SciELO - Scientific Electronic Library Online

 
vol.34 número3Identificación genética de la variedad de olivo (Olea europaea L.) Sevillana y su relación con variedades productivas existentes en la provincia del HuascoHacia una integración de los rasgos ecofisiológicos de las plantas para la conservación de especies en peligro en ecosistemas sometidos a estrés hídrico índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados

Journal

Artigo

Indicadores

Links relacionados

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

Compartilhar


Idesia (Arica)

versão On-line ISSN 0718-3429

Resumo

ESTEBAN, Wladimir; PACHECO, Patricia; TAPIA, Luis  e  BASTIAS, Elizabeth. Remediation of salt and boron-affected soil by addition of organic matter: an investigation into improving tomato plant productivity. Idesia [online]. 2016, vol.34, n.3, pp.25-32. ISSN 0718-3429.  http://dx.doi.org/10.4067/S0718-34292016000300004.

To mitigate the effect of salt stress and excess B in soil and consequently increase crop yield and improve the behaviour of cv. "Poncho Negro" there are low-cost strategies such as the application of organic amendments. This study aimed at remediating excess salt (150 mM NaCl) and B (20 mg L-1 B) in soil using organic matter treatment (4% and 6%). Stress was supplied by irrigation. The rate of net CO2 assimilation, B, Na+, K+ and Ca2+ content, soluble sugars and proline were measured. All growth parameters measured were higher with 6% organic matter (MO) in soil than with 4% MO, including salinity treatments and excessive B, while Na+ and B concentrations were reduced in leaves and roots. The photosynthesis rate was maintained at the level of control plants with 6% OM applied in soil in treatments with salinity alone and with excess B. In the salinity alone treatment there was a marked increase in the content of compatible solutes, but with the application of 6% MO their content was reduced by more than 100%. The remediation of salt and boron-affected soil by addition of organic matter (6%) is an effective way to improve the behaviour of tomato.

Palavras-chave : organic matter; boric acid; salinity; Solanum lycopersicum L.

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

 

Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons