Water management as a cultural practice for rice direct seeding on wet paddy surface in saline soil

Three levels of water control and nitrogen application were treated in direct seeding on wet paddy surface using Gancheok rice variety under different levels of saline soil. Results showed that all the yield components decreased with higher salinity levels and longer intervals of irrigation. Salt co...

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Bibliographic Details
Published inPhilippine Journal of Crop Science (Philippines) Vol. 231; no. 3
Main Authors Lee, K.S. (Internationl Rice Research Inst., Manila (Philippines). Plant Breeding Germplasm Bank Div.) Ko, J.K, Nam, J.K, Kwon, T.O, Senadhira, D
Format Journal Article
LanguageEnglish
Published 01.12.1998
Subjects
ABONOS NITROGENADOS
APLICACION DE ABONOS
DIRECT SOWING
DOSE D'IRRIGATION
DOSIS DE RIEGO
ENGRAIS AZOTE
FERTILISATION
FERTILIZER APPLICATION
GESTION DES EAUX
IRRIGATION RATES
NITROGEN FERTILIZERS
ORDENACION DE AGUAS
ORYZA SATIVA
SALINE SOILS
SEMIS DIRECT
SIEMBRA DIRECTA
SOL SALIN
SUELO SALINO
VARIEDADES
VARIETE
VARIETIES
WATER MANAGEMENT
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Summary:Three levels of water control and nitrogen application were treated in direct seeding on wet paddy surface using Gancheok rice variety under different levels of saline soil. Results showed that all the yield components decreased with higher salinity levels and longer intervals of irrigation. Salt concentration of 0.2% has no yield reduction, but yield decreased with higher salinity level of 0.4% regardless of water management and amount of nitrogen applications. The data showed that rice cultivation could be possible, the condition when the irrigation was at four-day intervals with 180 kg per hectare of nitrogen under 0.4% salinity level indicating the reclaimed area where relatively high salt concentration can gain optimum yield by cultural practices such as water management with appropriate nitrogen application
Bibliography:F04
2001100444
F06
ISSN:0118-463X