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Waste Mica as Alternative Source of Plant-Available Potassium: Evaluation of Agronomic Potential Through Chemical and Biological Methods
نویسنده:
سال انتشار: p2019
تعداد صفحات: 13
زبان فایل: انگلیسی
فرمت فایل: pdf
حجم فایل: 1.5MB
رمز فایل: www.ketabdownload.com
قیمت: 100,000ريال

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DOI: 10.1007/s11053-018-9430-3

Abstract: The potassium supplying capacity of the waste mica powder (WMP) was evaluated through chemical and biological means. Four different size fractions of the WMP were studied in laboratory by different chemical extractants. At the same time, experiment of the plant growth was conducted in pot using K-deficient soil. The K release from the WMP by different extractants followed an increasing trend with an increase in the fineness of the particles. The highest K release was recorded by boiling 1 M HNO3 (376.4–1726.4 mg kg−1) followed by 1 M ammonium acetate (33.5–226.5 mg kg−1), 0.01 M citric acid (31.6–158.3 mg kg−1) and water (12.0–112.0 mg kg−1) irrespective of the various size fractions. Significantly, higher cumulative K release from the WMP in successive extraction was recorded with 1 M boiling HNO3 that predicts its slow-release property. The K release by different extractants was correlated significantly and positively with the biomass yield and K uptake by plants. 1 M boiling HNO3 extractable K showed higher correlation values with the biomass yield and K uptake. Therefore, it suggests that the extractant might be a better indicator of K supplying capacity of the WMP. The plant intervention was able to extract 32.8% of total K from the WMP simultaneously improving the exchangeable and non-exchangeable K pool in soil. These above-mentioned results conclude that plants can get access to a significant amount of K from the WMP and it could be an effective source of K in highly weathered tropical soils under K deficiency

Keywords: Waste mica powder - K release - Pot culture study - Highly weathered soil - K recovery


Waste Mica as Alternative Source of Plant, Available Potassium, Evaluation of Agronomic Potential Through Chemical and Biological Methods, دانلود مقاله میکا زباله به عنوان منبع جایگزین پتاسیم در دسترس گیاه, ارزیابی پتانسیل زراعی با استفاده از روش های شیمیایی و بیولوژیکی
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