نوع مقاله : مقاله کامل علمی پژوهشی
نویسندگان
1 استادیار گروه خاکشناسی دانشگاه شهید چمران اهواز
2 دانشگاه شهید چمران اهواز
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
Effect of hydrogel and urea on nitrogen uptake and
growth indices of Mentha
Abstract:
Background and Objectives: nutrient deficiency is one of the common problems in world's soils, especially calcareous soils. Hence, application of new methods including slow release fertilizer is increasing to improve the nutritional status of nutrient. Therefore, the present study was carried out to investigate the effects of hydrogel and nitrogen on soil chemical properties, yield, concentration and uptake of nitrogen in Mentha in a calcareous soil and under greenhouse culture.
nutrient deficiency is one of the common problems in world's soils, especially calcareous soils. Hence, application of new methods including slow release fertilizer is increasing to improve the nutritional status of nutrient. Therefore, the present study was carried out to investigate the effects of hydrogel and nitrogen on soil chemical properties, yield, concentration and uptake of nitrogen in Mentha in a calcareous soil and under greenhouse culture.nutrient deficiency is one of the common problems in world's soils, especially calcareous soils. Hence, application of new methods including slow release fertilizer is increasing to improve the nutritional status of nutrient. Therefore, the present study was carried out to investigate the effects of hydrogel and nitrogen on soil chemical properties, yield, concentration and uptake of nitrogen in Mentha in a calcareous soil and under greenhouse culture.
Materials and Methods: This research was conducted in a complete randomized design with three replicationsthe treatments were included hydrogel in levels of 0, 0.005 and 0.01 % of soil and urea fertilizer in level of 100, 200 and 300 kg.ha-1. During the experiment, chlorophylln a and b were measured. At the end of the experiment, soil chemical properties such as pH, dissolved organic carbon (DOC), soil nitrogen, and yield and qualitative characteristics of Mentha were measured.
Results: The results showed that the lowest pH, the maximum of DOC and soil nitrogen was obtained in level of 0.01% of hydrogel treatment. The maximum yield of Mentha was obtained in level of 0.01% of hydrogel treatment. Concentration and uptake of nitrogen increased significantly under the influence of hydrogel and nitrogen fertilizer.
Conclusions: The results of this study showed that the use of hydrogels and urea can play a useful and effective role in improving the uptake of nitrogen in Mentha. Based on these experimental results, it could be concluded that the increase in the amount of nitrogen in the Mentha plant was due to the increase in the amount of nitrogen in the soil and as a result, better uptake and impact on yield. Due to the environmental problems of chemical fertilizers, hydrogels can be used with chemical fertilizers.
Keywords: Hydrogel, Mentha, Urea, Yield.
کلیدواژهها [English]
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