نوع مقاله : پژوهشی
نویسندگان
1 دانشجوی کارشناسی ارشد دانشگاه تربیت مدرس
2 دانشیار دانشگاه تربیت مدرس
3 استادیار دانشگاه تربیت مدرس
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
Nitrogen is one of the most important factors affecting the efficiency and soil fertility and the development of cultivated plants, as the most yield-limiting nutrient element in crop production in most soils worldwide. In this study the effects of lignin addition on nitrification in loamy clay sandy soil was investigated in the greenhouse. Therefore soil treated with different rate of lignin ( 0, 50 and 200 mg per kg soil). Lignin used in this study was obtained from black liquor the Kraft process. The results of this study showed that addition of lignin to soil pronouncedly affects the amount of NH4 +, NO3-and total soil nitrogen (p< 0.05). Addition of lignin at rate of 200 mg lignin per kg of soil increasingly inhibited the nitrification as well total nitrogen of soil was ameliorated.
کلیدواژهها [English]
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