文章基本信息

标题：WASHED BIOCHAR ENHANCES SOIL QUALITY, CARBON FRACTIONS AND THE PERFORMANCE OF AMMONIUM AND NITRATES IN SOIL
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作者：Punhoon Khan Korai ; Tanveer Ali Sial ; Qaiser Hussain 等
期刊名称：Fresenius Environmental Bulletin
印刷版ISSN：1018-4619
出版年度：2018
卷号：27
期号：12
页码：8205-8212
语种：English
出版社：PSP Publishing
摘要：Biochar can play an important role in improving the soil health and crop yield by sequestering the soil carbon and improving the soil structure, soil fertility. An incubation trial was conducted with the hypothesis that application of maize and wheat biochar washed with hot water may affect the performance of macronutrient availability (P, K, NH4+-N, NO3-- N) and carbon fractions [soil organic carbon (SOC), microbial biomass carbon MBC] in the soil. Results indicated that washed and unwashed biochars application improved the available macronutrients (P, K), soil pH, SOC, MBC and soil cation exchange capacity (CEC) significantly compared to the control. However, washed maize- and wheat-biochars significantly reduced the ammonium and nitrate contents in the soil. The activity of urease enzyme was noticed obviously improved compared to control of the washed and unwashed biochar treatments. And no changes in the activity of invertase enzyme were found across washed and unwashed biochar treatments as compared to control. Overall, wheat and maize derived biochars with and without washing were effective in improving the macronutrients and organic carbon status of the soil.
关键词：Unwashed biochar;washed biochar;macronutrients;ammonium;nitrate;carbon fractions;soil quality