et al, 2016). This rapid adsorption increases in proportion to the contact time of P sources with soil and their solubility (Novais et al, 1980). Sugarcane is forecast to expand by 38 % over the three decades (Withers et al, 2018)
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