The effect of modified biochar and hydrochar on reducing nitrate leaching in loam soil under unsaturated conditions
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Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:
Using cheap adsorbents, such as hydrochar and biochar, is important for protecting the environment (preventing water pollution by nitrates). For this purpose, this research was carried out in 2018 at research farm Faculty of Water Sciencs Engineering, Shahid Chamran University of Ahvaz. The treatments of this research were hydrochloric and biochemical modified in three levels of 0 (control), 2 and 5 g / kg soil in 4 replicates. After preparing hydrochar, biochar and bagasse sugarcane and mixing these materials with loamy soil and pouring them into test tubes, urea fertilizer was applied from 15 irrigation, in irrigation 1, 6 and 12 to soil columns. This experiment was conducted in a randomized complete block design with two independent experiments. At the end of each irrigation, nitrate output was measured. The results showed that the effect of 5 grams of irrigation treatments on all irrigation and 5 grams of water treatment, except irrigation 4 and 6 at 5% level, was significant on nitrate leaching. 2 g of biochar treatment showed better performance than 2 g of Hydrochar in all experiments. Treatment of 2 and 5 g / kg of soil in 30 and 43% respectively, and treatment of 2 and 5 g of hydrochar per kg of soil, , were 20 and 31%, respectively, was effective in preventing nitrate leaching.
Language:
Persian
Published:
Iranian Journal of Irrigation & Drainage, Volume:13 Issue: 3, 2019
Pages:
761 to 772
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