Phosphorous availability in Argisols and suffi ciency range in sugarcane in the
            Northeast of Brazil

Costa, Daniela Batista; Freire, Fernado José; Lemos, Janyelle de Oliveira; Silva, Suellen Roberta Vasconcelos da; Bezerra, Nathalia Sobral; Andrade, Patrícia Karla Batista de; Andrade, Joel José de

doi:10.5935/1806-6690.20230063

Cited by 1 publication

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“…Some current issues with commercial P fertilizers include their potential environmental impact through runoff and water pollution, limited availability of phosphate rock reserves, and the high cost of production and transportation. The low efficiency of phosphate fertilizer requires an increase in the amount of P applied to the crops [11]. This scenario increases the pressure to improve P use efficiency.…”

Section: Introductionmentioning

confidence: 99%

Coffee Orchard Response to Enhanced Efficiency Phosphate Fertilizer

Reis Jr,

Guelfi,

Souza

2023

AJPS

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Phosphorus (P) plays a crucial role in plant growth by aiding in the development of strong roots, promoting flower and fruit formation, and aiding in photosynthesis. Studies to improve P fertilizers efficiency in coffee orchards are necessary due to the need for better efficiency and the lack of information on enhanced efficiency P fertilizers. This study aimed to investigate the effect of MAP coated with anionic polymers (Policote) on coffee orchard development. A coffee trial was carried out in a randomized block design with three replications. The treatments, applied at coffee planting, were arranged in an incomplete factorial (2 × 4) + 1, using two P sources (MAP and Policote coated MAP), four P rates (40, 80, 120, and 160 g P 2 O 5 plant −1 ) and control (without application of P fertilizer). Plant height was evaluated in the 2016/2017, 2017/2018, and 2018/2019 seasons, while coffee bean maturation, yield, and agronomic P efficiency use were evaluated in the last two seasons. P fertilization did not affect coffee bean maturation and increased coffee yield in 31-month-old plants when differences among P sources and rates were observed. Using Policote-coated P fertilizer resulted in higher yields at the same P rate, as well as similar yields at a lower P rate, compared to conventional fertilizer. Policote-coated P fertilizer can be used as an enhanced efficiency fertilizer and is an efficient way to deliver required P to plants. The target for reducing farm investment, increasing agricultural profits, preserving phosphatic rock reserves, and avoiding the overuse of phosphate fertilizer could be realized through the rational use of enhanced efficiency fertilizers.

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Section: Introductionmentioning

confidence: 99%