Surface response and organic and phosphate fertilizer for jatropha cultivation
Journal Title: Revista Verde de Agroecologia e Desenvolvimento Sustentável - Year 2018, Vol 13, Issue 3
Abstract
Jatropha curcas is a perennial plant and appreciable concentrations of oil in its seeds. The objective of this work is to evaluate the growth and development of jatropha plants in response to different fertilization recommendations regarding organic matter and phosphorus under irrigated conditions. Was conducted experiment potted conditions in a randomized block design with four replications and one plant per plot, to evaluate the growth and development of jatropha plants in response to different fertilizer recommendations as to organic matter and phosphorus in irrigated conditions. Treatments consisted of a factorial combination 4 x 4 factorial consisting of 4 recommendations of organic fertilizer: without fertilization (0 t ha-1 ), recommended dose (4 t ha-1 ), one and a half the recommended dose (6 t ha-1 ) and twice the recommended dose (8 t ha-1 ), and 4 phosphate fertilizer recommendations (absence of phosphate fertilizer (0 kg ha-1 ), recommended dose (90 kg ha-1 ), one and a half the recommended dose (135 kg ha-1 ) and twice the recommended dose (180 kg ha-1 ). We evaluated the growth at 60, 90, 120, 150, 180 and 210 days after transplanting for containers, by measuring the plant-1 height, stem diameter, number of leaves plant-1 , plant-1 leaf area and total number of branches plant-1 . The recommendation of organic and phosphate fertilizer suggested by soil analysis laboratory (4 t ha-1 of organic matter and 90 kg phosphorus ha-1 ) was insufficient for growing jatropha plants. The isolated use of organic matter in jatropha crop fertilization promotes positive effects on all growth variables.
Authors and Affiliations
Silvanete Severino da Silva, Roberto Vieira Pordeus, Rosiane de Lourdes Silva de Lima, Carlos Alberto Vieira de Azevedo, André Alisson Rodrigues da Silva, José Dantas Neto
Keywords
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- EP ID EP419026
- DOI 10.18378/rvads.v13i3.5360
- Views 132
- Downloads 0
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