Effects of Sewage Sludge Application on Rice Growth, Soil Properties, and N Fate in Low Fertile Paddy Soil

Sewage Sludge Application in Soil Improved Leafy Vegetable Growth

A greenhouse experiment was conducted to investigate the effect of sludge application on growth rate of three leafy vegetable spinach, celery and lettuce. Treatment design in control and 0.7 mg/kg dry weight of soil. Results showed that sludge was highly effective in celery growth compare to spinach and lettuce and increased dry and fresh weight of celery significantly. Photosynthesis rate impr...

effects of sewage sludge application and leaching on soil chemical properties, yield and quality of barley

sewage sludge can be utilized as one of the best and cheapest organic fertilizer in agriculture due to its organic and plant nutrient contents. however, the presence of potentially toxic heavy metals in some sludges can restrict its use in agricultural lands. a greenhouse study was conducted in the college of agriculture, ferdowsi university of mashhad, to investigate the effects of leaching an...

Effects of sewage sludge and its biochar on soybean yield in fine-textured loess soil

Background: The application of biochar as a soil amendment has achieved popularity and has been found to improve considerably soil nutrient status and plant productivity in low fertile soils. Methods: This study used two different methods to apply sewage sludge and sewage sludge biochar with three replicates in a completely randomized block design. The experiment included (1) control, (2) mulc...

Alum Sludge as a Soil Amendment: Effects on Soil Properties and Plant Growth

Land application of sewage sludge: A soil columns study

A column study was conducted to assess the potential Cr, Ni, Cu, Zn, Cd and Pb movement through a reconstructed soil profile to which surface composted sewage sludge was applied. Sewage sludge was mixed into the top 100 mm of each column at the rates of 357 (H), 223 (M) and 22 Mg·ha-1 (L). Treatment H was calculated according to the critical soil concentration and treatments M and L were calcul...