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| Brito,Cleiton F. B.; Donato,Sérgio L. R.; Arantes,Alessandro de M.; Donato,Paulo E. R.; Silva,João A. da. |
| ABSTRACT The objective of this study was to determine the photochemical efficiency of ‘Gigante’ cactus pear cultivated under different spacings and bovine manure doses in the semi-arid region. The experiment was conducted in a randomized block design in a 4 x 3 x 7 factorial scheme, with three replicates. The first factor consisted of four doses of organic fertilization (0, 30, 60 and 90 Mg ha-1 year-1 of bovine manure), the second one, of three spacings (1.0 x 0.5, 2.0 x 0.25 and 3.0 x 1.0 x 0.25 m) and the third one of seven reading times (6, 8, 10, 12, 14, 16 and 18 h). Chlorophyll a fluorescence readings were taken in cactus pear cladodes in the dry and rainy seasons using a pulse-modulated fluorometer. Cladodes of ‘Gigante’ cactus pear cultivated... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Opuntia; Arrangement of plants; Chlorophyll fluorescence. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000500338 |
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| Silva,João A. da; Donato,Sérgio L. R.; Donato,Paulo E. R.; Souza,Evilasio dos S.; Padilha Júnior,Milton C.; Silva Junior,Ancilon A. e. |
| ABSTRACT The objective was to evaluate the effect of different spacings and mineral fertilizations on cactus pear growth and production in a randomized block design, with three replicates, in a 3 x 4 factorial scheme: three spacings, 1.00 x 0.50 m, 2.00 x 0.25 m and 3.00 x 1.00 x 0.25 m, and four fertilizations, 000-000-000, 000-150-000, 200-150-000 and 200-150-100 kg ha-1 of N, P2O5 and K2O, respectively. Plant growth was evaluated between 90 and 390 days and production and growth were evaluated at 620 days after planting. There were significant interactions between spacing and fertilization for plant height, number of cladodes and cladode area index from 90 to 390 days and for production of fresh and dry matter at 620 days after planting. Spacing... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Opuntia; Plant arrangement; Fertilization; Yield. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000600564 |
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| Silva,João A. da; Donato,Sérgio L. R.; Donato,Paulo E. R.; Souza,Evilasio dos S.; Padilha Júnior,Milton C.; Silva Junior,Ancilon A. e. |
| ABSTRACT This work aimed to evaluate extraction/ export of nutrients and dry matter production in the 'Gigante' cactus pear, grown in different spacings and fertilizations 620 days after planting. Twelve combination of treatments were used consisting of: three spacings - 1.00 x 0.50; 2.00 x 0.25; and 3.00 x 1.00 x 0.25 m, and four fertilizations - 000-000-000; 000-150-000; 200-150-000; and 200-150-100, kg ha-1, of N, P2O5 and K2O, in a 3 x 4 factorial scheme in a randomized block design, with three replicates. Extraction/export of N, P, K, S, Ca, Mg, B, Fe, Mn, Zn, Na and Cu were determined and the means were 304.35; 18.81; 421.04; 62.35; 464.63; 215.77; 0.39; 0.81; 23.74; 1.11; 0.62 and 0.08 kg ha-1, besides the mean dry matter production of 17.11 Mg... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Opuntia; Nutrient uptake; Concentration; NPK fertilization. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016000300236 |
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| Donato,Paulo E. R.; Donato,Sérgio L. R.; Silva,João A.; Pires,Aureliano J. V.; Silva Junior,Ancilon A. e. |
| ABSTRACT This study aimed to evaluate the extraction/exportation of macronutrients by cladodes of ‘Gigante’ cactos pear, grown under diferente spacings and doses of cattle manure applied to the soil 600 days after planting. Twelve treatments were used, three spacing (1.00 x 0.50; 2.00 x 0.25 and 3.00 x 1.00 x 0.25 m) and four doses of cattle manure (0, 30, 60 and 90 Mg ha-1 year-1), arranged in a 3 x 4 factorial scheme in randomized blocks, with three replicates. The extraction/exportation of N, P, K, S, Ca and Mg was determined, whose respective values for maximum dry matter production (21.8 Mg ha-1), with a cattle manure dose of 71.8 Mg ha-1 year-1 were: 287.9, 46.2, 924.2, 40.7, 609.7 and 249.1 kg ha-1, 600 days after planting. The amounts... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Opuntia; Nutritional balance; Manure. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000400238 |
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| Lédo,Alex A.; Donato,Sergio L. R.; Aspiazu,Ignácio; Silva,João A. da; Donato,Paulo E. R.; Carvalho,Abner J. de. |
| ABSTRACT The objective of this study was to evaluate nutrient concentration and nutritional efficiency in ‘Gigante’ cactus pear under different chemical, organic and organomineral fertilizations, planting configurations and spacings, during three production cycles. Seventy two treatments, involving two types of configuration in the plots, three spacings in the subplots and 12 types of fertilization in the sub-subplots were arranged in a split-split-plot scheme, in a randomized block design, with three repetitions. At the time of harvest of each production cycle, 40 cladode tissue samples were collected per treatment to determine dry matter mass and nutrient concentration, which were used to calculate the coefficients of biological utilization of nutrients.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Opuntia sp.; Biological utilization coefficient; Yield. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000300154 |
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| Lédo,Alex A.; Donato,Sérgio L. R.; Aspiazú,Ignacio; Silva,João A. da; Donato,Paulo E. R.; Carvalho,Abner J. de. |
| ABSTRACT Cactus pear is adapted to semi-arid conditions. In this study, the objective was to evaluate the water use efficiency and green and dry mass yields of the cultivar Gigante under different fertilization rates and sources in three production cycles, spacing and planting arrangement. Seventy two treatments, involving two types of arrangements in the plots, three spacings in the subplots and 12 types of fertilization in the sub-subplots were arranged in a split-split-plot scheme, using randomized block design with three repetions. Dry mass content decreases while water use efficiency and green mass and dry mass yields increase from the first to the third cycle. It is feasible to use planting arrangements in triple or quadrupling rows which allow... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Opuntia; Organomineral fertilization; Bovine manure. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662019000600413 |
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| Donato,Paulo E. R.; Donato,Sérgio L. R.; Silva,João A.; Pires,Aureliano J. V.; Rosa,Raul C. C.; Aquino,Aureluci A.. |
| ABSTRACT The objective of this study was to evaluate the levels of macronutrients in cladodes and yield of cactus pear, cv. ‘Gigante’, cultivated with different cattle manure doses and plant spacings. The experimental design was randomized blocks in 4 x 3 factorial, with three replicates. The treatments consisted of the combination of four doses of cattle manure (0, 30, 60 and 90 Mg ha-1 year-1) with three spacings (1.00 x 0.50, 2.00 x 0.25 and 3.00 x 1.00 x 0.25 m). The contents of macronutrients and dry matter production of cladodes were assessed 600 days after planting. The plant spacings influenced the contents of nitrogen, potassium, calcium and sulfur in the cladodes of ‘Gigante’ cactus pear and there was interaction between spacing and manure dose... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Opuntia; Plant arrangement; Natural fertilization; Nutrients. |
| Ano: 2016 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662016001201083 |
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