scholarly journals Slow release fertilizer production from coffee spent ground: A preliminary study

2020 ◽  
Author(s):  
Felix Arie Setiawan ◽  
Nur Indah Fajar Mukti ◽  
Atiqa Rahwamati ◽  
Ditta Kharisma Yolanda Putri ◽  
Boy Arief Fachri
Keyword(s):  
Slow Release ◽  
Fertilizer Production ◽  
Slow Release Fertilizer ◽  
Preliminary Study

Starch Biodegradation in a Lignin Modified Slow Release Fertilizer: Effect of Thickness

2014 ◽  
Vol 625 ◽  
pp. 830-833 ◽  
Author(s):  
Zahid Majeed ◽  
Nur Kamila Ramli ◽  
Nurlidia Mansor ◽  
Zakaria Man
Keyword(s):  
Half Life ◽  
Decay Constant ◽  
Slow Release ◽  
Nutrient Release ◽  
Biodegradable Materials ◽  
Flooded Soil ◽  
Slow Release Fertilizer ◽  
Preliminary Study ◽  
Natural Decay ◽  
Fertilizer Effect

Biopolymers and their modified blends are naturally biodegradable materials being intensively used in control nutrient release formulations. Material biodegradability varies with thickness which further effect natural decay when applied in soil. Preliminary study was conducted for a urea-nitrogen incorporated slow release fertilizer (SRF) prepared with 0.27mm, 0.54mm and 1.03mm thickness. The starch biodegradation was decreased with increased in thickness both in non-sterile flooded soil (NSF) and sterile flooded soil (SF). NSF soil data was corrected with SF soil (as control) showed improved exponential decay constant and half-life estimates compared to NSF soil only. Study concludes that SRF thickness is important parameter increases half-life and reduces starch biodegradability in SRF.

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
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