Agronomic performance of carrot fertilized with roostertree [Calotropis procera (Ait.) R. BR.] in two growing seasons

Authors

  • Almir Rogério Evangelista de Souza Universidade Federal Rural do Semi-Árido
  • Gomes Flôr Souza Universidade Federal Rural do Semi-Árido
  • Manoel Galdino dos Santos Universidade Federal Rural do Semi-Árido
  • Euvaldo Pereira de Cerqueira Júnior Universidade Federal do Vale do São Francisco
  • Rafaela Félix França Universidade Federal Rural de Pernambuco
  • Aurélio Paes Barros Júnior Universidade Federal Rural do Semi-Árido
  • Lindomar Maria da Silveira Universidade Federal Rural do Semi-Árido
  • Francisco Bezerra Neto Universidade Federal Rural do Semi-Árido

DOI:

https://doi.org/10.14393/BJ-v33n6a2017-37556

Keywords:

Daucus carota L., Green manure, Organic cropping, Agronomic efficiency

Abstract

Because vegetables have a fast production cycle, they require fertilization in quantities and at ideal times to obtain maximum productivity, and green manure is an alternative practice to the use of mineral fertilizers. This study was conducted to evaluate the effects of different amounts of roostertree [Calotropis procera (Ait.) R. Br.] biomass and its incorporation times in two growing seasons, in the agronomic performance of carrots. The experiment was conducted on an experimental farm at the Universidade Federal Rural de Pernambuco (UFRPE) in the autumn-winter period (March-July 2012) and the spring-summer period (September-December 2012). The experimental design was a randomized block design with three replications. The treatments were arranged in a factorial 4 x 4 design; the first factor consists of four amounts of roostertree biomass (5.4, 8.8, 12.2 and 15.6 t ha-1 on a dry basis), and the second factor consists of four times of incorporation of this manure into the soil (0, 10, 20 and 30 days before sowing the carrots). The carrot cultivar used was Brasília. The following traits were evaluated: plant height, number of leaves per plant, root dry mass, total and commercial yield of roots. The best agronomic performance of carrot cultivar Brasília was found with the amount of roostertree biomass of 15.6 t ha-1, in the time of incorporation into the soil of 10 days before seeding. The cultivation in the autumn-winter showed higher total and commercial productivities of carrot roots fertilized with roostertree.

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Published

2017-11-09

How to Cite

SOUZA, A.R.E. de, SOUZA, .G.F., SANTOS, M.G. dos, CERQUEIRA JÚNIOR, E.P. de, FRANÇA, R.F., BARROS JÚNIOR, A.P., SILVEIRA, L.M. da and BEZERRA NETO, F., 2017. Agronomic performance of carrot fertilized with roostertree [Calotropis procera (Ait.) R. BR.] in two growing seasons . Bioscience Journal [online], vol. 33, no. 6, pp. 1401–1411. [Accessed29 November 2022]. DOI 10.14393/BJ-v33n6a2017-37556. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/37556.

Issue

Section

Agricultural Sciences