Phosphorus Sources: Effects on Growth and Phosphorus Fractions of Curauá (Ananas erectifolius L. B. Smith)

Abstract

This work aimed to evaluate the effects of different phosphorus (P) sources on the initial growth and distribution of P fractions in curauá’s (Ananas erectifolius L. B. Smith) plants under greenhouse conditions. The treatments evaluated the effect of 250 mg dm⁻³ of P on curauá plants using five P sources: triple superphosphate (TSP), Yoorin termophosphate (YTP), Arad rock phosphate (ARP), Araxá rock phosphate (AR), and phosphoric acid (PA), plus treatment control (without P supply). The initial growth of curauá was positively affected by P supply; however, the different P sources had similar effects on nutrient uptake and growth of curauá plants. Curauá plants accumulate P preferentially as organic fraction.

Keywords:

• P fertilization
• phosphorus forms
• soil fertility