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Title: | Enhanced efficiency phosphorous fertilizers on the coffee crop in sandy soil |
Keywords: | Phosphorus Efficiency use Apparent P recovery efficiency Café - Adubos e fertilizantes Fertilizantes fosfatados Fósforo |
Issue Date: | 2021 |
Publisher: | AI Publications |
Citation: | GUELFI, D. R.; REIS JUNIOR, R. dos A.; CHAGAS, W. F. T. Enhanced efficiency phosphorous fertilizers on the coffee crop in sandy soil. International journal of Horticulture, Agriculture and Food Science (IJHAF), Jaipur, v. 5, n. 1, p. 19-26, Jan./Feb. 2021. DOI: https://dx.doi.org/10.22161/ijhaf.5.1. |
Abstract: | Crops are generally cultivated in deficient phosphorus soils in the tropics. Phosphorus (P) is essential to crop development and has a low efficient use in fertilizer management. The need to increase P fertilization efficiency justify studies evaluating the performance of enhanced efficiency P fertilizers. A greenhouse experiment was carried out to evaluate coffee growth, plant P contents, and agronomic P fertilization efficiency. The treatments, randomly designed with three replicates, were arranged in a 2x5 factorial scheme: two P sources (Triple Superphosphate – TSP and Policote coated TSP – TSP+Policote) and five P rates (0; 5; 10; 15 and 20 g P2O5.plot-1). The experimental plot was formed by a pot with 14 kg of sandy soil. All treatments were homogenized with the plot's soil. Then, coffee seedlings were transplanted. Coffee growth, plant P content and accumulation, and agronomic P fertilization efficiency were affected by phosphorus fertilization. TSP+Policote promoted higher leaf and plant dry matter yield and P accumulation in coffee than conventional P fertilizer. The higher agronomic efficiency and apparent P recovery efficiency index, observed with TSP+Policote, explain the higher coffee plant growth observed with Policote coated P fertilizer. The obtained results demonstrated that Policote coated P fertilizer can be used as an enhanced efficiency fertilizer. Results show that Policote coated P fertilizer is a more efficient way to deliver the required P to plants. |
URI: | http://repositorio.ufla.br/jspui/handle/1/49894 |
Appears in Collections: | DCS - Artigos publicados em periódicos |
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