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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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| Ferreira-Melo,Valdinar; Keiko-Welter,Marina; Alves-Chagas,Edvan; Pereira-Uchôa,Sandra Cátia; da Silva-Siqueira,Raphael Henrique. |
| Abstract Ground basalt rock may represent a labile reservoir of nutrients, providing a low-cost, nutrient-rich substrate for seedling formation and plant growth. The study aimed to evaluate the development of a native plant murici [Byrsonima crassifolia (L.) H.B.K.] seedlings using two different application rates of ground basalt rock with two particles sizes. The experiment was performed in a greenhouse, in which treatments were arranged in a random block design with five replications in a factorial scheme (2 x 5 + 1), with five doses of finely ground basaltic rock (0.42; 1.04; 2.08; 4.17 and 8.33 g kg-1), two grain sizes (G1Ø < 0.05 and G2 Ø < 0.10 mm mesh), and a treatment with soil without rock powder addition (the control 0.0 g kg-1 of rock... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Alternative fertilizers; Native fruit; Byrsonima crassifolia rocks for crops. |
| Ano: 2021 |
URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0120-28122021000100007 |
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