Abstract
A pot experiment was conducted to investigate the effect of cow dung, rice husks, calcium chloride and gypsum on soil reclamation and compare the effect of organic and inorganic amendments on soil reclamation during the period of 5th March to 20th April, 2017. The experiment was laid to fit a completely randomized design (CRD) with seven treatments [Reference soil (T0), Cow dung (T1), Rice husk (T2), Gypsum (T3), Calcium chloride (T4), Cow dung + Rice husk (T5) and Gypsum + Calcium chloride (T6)] each having three replications for this experiment. After incubation (45 days), the laboratory investigation was carried out in the Soil, Water and Environment Discipline, Khulna University, Khulna, Bangladesh. Results indicate that the individual or combined effect of gypsum (T3) was more effective in changing EC and SAR. Gypsum application in combination with calcium chloride (T6) improved the soil chemical properties by reducing the EC. Among the treatment, calcium chloride (T4) had a remarkable effect in reducing sodium adsorption ratio and gypsum had a remarkable effect in reducing pH. Cow dung (T1), rice husk (T2), combination of cow dung and rice husk (T5) were less effective to reduce EC, pH and SAR. It’s measured for soils of different soil amendments varied significantly (P
Highlights
A pot experiment was conducted to investigate the effect of cow dung, rice husks, calcium chloride and gypsum on soil reclamation and compare the effect of organic and inorganic amendments on soil reclamation during the period of 5th March to 20th April, 2017
This experiment was to investigate the effect of cow dung, rice husks, calcium chloride and gypsum on soil reclamation and compare the effect of organic and inorganic amendments on soil reclamation
Effect of different soil amendments on electrical conductivity (EC) in soil The electrical conductivity measured for soils of different soil amendments varied significantly (P < 0.05) and with the reference soil and the Electrical Conductivity (EC) measured for the soils varied from 5.14 to 8.30 dS∙m−1 as presented in Appendix I and Figure 1
Summary
The total area of Bangladesh is 147,570 km. Over 30% of the net cultivable area in Bangladesh is on the coast [1]. Out of the 2.85 million hectares (mha) of coastal and off-shore area (30% of net cultivable area), about 0.83 mha arable land were affected by varying degrees of soil salinity during 1966-1975 which has increased to 1.02 mha in 2000 [2]. The coastal soil salinity has undergone rapid changes in recent years. Such changes occur due to conversion and encroachment of agricultural land to shrimp farming. Transformation of rice fields into shrimp farms has changed the land use because the rain-water cannot wash out the salt water rather it stored in “Gher”. Salinity increases day by day and form salt crust in sub-surface
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
