Relationship between Soil Salinity and Physico-chemical Properties of Paddy Field Soils of Jhilwanja Union, Cox’s Bazar, Bangladesh

Abstract

This study attempts to examine the relationship between soil salinity and physico-chemical properties of paddy field soils of Jhilwanja union in Cox's Bazar, Bangladesh. Data were analyzed by the help of Statistical Package for the Social Sciences (SPSS: version-18) and study area map was prepared by Arc GIS 9.3 software. Present investigation reveals that soil textural class ranged from sandy to loam, a mean bulk density 1.58 g/cm 3 , and high soil temperature (M = 31.55). Soils were moderately acidic to basic and soil salinity (EC) content comes under low to medium (minimum = 3.10 dS/m, maximum = 7. 24 dS/m) range. The organic matter level exhibited absolutely lower (M = 0.75) than good agricultural soil. Soils of the area represents low in total N (M = 0.08), very low in total P content (M = 0.06), exchangeable Ca (M = 0.0009) were too low and lower content of exchangeable Mg (M = 0.26), but high level of exchangeable K (M = 0.57) content. Simple regression analysis showed that there was a significant effect of soil salinity on soil pH, soil temperature, OM, total N, total P, exchangeable K and Mg. Repairing coastal embankment (rubber dam), cultivating native high yielding variety, using organic fertilizer, implementing Integrated Soil Nutrient Management (ISNM) and adapting Integrated Coastal Zone Management (ICZM) can increase crop production and soil fertility level in study area.

Soil mapping and delineation of management zones in the Western Ghats of coastal India

“…The acidic reaction of soil is attributed to acidic parent material, climate, topography, and precipitation. Similar results have been reported in south‐east Asian forests and coastal plains of Bangladesh (Aizat, Mohamad‐Roslan, Suleman, & Karam, ; Hossain, Muhibbullah, Ali, & Molla, ).…”

Evolución a Corto Plazo De Las Propiedades Químicas en Dos Suelos De La Zona Centro Sur De Chile Fertilizados Con Diferentes Fuentes De Calcio

“…dades analizadas (Tabla 1), y en el caso de la CE, debido al menor contenido de arcillas (Havlin et al 1999) y en menor medida al valor inicial del suelo (Tabla 1). La CE está asociada a la fracción soluble en agua, la cual no fue medida en este experimento, y al contenido de partículas finas (Hossain et al, 2015). Por su parte, un suelo con mayor nivel de disponibilidad de nutrientes des-de el inicio, respecto de otro suelo con el cual se compare, mantiene está característica en periodos cortos de evaluación como el empleado en las incubaciones de este experimento (Laos et al, 2000;Hirzel et al, 2010).…”

“…Esta mayor variación de concentración de Ca como promedio del tiempo de incubación en el suelo franco (123,2 mg kg -1 respecto de 98,8 mg kg -1 en el suelo arcilloso, Tablas 5 y 6 y Fig. 1c y 2c) puede ser explicada por el menor contenido de arcillas de este suelo (Hossain et al, 2015), lo cual genera menor poder tampón y mayor probabilidad de cambios en la concentración de bases disponibles (Havlin et al, 1999;Fageria y Nascente, 2014). Las variables pH y CE fueron muy estables en el periodo de evaluación en ambos suelos (Tabla 4 y Figs.…”

Variation in Salinity through the Soil Profile in South Coastal Region of Bangladesh

“…A number of environmental issues and problems are hindering the development of coastal livelihood of Bangladesh. Salinity is one of the most important issue of them, which is expected to aggravate by climate change and sea level rise and eventually affect crop production (Hossain et al, 2015). The southern region of Bangladesh is recognized as an agro ecologically disadvantaged region.…”