Superabsorbent nanocomposite based on maize bran with integration of water-retaining and slow-release NPK fertilizer

2017 ◽  
Vol 37 (6) ◽  
pp. 1682-1694 ◽  
Author(s):  
Ali Olad ◽  
Hamed Gharekhani ◽  
Abdolreza Mirmohseni ◽  
Ahmad Bybordi
Keyword(s):  
Slow Release ◽  
Maize Bran ◽  
Npk Fertilizer

Slow Release NPK Fertilizer Preparation from Natural Resources

2019 ◽  
Vol 948 ◽  
pp. 43-48 ◽  
Author(s):  
Windia Hanifah ◽  
Chandra Wahyu Purnomo ◽  
Suryo Purwono
Keyword(s):  
Slow Release ◽  
Nutrient Content ◽  
Release Profile ◽  
Chicken Manure ◽  
Equal Weight ◽  
Nutrient Sources ◽  
Slow Release Fertilizer ◽  
N Source ◽  
Npk Fertilizer ◽  
Release Method

Preparation of Natural multi-nutrient Slow Release Fertilizer (NSRF) aims to reduce the environmental burden from some waste and increase the efficiency of fertilizer in releasing nutrient content. In this study,slow-release fertilizer was prepared from all natural components from waste which aredried chicken manure (N source), struvite (P source), and palm empty fruit bunch ash (K source). The equal weight of the three main nutrient sources was used with the addition of starch powder as the binder by 10%, 15% and 20% of the total nutrient mixture. The mixture of all nutrient with binder was granulated using pan granulator. Dried NSRF granule was tested using sand bed release method to observe the release profile of the contained nutrient. Based on the results of a 30-day leaching study, it was found that increasing concentration of binder will reduce the release of the nutrient from NSRF granules.

scholarly journals The comparison of organic and inorganic fertilizers influence on selected indicators of turf growth-production process

2016 ◽  
Vol 107 (2) ◽  
pp. 373
Author(s):  
Peter Hric ◽  
Ján JANČOVIČ ◽  
Ľuboš VOZÁR
Keyword(s):  
Production Process ◽  
Slow Release ◽  
Average Daily Gain ◽  
Average Height ◽  
Annual Average ◽  
Inorganic Fertilizers ◽  
Growth Production ◽  
Npk Fertilizer ◽  
Daily Gain ◽  
Organic And Inorganic Fertilizers

<p>The aim of this experiment was to compare the influence of organic and inorganic fertilizers on selected indicators of turf growth-production process under non–irrigated conditions. The experiment was carried out in warm and dry conditions in the area of Nitra (Slovak Republic). In the experiment were included 5 treatments: 1.Without fertilization, 2. Turf NPK fertilizer 15–3–8 (+3 MgO +0.8 Fe +18 S), 3. Slow release NPK fertilizer 14–5–14 (+4 CaO +4 MgO +7 S), 4. Organic NPK fertilizer 5-1-1 and 5. Organic NPK fertilizer 3-2-1. Determination of the average height of turf, total height of turf and the annual average daily gain of height showed that best treatment was application of slow release fertilizer. Turf fertilized by Organic NPK fertilizer 5-1-1 reached the highest values of the average height of turf, total height of turf and the annual average daily gain of height, the same as treatment without fertilization. These finding were statistically significant. Treatment without fertilization reached the lowest values in evaluated growth-production parameters.</p>

scholarly journals NPK Fertilizer With Slow Release Fly Ash

2018 ◽  
Vol 7 (1) ◽  
pp. 1-11
Author(s):  
Nadhira Izzatur Silmi ◽  
◽  
Fidela Azaria Antasari ◽  
Della Afriyana ◽  
Ridha Dini Rahmawati ◽  
...  
Keyword(s):  
Fly Ash ◽  
Slow Release ◽  
Npk Fertilizer

Slow-release NPK fertilizer encapsulated by carboxymethyl cellulose-based nanocomposite with the function of water retention in soil

2018 ◽  
Vol 90 ◽  
pp. 333-340 ◽  
Author(s):  
Ali Olad ◽  
Hamid Zebhi ◽  
Dariush Salari ◽  
Abdolreza Mirmohseni ◽  
Adel Reyhani Tabar
Keyword(s):  
Carboxymethyl Cellulose ◽  
Water Retention ◽  
Slow Release ◽  
Npk Fertilizer

Water retention and slow release studies of a salep-based hydrogel nanocomposite reinforced with montmorillonite clay

2018 ◽  
Vol 42 (4) ◽  
pp. 2758-2766 ◽  
Author(s):  
Ali Olad ◽  
Hamid Zebhi ◽  
Dariush Salari ◽  
Abdolreza Mirmohseni ◽  
Adel Reyhani Tabar
Keyword(s):  
Water Retention ◽  
High Efficiency ◽  
Slow Release ◽  
Montmorillonite Clay ◽  
Release Studies ◽  
Npk Fertilizer ◽  
Hydrogel Nanocomposite

The synthesized nanocomposites slowly release fertilizer which can act as a high-efficiency NPK fertilizer formulation.

Iron/NPK agrochemical formulation from superabsorbent nanocomposite based on maize bran and montmorillonite with functions of water uptake and slow-release fertilizer

2018 ◽  
Vol 42 (16) ◽  
pp. 13899-13914 ◽  
Author(s):  
Hamed Gharekhani ◽  
Ali Olad ◽  
Farshad Hosseinzadeh
Keyword(s):  
Water Uptake ◽  
Slow Release ◽  
Growth And Yield ◽  
Nutritional Disorder ◽  
Slow Release Fertilizer ◽  
Maize Bran ◽  
Hydrogel Nanocomposite

Slow-release character of hydrogel nanocomposite makes it efficient in amending Fe nutritional disorder, fertilizer loss, and crops growth and yield.

scholarly journals Development of Carbon Based NPK Slow Release Fertilizer using Biochar from Oil Palm Empty Fruits Bunch

2020 ◽  
Vol 3 (1) ◽  
pp. 19-24
Author(s):  
Era Restu Finalis ◽  
Sumbogo Murti Sri Djangkung ◽  
Arfiana ◽  
Ilhamsyah Noor ◽  
Hadi Suratno ◽  
...  
Keyword(s):  
Oil Palm ◽  
Slow Release ◽  
Solid Material ◽  
Biomass Gasification ◽  
Thermochemical Conversion ◽  
Onion Plant ◽  
Npk Fertilizers ◽  
Empty Fruit Bunches ◽  
Slow Release Fertilizer ◽  
Npk Fertilizer

Biochar is a solid material produced by thermochemical conversion of biomass under oxygen-limited conditions. It has a wide surface and contains many pores so that it can be used as a material for making fertilizer. Biochar based slow release NPK fertilizer was formulated and developed to reduce nutrient leaching and greenhouse gas emissions. In this research, biochar which was a by-product of biomass gasification using oil palm empty fruit bunches was processed to make slow release biochar NPK fertilizer. Sources of nitrogen (N) were derived from urea, phosphate (P) from diamonium phosphate (DAP) and potassium (K) derived from potassium chloride (KCl). Zeolite was added as a matrix to improve fertilizer characteristics. All materials were formulated to make slow release biochar NPK fertilizer used for red onion (Allium sepa) plant applications. Several micronutrients were also added including Mg (MgSO4 fertilizer) and S (ZA fertilizer) to support plant growth. The characterization of fertilizer products was carried out by using SEM, BET etc. to determine physical properties including surface area, pore volume, morphology and composition. Furthermore, biochar NPK fertilizer was applied to the red onion plant which was a high-value crop in Indonesia. The application of NPK biochar fertilizer on red onion plant showed its superiority compared to commercial NPK fertilizers. In addition, the use of Magnesium and sulfur micronutrients could support the growth of red onion bulbs so that they produced more and bigger bulbs.Keywords: biomass, gasification, oil palm empty fruit bunches, biochar, slow release fertilizer*The paper has been selected from a collaboration with IPST and 7th ICFCHT 2019 for a conference entitled "Innovation in Polymer Science and Technology (IPST) 2019 in Conjunction with 7th International Conference on Fuel Cell and Hydrogen Technology (ICFCHT 2019) on October 16th - 19th at The Stones Hotel Legian, Bali, Indonesia"

Chitosan-kaolinite clay composite as durable coating material for slow release NPK fertilizer

2022 ◽  
Vol 195 ◽  
pp. 424-432
Author(s):  
E.M. Eddarai ◽  
M. El Mouzahim ◽  
R. Boussen ◽  
A. Bellaouchou ◽  
A. Guenbour ◽  
...  
Keyword(s):  
Slow Release ◽  
Coating Material ◽  
Kaolinite Clay ◽  
Npk Fertilizer

scholarly journals Nutrient Release Performance of Starch Coated NPK Fertilizers and Their Effects on Corn Growth

2018 ◽  
Vol 15 (2) ◽  
pp. 104 ◽  
Author(s):  
Nur Izza Faiqotul Himmah ◽  
Gunawan Djajakirana ◽  
Darmawan Darmawan
Keyword(s):  
Release Rate ◽  
Slow Release ◽  
Slow Growth ◽  
Nutrient Release ◽  
Environmental Issues ◽  
Coating Materials ◽  
Npk Fertilizers ◽  
Glutinous Rice ◽  
Npk Fertilizer ◽  
Coated Fertilizers

<p>One way to control or slow down the nutrient release rate from fertilizer is by coating technique.  Nowadays the use of biodegradable coating materials for slow-release fertilizer (SRF) is preferable because of environmental issues.  This research was aimed to make SRF using starches and cellulose as the coating materials and to test the release rate of the nutrients.  Five kinds of starches (cassava, corn, sago, wheat, and glutinous rice) and carboxymethyl cellulose (CMC) were used as coating material for granulated NPK fertilizer.  The coated fertilizers (NPK SRF) were tested for their leaching rate in the soil by percolation experiment.  The results showed that the kind of starch used influenced the release rate of the NPK SRFs. The NPK SRF coated with sago starch exhibited slow release rate and low leached nutrients which also resulted in slow growth of corn plant, as expected of SRF.  The use of starch and CMC as biodegradable coating materials in this research has a possibility to affect the microbial activity in the soil so that the nutrient release became faster than the uncoated NPK fertilizer.</p>

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