Utilization of biochar impregnated with anaerobically digested slurry as slow-release fertilizer

2013 ◽  
Vol 177 (1) ◽  
pp. 97-103 ◽  
Author(s):  
Taek-Keun Oh ◽  
Yoshiyuki Shinogi ◽  
Seung-Joo Lee ◽  
Bongsu Choi
Keyword(s):  
Slow Release ◽  
Slow Release Fertilizer ◽  
Anaerobically Digested Slurry

Evaluation of Nano Structured Slow Release Fertilizer on the Soil Fertility, Yield and Nutritional Profile of Vigna radiata

2017 ◽  
Vol 11 (1) ◽  
pp. 50-62 ◽  
Author(s):  
Rajendran Mala ◽  
Ruby Selvaraj ◽  
Vidhya Sundaram ◽  
Raja Rajan ◽  
Uma Gurusamy
Keyword(s):  
Soil Fertility ◽  
Vigna Radiata ◽  
Slow Release ◽  
Nutritional Profile ◽  
Slow Release Fertilizer

Ammoxidized kraft lignin as a slow-release fertilizer tested on Sorghum vulgare

1997 ◽  
Vol 61 (1) ◽  
pp. 43-46 ◽  
Author(s):  
F. Ramírez ◽  
V. González ◽  
M. Crespo ◽  
D. Meier ◽  
O. Faix ◽  
...  
Keyword(s):  
Slow Release ◽  
Kraft Lignin ◽  
Sorghum Vulgare ◽  
Slow Release Fertilizer

scholarly journals Using water hyacinth (Eichhornia crassipes) biomass and humic substances to produce urea-based multi-coated slow release fertilizer

Cellulose ◽  
2021 ◽  
Author(s):  
Iris Amanda A. Silva ◽  
Osmir Fabiano L. de Macedo ◽  
Graziele C. Cunha ◽  
Rhayza Victoria Matos Oliveira ◽  
Luciane P. C. Romão
Keyword(s):  
Organic Matter ◽  
Humic Substances ◽  
Natural Organic Matter ◽  
Nitrogen Fertilization ◽  
Water Hyacinth ◽  
Eichhornia Crassipes ◽  
Slow Release ◽  
Leaching Tests ◽  
Slow Release Fertilizer ◽  
Atmosphere System

AbstractUrea-based multi-coated slow release fertilizer was produced using water hyacinth, humic substances, and chitosan, with water rich in natural organic matter as a solvent. Elemental analysis showed that the nitrogen content of the fertilizer (FERT) was around 20%. Swelling tests demonstrated the effectiveness of the water hyacinth crosslinker, which reduced the water permeability of the material. Leaching tests showed that FERT released a very low concentration of ammonium (0.82 mg L−1), compared to the amount released from urea (43.1 mg L−1). No nitrate leaching was observed for FERT, while urea leached 13.1 mg L−1 of nitrate. In water and soil, FERT showed maximum releases after 30 and 40 days, respectively, while urea reached maxima in just 2 and 5 days, respectively. The results demonstrated the promising ability of FERT to reduce nitrogen losses, as well as to minimize environmental impacts in the soil–plant-atmosphere system and to improve the efficiency of nitrogen fertilization. Graphic abstract

scholarly journals Potassium ferrite nanoparticles on DAP to formulate slow release fertilizer with auxiliary nutrients

2021 ◽  
Vol 215 ◽  
pp. 112148
Author(s):  
Ifra Saleem ◽  
Muhammad Aamer Maqsood ◽  
Muhammad Zia ur Rehman ◽  
Tariq Aziz ◽  
Ijaz Ahmad Bhatti ◽  
...  
Keyword(s):  
Slow Release ◽  
Ferrite Nanoparticles ◽  
Slow Release Fertilizer

Evaluation of Composted Sewage Sludge/Straw Mixture for Horticultural Utilization

1989 ◽  
Vol 21 (8-9) ◽  
pp. 889-897 ◽  
Author(s):  
J. M. Lopez-Real ◽  
E. Witter ◽  
F. N. Midmer ◽  
B. A. O. Hewett
Keyword(s):  
Collaborative Research ◽  
Slow Release ◽  
General Purpose ◽  
Exchange Capacity ◽  
Soluble Salts ◽  
Slow Release Fertilizer ◽  
Wide Range ◽  
Sludge Cake ◽  
Bulk Volume ◽  
Composted Sewage Sludge

Collaborative research between Southern Water and Wye College, University of London, has led to the development of a static aerated pile composting process for the treatment of dewatered activated sludge cake/straw mixtures. The process reduces bulk volume of the sludge producing an environmentally acceptable, stabilised, odour and pathogen-free product. Characteristics of the compost make it a suitable general purpose medium for container grown plants, providing the salt concentration is reduced by washing the compost prior to planting. Compared with peat the compost has a higher bulk density, a lower waterholding capacity, a lower cation exchange capacity, a high content of soluble salts, and a higher content of plant nutrients. A compost mixture was successfully developed in the growing trials containing equal quantities of compost, Sphagnum peat, and horticultural vermiculite. The compost has been used successfully to grow a wide range of plants. Plants grown in mixtures based on the compost were in general similar to those grown in peat-based growing media. The compost is a valuable soil conditioner and slow release fertilizer.

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