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Dey, Ahana, Chandra Srivastava, Prakash, Pratap Pachauri, Satya, Kumar Shukla, Arvind. (1398). Time‑dependent release of some plant nutrients from different organic amendments in a laboratory study. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 8(Supplement), 173-188. doi: 10.1007/s40093-019-0287-1
Ahana Dey; Prakash Chandra Srivastava; Satya Pratap Pachauri; Arvind Kumar Shukla. "Time‑dependent release of some plant nutrients from different organic amendments in a laboratory study". نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 8, Supplement, 1398, 173-188. doi: 10.1007/s40093-019-0287-1
Dey, Ahana, Chandra Srivastava, Prakash, Pratap Pachauri, Satya, Kumar Shukla, Arvind. (1398). 'Time‑dependent release of some plant nutrients from different organic amendments in a laboratory study', نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 8(Supplement), pp. 173-188. doi: 10.1007/s40093-019-0287-1
Dey, Ahana, Chandra Srivastava, Prakash, Pratap Pachauri, Satya, Kumar Shukla, Arvind. Time‑dependent release of some plant nutrients from different organic amendments in a laboratory study. نشریه علمی پژوهشی دانشگاه آزاد اسلامی, 1398; 8(Supplement): 173-188. doi: 10.1007/s40093-019-0287-1

Time‑dependent release of some plant nutrients from different organic amendments in a laboratory study

International Journal of Recycling Organic Waste in Agriculture
مقاله 19، دوره 8، Supplement، اسفند 2019، صفحه 173-188    اصل مقاله (859.39 K)
شناسه دیجیتال (DOI): 10.1007/s40093-019-0287-1
نویسندگان
Ahana Dey1؛ Prakash Chandra Srivastava1؛ Satya Pratap Pachauri1؛ Arvind Kumar Shukla2
1Department of Soil Science, College of Agriculture, Govind Ballabh Pant University of Agriculture and Technology, Pantnagar, India
2Indian Institute of Soil Science, Bhopal, India
چکیده
Purpose Soil fertility management requires a precise assessment of nutrient release from organic amendments to decide the rates and frequency of application.
Method Time-dependent release of some macro- and micro-nutrients from farmyard manure, mushroom compost, poultry manure, vermi-compost, biogas slurry and biochar of Lantana sp. was studied during 120 days incubation through entrapment of released nutrients on ion exchange resins.
Results Highest total concentration of K, Ca, Mg and S was in farmyard manure, Fe and Mn in mushroom compost, P, Zn and Cu in biogas slurry and B in biochar. Farmyard manure had the highest C:N ratio (34.2), while other organic amendment had C:N ratio < 20. The highest release of P, Ca, Mg, Zn and Cu was recorded from biogas slurry, of K and S from farmyard manure, of B from poultry manure and of Fe and Mn from mushroom compost. Mean percentage of total nutrient released was 30.5% P, 71.8% K, 23.1% Ca, 24.4% Mg, 29.3% S, 47.2% Zn, 22.9% Cu, 38.6% Fe, 46.6% Mn, and 70.9% B. Nutrient release from different organic amendments conformed to zero-order kinetics. The percent of total released nutrient, release kinetic constants and half-life of nutrients was related to the properties of organic amendments.
Conclusion Based on the released amount of nutrients from different organic amendments, the best source seemed to be farmyard manure for S and K, mushroom compost for Fe and Mn, biogas slurry for P, Ca, Mg, Zn and Cu and poultry manure for B.
 
کلیدواژه‌ها
Organic soil amendments؛ Nutrient release؛ Ion exchange resins؛ Zero- order kinetics
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