scholarly journals Urea Intercalated Biochar–a Slow Release Fertilizer Production and Characterisation

2013 ◽  
Vol 6 (12) ◽  
pp. 1-6 ◽  
Author(s):  
A. Manikandan
2020 ◽  
Author(s):  
Felix Arie Setiawan ◽  
Nur Indah Fajar Mukti ◽  
Atiqa Rahwamati ◽  
Ditta Kharisma Yolanda Putri ◽  
Boy Arief Fachri

2017 ◽  
Vol 11 (1) ◽  
pp. 50-62 ◽  
Author(s):  
Rajendran Mala ◽  
Ruby Selvaraj ◽  
Vidhya Sundaram ◽  
Raja Rajan ◽  
Uma Gurusamy

1997 ◽  
Vol 61 (1) ◽  
pp. 43-46 ◽  
Author(s):  
F. Ramírez ◽  
V. González ◽  
M. Crespo ◽  
D. Meier ◽  
O. Faix ◽  
...  

Cellulose ◽  
2021 ◽  
Author(s):  
Iris Amanda A. Silva ◽  
Osmir Fabiano L. de Macedo ◽  
Graziele C. Cunha ◽  
Rhayza Victoria Matos Oliveira ◽  
Luciane P. C. Romão

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


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

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