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| Dias,Kaio Gonçalves de Lima; Neto,Antônio Eduardo Furtini; Guimarães,Paulo Tácito Gontijo; Reis,Thiago Henrique Pereira; Oliveira,Cesar Henrique Caputo de. |
| Phosphorus (P) is considered one of the nutrients that most limits crop yields, especially in soils with an advanced degree of weathering. To evaluate P dynamics and availability in soil resulting from various P doses and sources and to assess the resulting P content of coffee leaves and the final coffee yield, an experiment was conducted in the municipality of Três Pontas, MG, Brazil, in a Red Argisol (Ultisol) area. Fertilization, except for P fertilization, was performed based on the soil analysis results. The annual P doses tested were 0, 75, 150, 300, 450 and 600 kg ha-1 P2O5. Two P sources, simple superphosphate and magnesium thermal phosphate, were evaluated and compared in the study. A physicochemical analysis of the soil and an analysis of leaf... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffee nutrition; Coffea arabica; Phosphorus fertilization. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542015000200110 |
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| Dias,Kaio Gonçalves de Lima; Guimarães,Paulo Tácito Gontijo; do Carmo,Davi Lopes; Reis,Thiago Henrique Pereira; Lacerda,Julian Junio de Jesus. |
| Abstract: The objective of this work was to evaluate alternative sources of potassium for improving soil fertility and coffee productivity and beverage quality. The experiment was conducted in a coffee (Coffea arabica) crop, planted in an Oxisol area, in the municipality of Patrocínio, in the state of Minas Gerais, Brazil. The treatments consisted of the K sources TK47 and Super Greensand (SG) - both based on glauconite silicate mineral -, at the following doses: 0 kg ha-1 K2O (control); 42, 84, 168, and 336 kg ha-1 K2O from TK47; 618 kg ha-1 K2O from KCl; and 168 kg ha-1 K2O from SG. A randomized complete block design was used, with four replicates in each treatment. The experimental units consisted of three rows with ten plants each, using the eight... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Coffea arabica; Alternative fertilizers; Coffee mineral nutrition; Glauconite; Potassium gradual solubilization; Residual effect. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2018001201355 |
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