SciELO - Scientific Electronic Library Online

 
vol.32 número3The importance of pruning to the quality of wine grape fruits (Vitis vinifera L.) cultivated under high-altitude tropical conditionsSimulation of corn (Zea mays L.) production in different agricultural zones of Colombia using the AquaCrop model índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Artigo

Indicadores

Links relacionados

  • Em processo de indexaçãoCitado por Google
  • Não possue artigos similaresSimilares em SciELO
  • Em processo de indexaçãoSimilares em Google

Compartilhar


Agronomía Colombiana

versão impressa ISSN 0120-9965

Resumo

TORRES B., Jaime et al. Accumulation of dry matter and nitrogen contents in banana 'Williams' (Musa AAA) plants in Uraba, Colombia. Agron. colomb. [online]. 2014, vol.32, n.3, pp.349-357. ISSN 0120-9965.  http://dx.doi.org/10.15446/agron.colomb.v32n3.41797.

Banana production for export in the Uraba region of Colombia represents economic and social benefits for the country and demands improved agronomic management practices, especially for fertilization. The objective of this research was to evaluate the effect of different doses of nitrogen on crop development during two production cycles in order to adjust fertilizer recommendations to values consistent with plant requirements. Sixth-generation banana Williams plants were subjected to five treatments of nitrogen doses at five stages of development and during two production cycles. Two linear models, according to the phenological stage and vegetative structures, were used, assessing the variables of dry weight and nitrogen content. The statistical differences found for the effect of the nitrogen dose on the dry matter accumulation per plant organ and nitrogen content in the plants for the development stages per production cycle and between the cycles allowed for the selection of the 321.8 and 483 kg ha-1 ha of nitrogen doses as the better ones. In this research, the nitrogen dose of 483 kg ha-1 was the most successful at obtaining the highest nitrogen content in the plants. This research confirmed the practical utility of nutrient extraction curves because they allowed for the selection of the fertilizer dose with the best response.

Palavras-chave : fruits; plant physiology; growth; plant nutrition; modeling.

        · resumo em Espanhol     · texto em Inglês     · Inglês ( pdf )