Log in

Relevant bibliographies by topics / Granular urea / Journal articles

To see the other types of publications on this topic, follow the link: Granular urea.

Journal articles on the topic 'Granular urea'

Author: Grafiati

Published: 4 June 2025

Last updated: 15 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Granular urea.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

S.O, Dania,, Edoghaye, M.I., and Michael G. C. "EVALUATION OF UREA, NPK AND ORGANOMINERAL FERTILIZERS ON THE GROWTH, NUTRIENT UPTAKE AND YIELD OF MAIZE IN NUTRIENT DEPLETED SOIL." Big Data In Agriculture 4, no. 2 (2022): 48–53. http://dx.doi.org/10.26480/bda.02.2022.48.53.

Full text

Abstract:

A two-year (2018 and 2019) experiment was carried out at two locations of the Ambrose Alli University Teaching and Research Farm, Ekpoma to evaluate the effect of organic base granular and prilled urea fertilizers on the growth, nutrient uptake and yield of maize. These experiments were fitted in a Randomized Complete Block Design (RCBD) with seven treatments (granular, prilled urea, P&K + 75% granular urea, P&K + 75% N prilled urea (NPK), P&K + 75% N granular urea + 25% N through farmyard manure (FYM), P&K + 75% N prilled urea + 25% N FYM and the control) replicated thrice. Th

APA, Harvard, Vancouver, ISO, and other styles

2

Hoeung, Pisey, Yazid Bindar, and Samuel Pati Senda. "Development of granular urea-zeolite slow release fertilizer using inclined pan granulator." Jurnal Teknik Kimia Indonesia 10, no. 2 (2018): 95. http://dx.doi.org/10.5614/jtki.2011.10.2.6.

Full text

Abstract:

Slow release fertilizers (SRFs) are so crucial in improvement of agriculture productions. To increase urea fertilizer effectiveness and efficiency, the product could be modified in the form of SRFs. The objective is to conduct slow release urea fertilizer. During granulation, particle sizes of urea and natural zeolite mixture (50, 60 and 80 mesh), binder solution with different percentage (2% to 10%) of starch, and clay additives (5%, 7.5%, and 10%) were used. The obtained granule was further analyzed using percolation reactor to determine the slow release rate. Leachate from reactors was coll

APA, Harvard, Vancouver, ISO, and other styles

3

Rahman, Md Towfiqur, Md Monjurul Alam, Md Mosharraf Hossain, and Muhammad Rashed Al Mamun. "Microcontroller based granular urea application attachment for rice transplanter." Journal of the Bangladesh Agricultural University 17, no. 3 (2019): 380–87. http://dx.doi.org/10.3329/jbau.v17i3.43219.

Full text

Abstract:

Transplanting and fertilizer application for rice production in Bangladesh are tedious, time consuming and laborious task, and mostly done manually. Mechanical transplanting of rice becoming popular in the country in recent years and few machines have been developed for granular urea deep placement, however, having some limitations. Placing granular urea precisely along with rice transplanting, an attempt was under taken to design and fabricate an electronic control granular urea applicator to be attach with a 4-row walk behind type rice transplanter. Fabrication of the electronic granular ure

APA, Harvard, Vancouver, ISO, and other styles

4

Edwards, Ronald E., Oscar E. Moore, and Charles A. Hodge. "Urea-nitric phosphate granular fertilizer." Industrial & Engineering Chemistry Research 28, no. 3 (1989): 329–34. http://dx.doi.org/10.1021/ie00087a012.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Hassan, Luqman Hakim, Ku Zilati Ku Shaari, and Zakaria Man. "Urea Hardness Optimization in a Fluidized Bed Coating Equipment Using Taguchi Design Method." Applied Mechanics and Materials 699 (November 2014): 111–17. http://dx.doi.org/10.4028/www.scientific.net/amm.699.111.

Full text

Abstract:

This paper describes the use of Taguchi Method in optimizing coating hardness in a tangential fluidized bed coater using modified biopolymer. During the coating process, granular ureas collide among themselves and the wall surface at high velocity. This led to excessive attrition and likely to break the granular ureas into smaller sizes. Hence, hardness is the critical properties during operations such as packaging and stacking. A series of coating experiments were carried out by using the L9 orthogonal array with 3 levels to determine the effect of inlet air temperature (40, 60 and 80OC), dis

APA, Harvard, Vancouver, ISO, and other styles

6

La Habi, Maimuna. "Pembuatan Kompos Granul Ela Sagu Diperkaya Pupuk Majemuk 15:15:15 dan Aplikasinya Pada Budidaya Tanaman Bawang Merah." JURNAL BUDIDAYA PERTANIAN 14, no. 1 (2018): 21–27. http://dx.doi.org/10.30598/jbdp.2018.14.1.21.

Full text

Abstract:

Effort to reduce the high dependence of farmers on urea fertilizers is adding sago pith waste granular compost as organic fertilizer. This research is conducted to develop granular-enriched compost and evaluate the effectiveness of granular-enriched compost on red onion cultivation. The application of granular-enriched compost was designed in a Randomized Block Design with three replicates. Treatments included 1) without fertilizers (KGES1); 2) the granular-enriched compost (8 t/ha) (KGES2); 3) recommended dosage of inorganic fertilizers such as Urea, SP-36, and KCl (KGES3); 4) inorganic ferti

APA, Harvard, Vancouver, ISO, and other styles

7

Alam, M., TR Sarker, and TA Orin. "Performance evaluation of a pull type two rows granular urea applicator." Journal of the Bangladesh Agricultural University 12, no. 1 (2014): 211–20. http://dx.doi.org/10.3329/jbau.v12i1.21414.

Full text

Abstract:

Deep placement of super granular urea is very laborious and time consuming work for manually operation. To overcome the human stress and drudgery to place the super granular urea, a low cost manually operated pull type 2- rows granular urea applicator (GUA) was designed and developed in the department of Farm Power and Machinery, Bangladesh Agricultural University, Mymensingh. The performance of machine was done in agronomy field of Bangladesh Agricultural University. The effective field capacity was 0.11 ha/hr at a forward speed of 1.78 km/hr and 78.89 % field efficiency of developed granular

APA, Harvard, Vancouver, ISO, and other styles

8

Quin, B. F., A. G. Gillingham, D. Baird, S. Spilsbury, and M. Gray. "A comparison under grazing of pasture production, pasture N content and soil mineral N levels between granular urea and ONEsystem® on two contrasting dairy farms in New Zealand." Journal of New Zealand Grasslands 77 (January 1, 2015): 259–68. http://dx.doi.org/10.33584/jnzg.2015.77.462.

Full text

Abstract:

Field trials under grazing on two contrasting dairy farms in mid-Canterbury (Site C) on a stony silt loam under irrigation, and in rain-fed central Waikato (Site W) on a volcanic ash-derived soil, compared standard granular urea (4-5 mm diameter granules) with ONEsystem®. This uses prilled urea (0.8-2.8 mm diameter prills), passed through a fine water spray (50 litres/ha) that contains the urease inhibitor nbpt (2 gm nbpt/kg N) during application. A nil N control and three rates of each fertiliser were applied to 12 × 25 m plots on four occasions after rotational grazing during spring/early su

APA, Harvard, Vancouver, ISO, and other styles

9

Singh, Bhanu, Dhruvendra Singh Sachan, Sushil Kumar Yadav, and Shabbeer Ahmad. "Effect of Sowing Methods and Different Levels of Nitrogen on Yield Attributes and Yield of Maize." Journal of Experimental Agriculture International 46, no. 9 (2024): 613–18. http://dx.doi.org/10.9734/jeai/2024/v46i92859.

Full text

Abstract:

The field experiment was carried out at Research Farm, Integral University, Lucknow, Uttar Pradesh, India during Kharif season, 2021. The experiment envisages to study the effect of Sowing methods and different Nitrogen levels on yield and attributes of maize crop. The experiment was laid down in the Split Plot Design and the treatments was replicated three times. Among the sowing methods, the maximum length of a cob (18.52 cm) was obtained in the ridge sowing method (S1) while among nitrogen levels the maximum length of cob (19.51 cm) was obtained with the application of 25% N through granula

APA, Harvard, Vancouver, ISO, and other styles

10

Schlossberg, Maxim J., Benjamin A. McGraw, and Kyle R. Hivner. "Comparing Closed Chamber Measures of Ammonia Volatilization from Kentucky Bluegrass Fertilized by Granular Urea1." Journal of Environmental Horticulture 36, no. 3 (2018): 85–91. http://dx.doi.org/10.24266/0738-2898-36.3.85.

Full text

Abstract:

Abstract Easy handling and low unit N cost make prilled urea (46-0-0) a popular fertilizer. While incomplete recovery of granular urea applications by turfgrass is documented, practical guidance for small-plot field assessment of ammonia (NH3) volatilization remains limited. Our objectives were to (i) develop a method for field-implementation of closed flux/dynamic chambers to measure ammonia emission over a 3-day period following granular urea application to turfgrass, and (ii) infer the significance of said measures to levels arising from simultaneous static-chamber measures. A Kentucky blue

APA, Harvard, Vancouver, ISO, and other styles

11

Ivanna, Demchuk. "IMPROVEMENT OF THE PROCESS OF IMPROVING THE QUALITY OF UREA GRANULES." TECHNOLOGY AUDIT AND PRODUCTION RESERVES 6, no. 3(56) (2020): 13–16. https://doi.org/10.15587/2706-5448.2020.218492.

Full text

Abstract:

<em>The object of research is the process of improving the quality of urea granules by processing. The subject of research is the physicochemical properties of granular urea after processing with a new composite. Granular urea has a wide range of uses, but during storage and sale it is capable of caking with a significant loss of its flowability, static and dynamic strength of granules. When transporting over long distances, these phenomena cause inconvenience in loading and unloading operations, and also affect the quality of the supplied goods. Therefore, the search for methods to improve it

APA, Harvard, Vancouver, ISO, and other styles

12

Waqas, Hafiz Muhammad, Muhammad Anwar-ul-Haq, Hina, et al. "Impact of Neem-Coated Urea on NO₃-N and NH₄-N Availability and Growth Performance of Maize in Saline and Non-Saline Soils." Journal of Agriculture and Veterinary Science 3, no. 3 (2024): 467–78. https://doi.org/10.55627/agrivet.003.03.0916.

Full text

Abstract:

This study investigates the effects of neem-coated granular urea on nitrogen volatilization and leaching in maize (Zea mays L.), focusing on nutrient availability (NO3-N and NH4-N) in both normal and saline soils. The pot experiment was conducted in a glass-panelled wire house CRD design with three replications. The experimental treatments included T1 (control without fertilizer), T2 (0.05 % neem-coated granular urea @ 200 kg ha⁻¹ + recommended P and K), T3 (0.08 % neem-coated granular urea @ 200 kg ha⁻1 + recommended P and K), T4 (0.01 % neem-coated granular urea @ 200 kg ha-1 + recommended P

APA, Harvard, Vancouver, ISO, and other styles

13

Vargas, Oscar L., and David R. Bryla. "Growth and Fruit Production of Highbush Blueberry Fertilized with Ammonium Sulfate and Urea Applied by Fertigation or as Granular Fertilizer." HortScience 50, no. 3 (2015): 479–85. http://dx.doi.org/10.21273/hortsci.50.3.479.

Full text

Abstract:

Fertigation with liquid sources of nitrogen (N) fertilizers, including ammonium sulfate and urea, were compared with granular applications of the fertilizers in northern highbush blueberry (Vaccinium corymbosum L. ‘Bluecrop’) during the first 5 years of fruit production (2008–12). The planting was established in Apr. 2006 at a field site located in western Oregon. The plants were grown on raised beds and mulched every 2 years with sawdust. Liquid fertilizers were injected through a drip system in equal weekly applications from mid-April to early August. Granular fertilizers were applied on eac

APA, Harvard, Vancouver, ISO, and other styles

14

Ibrahim, Khalid A., Muhammad Y. Naz, Shazia Shukrullah, Shaharin A. Sulaiman, Abdul Ghaffar, and Nasser M. AbdEl-Salam. "Controlling nitrogen pollution via encapsulation of urea fertilizer in cross-linked corn starch." BioResources 14, no. 4 (2019): 7775–89. http://dx.doi.org/10.15376/biores.14.4.7775-7789.

Full text

Abstract:

High fertilizer inputs augment the reactive nitrogen level in soil, air, and water. Unused reactive nitrogen acts as a pollutant and harms natural resources. This study focused on the thermal processing of corn starch into a coating material using disodium tetraborate and urea. The processed corn starch was coated over granular urea in a vertical bed coating reactor. The chemically modified starch, when compared with native starch, exhibited better stability and mechanical strength over time. The modified starch looked like a weak gel, and its loss modulus was dominated by the storage modulus.

APA, Harvard, Vancouver, ISO, and other styles

15

Fulkerson, William J., and Nathan Jennings. "Urea applied as a foliar spray or in granular form to subtropical dairy pastures of kikuyu (Cenchrus clandestinus) and Italian ryegrass (Lolium multiflorum) in eastern Australia." Crop and Pasture Science 71, no. 12 (2020): 1067. http://dx.doi.org/10.1071/cp20193.

Full text

Abstract:

The nitrogen-use efficiency (NUE) of a fertiliser has implications for pasture growth and the environment. This study aimed to compare application of urea as a foliar spray or in granular form, to kikuyu (Cenchrus clandestinus (Hochst. ex Chiov.) Morrone) and short-rotation ryegrass (Italian ryegrass, Lolium multiflorum Lam.) pastures in the subtropical dairy region of eastern Australia. The first experiment was a replicated grazing study on a site with a high plant-available soil N (75 mg nitrate-N/kg). The granular rate of urea was 46 kg N/ha.month equivalent, and the foliar spray rate was 4

APA, Harvard, Vancouver, ISO, and other styles

16

Dania, S. O., M. I. Abhanzioya, and E. U. Edukpe. "Comparative effects of urea, NPK and organomineral fertilizer on the growth and yield of rice in Ekpoma, Nigeria." Journal of Current Opinion in Crop Science 2, no. 2 (2021): 223–32. http://dx.doi.org/10.62773/jcocs.v2i2.69.

Full text

Abstract:

Soil nutrients deficiencies result in poor growth and yield of crops. The application fertilizer was necessary to improve its nutrient contents. Two seasons experiment was conducted at two locations of the Ambrose Alli University Teaching and Research Farm, Ekpoma, Nigeria. It was laid out in a Randomized Complete Block Design (RCBD) with seven treatments replicated thrice; treatments were: control, granular urea (GU), prilled urea (PU), full dose of PK+75 N through granular urea (GUPK), full dose of P&K+75% N prilled urea (PUPK), full dose of P&K+75% N through granular urea+25% N thro

APA, Harvard, Vancouver, ISO, and other styles

17

Hoque, MA, MR Karim, MS Miah, MA Rahman, and MM Rahman. "Field performance of BARI urea super granule applicator." Bangladesh Journal of Agricultural Research 41, no. 1 (2016): 103–13. http://dx.doi.org/10.3329/bjar.v41i1.27676.

Full text

Abstract:

Field performance of BARI Urea Super Granule (USG) applicator was evaluated on BARI research stations (Gazipur, Pabna, and Barisal) and farmers field (Pabna, Barisal, Magura,Narshingdi,Jhenadah, Sirajgang, Rajbari and Jhalkathi) during the boro season of 2012-13. The applicator was tested with four treatments- application of USG by hand (165 kg/ha), application of USG by BARI USG applicator (165 kg/ha), application of prilled urea at USG rate (165 kg/ha) and application of prilled urea at farmers practice. In the farmers field, USG applicators were evaluated with the traditional broadcasting

APA, Harvard, Vancouver, ISO, and other styles

18

Koscelny, Jeffrey A., and Thomas F. Peeper. "Herbicides Impregnated Onto Granular Fertilizer Carriers for Broadleaf Weed Control in Winter Wheat (Triticum aestivum)." Weed Technology 10, no. 3 (1996): 526–30. http://dx.doi.org/10.1017/s0890037x00040380.

Full text

Abstract:

The efficacy of sulfonylurea herbicides impregnated on granular fertilizers applied PPI or POST was compared to broadcast spray applications for annual broadleaf weed control in winter wheat. Henbit and bushy wallflower were controlled by chlorsulfuron or triasulfuron impregnated onto diammonium phosphate granular fertilizer applied PPI. Efficacy of these herbicides for annual broadleaf weed control was reduced by applying them POST with granular urea fertilizer carrier instead of with water carrier.

APA, Harvard, Vancouver, ISO, and other styles

19

Singh, Bhanu, Saba Siddiqui, Dhruvendra Singh Sachan, Sushil Kumar Yadav, and Shabbeer Ahmad. "Growth Parameters and Protein Content of Maize as Influenced by Sowing Methods and Different Levels of Nitrogen." International Journal of Plant & Soil Science 36, no. 9 (2024): 405–11. http://dx.doi.org/10.9734/ijpss/2024/v36i94989.

Full text

Abstract:

The field experiment was carried out at Research Farm, Integral University, Lucknow, Uttar Pradesh, India during Kharif season, 2021. The experiment envisages to study the effect of Sowing methods and different Nitrogen levels on yield and attributes of maize crop. The experiment was laid down in the Split Plot Design and the treatments were replicated three times. The maximum plant height of 56.92 cm, 235.17 cm and 237.16 cm was observed in the ridge method of sowing at knee height stage, tasselling stage and at harvest stage, respectively. Among nitrogen levels, the maximum plant height of 5

APA, Harvard, Vancouver, ISO, and other styles

20

Wilson, C. E., B. R. Wells, and R. J. Norman. "Fertilizer Nitrogen Uptake by Rice from Urea-Ammonium Nitrate Solution vs. Granular Urea." Soil Science Society of America Journal 58, no. 6 (1994): 1825. http://dx.doi.org/10.2136/sssaj1994.03615995005800060035x.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Schlossberg, Maxim, Benjamin McGraw, Ryan Sebring, and Kyle Hivner. "Nitrogen Recovery and Loss from Kentucky Bluegrass Fertilized by Conventional or Enhanced-Efficiency Urea Granules." Agronomy 8, no. 8 (2018): 144. http://dx.doi.org/10.3390/agronomy8080144.

Full text

Abstract:

Easy handling and low unit N cost make prilled urea (46-0-0) a popular fertilizer. While incomplete recovery of granular urea applications by turfgrass is documented, field evaluations of NH3 volatilization mitigation by coatings or bioinhibitor efficiency enhancements are limited. Meanwhile, NH3 emissions reduce air quality and contribute to nutrient loading of water resources. Our objectives were to quantify 3- and 6-d ammonia emission and 9-week turfgrass recovery of unincorporated granular fertilizer application to turfgrass. In 2014 and 2015, commercial urea-N fertilizers were broadcast o

APA, Harvard, Vancouver, ISO, and other styles

22

Dania, Stephen Okhumata, Edukpe, Esther Uzezi, and Eniola, Rita Idowu. "Effects of integrated application of inorganic and organic fertilizer on properties of soil planted with rice." World Journal of Advanced Research and Reviews 11, no. 2 (2021): 117–23. http://dx.doi.org/10.30574/wjarr.2021.11.2.0230.

Full text

Abstract:

Fertilizer application is essential in the improvement of soil quality and crop yield; it was therefore necessary to investigate the effects of integrated application of inorganic and organic base fertilizer on the soil chemical and physical properties. This experiment was conducted at the Ambrose Alli University Teaching and Research Farm, Ekpoma, Nigeria. The experiment was laid out in a Randomized Complete Block Design (RCBD) with seven treatments, replicated three times; the treatments were; control (zero application), Indorama granular urea (GU), prilled urea (PU), full dose of P&K+75

APA, Harvard, Vancouver, ISO, and other styles

23

Dania, Stephen Okhumata, Edukpe, Uzezi Esther, Eniola, and Idowu Rita. "Effects of integrated application of inorganic and organic fertilizer on properties of soil planted with rice." World Journal of Advanced Research and Reviews 11, no. 2 (2021): 117–23. https://doi.org/10.5281/zenodo.5203037.

Full text

Abstract:

Fertilizer application is essential in the improvement of soil quality and crop yield; it was therefore necessary to investigate the effects of integrated application of inorganic and organic base fertilizer on the soil chemical and physical properties. This experiment was conducted at the Ambrose Alli University Teaching and Research Farm, Ekpoma, Nigeria. The experiment was laid out in a Randomized Complete Block Design (RCBD) with seven treatments, replicated three times; the treatments were; control (zero application), Indorama granular urea (GU), prilled urea (PU), full dose of P&K+75

APA, Harvard, Vancouver, ISO, and other styles

24

Safwat, Safwat M., and Minerva E. Matta. "Adsorption of urea onto granular activated alumina: A comparative study with granular activated carbon." Journal of Dispersion Science and Technology 39, no. 12 (2018): 1699–709. http://dx.doi.org/10.1080/01932691.2018.1461644.

Full text

APA, Harvard, Vancouver, ISO, and other styles

25

KURMI, RAMKISHOR, SATISH DEVRAM LANDE, INDRA MANI, et al. "Electrical conductivity based algorithm for precise application of liquid nitrogenous fertilizers." Indian Journal of Agricultural Sciences 94, no. 8 (2024): 895–99. http://dx.doi.org/10.56093/ijas.v94i8.149590.

Full text

Abstract:

Precise application of nitrogenous fertilizers mainly urea ammonium nitrate (UAN) and granular urea (both pure and neem-coated) in aqueous form, is critically important for basal and foliar applications. The physicochemical properties of aqueous solution of these nitrogenous fertilizers plays important role in design of any liquid fertilizer application system. The study was carried out during 2019–20 at ICAR-Indian Agricultural Research Institute, New Delhi with an aim to develop algorithms for use in sensors-based systems for real time monitoring of available N concentration in the fertilize

APA, Harvard, Vancouver, ISO, and other styles

26

Beig, Bilal, Muhammad Bilal Khan Niazi, Zaib Jahan, et al. "Biodegradable Polymer Coated Granular Urea Slows Down N Release Kinetics and Improves Spinach Productivity." Polymers 12, no. 11 (2020): 2623. http://dx.doi.org/10.3390/polym12112623.

Full text

Abstract:

Low nitrogen (N) utilization efficiency due to environmental N losses from fertilizers results in high-cost on-farm production. Urea coating with biodegradable polymers can prevent these losses by controlling the N release of fertilizers. We calculated N release kinetics of coated granular with various biodegradable polymeric materials and its impact on spinach yield and N uptake. Different formulations were used, (i) G-1: 10% starch + 5% polyvinyl alcohol (PVA) + 5% molasses; (ii) G-2: 10% starch + 5% PVA + 5% paraffin wax (PW); (iii) G-3: 5% gelatin + 10% gum arabic + 5% PW; (iv) G-4: 5% mol

APA, Harvard, Vancouver, ISO, and other styles

27

Motasim, Ahmmed Md, Abd Wahid Samsuri, Arina Shairah Abdul Sukor, and Amin Mohd Adibah. "Nitrogen Dynamics in Tropical Soils Treated with Liquid and Granular Urea Fertilizers." Agriculture 11, no. 6 (2021): 546. http://dx.doi.org/10.3390/agriculture11060546.

Full text

Abstract:

The mineralization of urea fertilizer mostly regulates the nitrogen dynamics in the soil. A laboratory-scale study was conducted to compare the nitrogen dynamics in two tropical soil series incubated with either liquid urea (LU) or granular urea (GU) at 0, 300, 400 or 500 mg/kg of soil. The soils samples used in the experiment were the Bungor and Selangor soil series which have a sandy clay loam and clay texture, respectively. The NH4+-N, NO3−-N concentration in the soils were measured for four weeks to determine the urea-N mineralization while ten pore volumes of water were used for the NH4+-

APA, Harvard, Vancouver, ISO, and other styles

28

Febrianti, Febrianti, Nursyam Arrozi, and Indri Nur Fitria. "Karakteristik Pelapisan Urea dengan Metode Slow Release Fertilizer Menggunakan Stearin-Parafin." Jurnal Ilmiah Respati 15, no. 1 (2024): 1–14. http://dx.doi.org/10.52643/jir.v15i1.3703.

Full text

Abstract:

Pemupukan merupakan salah satu upaya untuk meningkatkan produktivitas pertanian. Efisiensi unsur nitrogen (N) dari pupuk urea cukup kecil karena bersifat higroskopis dan mudah larut dalam air sehingga mudah hilang saat pengaplikasian. Cara untuk meningkatkan efisiensi penggunaan pupuk urea yaitu menggunakan metode slow release fertilizer (SRF). Pelapisan atau coating merupakan salah satu teknik SRF untuk menurunkan kecepatan pelepasan zat hara pada pupuk. Penggunaan minyak atau lemak sebagai bahan baku coating urea memiliki keuntungan yaitu memiliki sifat hidrofobik, sehingga mampu menghambat

APA, Harvard, Vancouver, ISO, and other styles

29

Cai, Zhenghan, Xuan Yang, Guanfeng Lin, Cuixia Chen, Yandan Chen, and Biao Huang. "On preparing highly abrasion resistant binderless and in situ N-doped granular activated carbon." RSC Advances 8, no. 36 (2018): 20327–33. http://dx.doi.org/10.1039/c8ra03243b.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Aasam�e, E., E. Arumeel, M. Einard, and M. Veiderma. "Obtaining granular NPK fertilizers from single superphosphate and urea." Fertilizer Research 35, no. 3 (1993): 161–67. http://dx.doi.org/10.1007/bf00750634.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Fufaeva, V. M., and Yu A. Taran. "Technological scheme of obtaining urea with controlled release of nutrients process." Industrial processes and technologies 4, no. 2(12) (2024): 23–31. http://dx.doi.org/10.37816/2713-0789-2024-4-2(12)-23-31.

Full text

Abstract:

A technological scheme for the industrial production of urea with controlled release of nutrients is proposed. The main elements of the scheme presented are the units for the urea melt production, granulation and encapsulation. Prototypes were obtained and examined, and the main indicators of product quality were analyzed. Solubility curves for encapsulated urea of different dispersities were plotted, confirming the expediency of using narrow fractions of granular fertilizer at the encapsulation stage and the need to introduce an additional classification stage into the technological scheme.

APA, Harvard, Vancouver, ISO, and other styles

32

Stephen. O., Dania,, Adavbiele, Victor. J, and Sajo, Adeola. K. "COMPARATIVE EFFECTS OF DIFFERENT RATES OF NEEM OIL COATED AND UNCOATED UREA ON THE GROWTH AND YIELD PARAMETERS OF RICE." Plant Physiology and Soil Chemistry 3, no. 1 (2023): 35–39. http://dx.doi.org/10.26480/ppsc.01.2023.35.39.

Full text

Abstract:

Application of neem oil coated urea fertilizer is more effective in improving the growth and yield of cereals in a nutrient depleted soil compared to uncoated urea. Two (dry and rainy) seasons experiment was carried out at two locations of the Ambrose Alli University Teaching and Research Farm (Emaudo and Ujemen). The experiment was laid out in a Radomized Complete Block Design (RCBD) with eleven treatments replicated three times. The pre- planting soil testing was conducted in a laboratory and the results showed that the soil was deficient of essential nutrients and required fertilizer applic

APA, Harvard, Vancouver, ISO, and other styles

33

Dawar, K., M. Zaman, J. S. Rowarth, J. Blennerhassett, and M. H. Turnbull. "The impact of urease inhibitor on the bioavailability of nitrogen in urea and in comparison with other nitrogen sources in ryegrass (Lolium perenne L.)." Crop and Pasture Science 61, no. 3 (2010): 214. http://dx.doi.org/10.1071/cp09205.

Full text

Abstract:

Improving nitrogen (N)-use efficiency of applied urea is critical to maximise its uptake and decrease environmental impact. Two glasshouse-based studies were conducted to investigate the potential of incorporating urea fertiliser with urease inhibitor (N-(n-butyl) thiophosphoric triamide (NBPT) or ‘Agrotain’) to enhance fertiliser N uptake efficiency. Topsoil (0–0.075 m, Typic Haplustepts silt loam) from a pasture site near Lincoln, Canterbury, New Zealand, was collected and ryegrass (Lolium perenne L.) was grown from seed in standard plant trays maintained at soil moisture contents of 75–80%

APA, Harvard, Vancouver, ISO, and other styles

34

Dilley, Craig A., Gail R. Nonnecke, and Nick E. Christians. "Strawberry Growth and Weed Control in Response to Using Corn Gluten Hydrolysate." HortScience 31, no. 4 (1996): 663a—663. http://dx.doi.org/10.21273/hortsci.31.4.663a.

Full text

Abstract:

Corn gluten meal (CGM), a by-product of corn wet-milling, has weed control properties and is a N source. The weed control properties of CGM have been identified in previous studies. The hydrolysate is a water soluble, concentrated extract of CGM that contains between 10% to 14% N. Our objective was to investigate corn gluten hydrolysate as a weed control product and N source in `Jewel' strawberry production. The field experiment was a randomized complete block with a factorial arrangement of treatments with four replications. Treatments included application of granular CGM, CGM hydrolysate, ur

APA, Harvard, Vancouver, ISO, and other styles

35

VIDICAN, Roxana, Ioan ROTAR, Anca PLEȘA, Vlad STOIAN, and Florin PĂCURAR. "Reducing the Loss of Nitrogen in Athmosphere by Granular Urea." Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Agriculture 75, no. 2 (2018): 119–20. http://dx.doi.org/10.15835/buasvmcn-agr:2018.0017.

Full text

Abstract:

One of the main objectives for the future agriculture is to achieve high crop yields but also to maintain and improve soil quality. In 1995, the European Fertilizer Manufacturers Association (EFMA) prepared eight Booklets on Best Available Techniques (BAT) in response to the proposed EU Directive on integrated pollution prevention and control (IPPC Directive). In this Booklet it is show that ammonium nitrate is used extensively as a nitrogenous fertilizer. It is made exclusively by the reaction between gaseous ammonia and aqueous nitric acid, the production of which are covered in EFMA BAT Boo

APA, Harvard, Vancouver, ISO, and other styles

36

Tenuta and E. G. Beauchamp, M. "Nitrous oxide production from granular nitrogen fertilizers applied to a silt loam soil." Canadian Journal of Soil Science 83, no. 5 (2003): 521–32. http://dx.doi.org/10.4141/s02-062.

Full text

Abstract:

One field and two laboratory experiments were conducted to determine the relative magnitude and pattern of N2O production from several granular N fertilizers including urea, ammonium nitrate, calcium nitrate, ammonium sulfate and, in a laboratory experiment, monoammonium and diammonium phosphates. Several parameters, in particular soil water content, were studied for their roles in N2O production with these fertilizers. The field experiment was conducted at the Elora Research Station (20 km north of Guelph) on Conestoga silt loam during July on a site previously cropped to barley. Three method

APA, Harvard, Vancouver, ISO, and other styles

37

Maximov, Prokopiy N., Valeria Y. Lokteva, Victor A. Kutugin, and Maxim A. Rudmin. "Granulation of nanocomposites based on glauconite and urea: binding materials and characterization of activated mineral fertilisers." Bulletin of the Tomsk Polytechnic University Geo Assets Engineering 334, no. 12 (2023): 171–79. http://dx.doi.org/10.18799/24131830/2023/12/4367.

Full text

Abstract:

Relevance. Development of controlled release fertilisers and their granulation is at the forefront of agriculture and environment. With growing world population and increasing food demand, agriculture faces the challenge of efficient resource management and increased crop yields. In this environmentally friendly and easy to obtain and use fertilisers become a key element for sustainable development of agribusinesses. Aim. To study the complete cycle of creation of granular fertilisers based on new materials, including aggregation of mineral particles with different binding solutions and mechan

APA, Harvard, Vancouver, ISO, and other styles

38

Prins, W. H., and G. J. G. Rauw. "Use of large granular urea (LGU) to improve efficiency of broadcast urea in wetland rice cultivation." Fertilizer Research 19, no. 1 (1989): 21–27. http://dx.doi.org/10.1007/bf01080682.

Full text

APA, Harvard, Vancouver, ISO, and other styles

39

Manco, Antonio, Matteo Giaccone, Luca Vitale, et al. "Comparative Effects of Nitrogen Fertigation and Granular Fertilizer Application on Pepper Yield and Soil GHGs Emissions." Horticulturae 11, no. 6 (2025): 708. https://doi.org/10.3390/horticulturae11060708.

Full text

Abstract:

Quantitative greenhouse gas (GHG) budgets for Mediterranean pepper cultivation are still missing, limiting evidence-based nitrogen management. Furthermore, mitigation value of fertigation respect to granular fertilization in vegetable systems remains uncertain. This study therefore compared the GHG footprint and productivity of ‘papaccella’ pepper under two nitrogen fertilization methods: granular fertilization versus low-frequency fertigation with urea, each supplying about 63 kg N ha−1. Eight automated static chambers coupled to a cavity ring-down spectrometer monitored soil CO2 and N2O flux

APA, Harvard, Vancouver, ISO, and other styles

40

Tien, Vu Dinh. "APPLICATION OF A TRANSIENT HEAT CONDUCTION MODEL FOR DESIGN OF UREA PRILLING TOWER." Vietnam Journal of Science and Technology 56, no. 2A (2018): 43–50. http://dx.doi.org/10.15625/2525-2518/56/2a/12627.

Full text

Abstract:

Urea has highest nitrogen content up to 46.65 % in comparison with other fertilizers. Therefore, it is used widely in agriculture, forestry and additives for animal feed. Recently, Vietnam has 04 urea manufacturing plants in Bac Giang, Ninh Binh, Phu My and Ca Mau with total production estimated in 2014 to be 2,660 million Ton/year. Except for Ca Mau plant using granulator to produce urea granular, other plants are using prilling tower to produce prill urea. In a prilling tower, molten urea is sprayed form the top distributor. The droplets fall along the tower to exchange heat with countercurr

APA, Harvard, Vancouver, ISO, and other styles

41

BOLE, J. B. "UPTAKE OF 15N-LABELLED UREA AND 32P-LABELLED PHOSPHATE FROM ACID-BASED UREA PHOSPHATE AND GRANULAR FERTILIZERS." Canadian Journal of Soil Science 66, no. 1 (1986): 189–93. http://dx.doi.org/10.4141/cjss86-020.

Full text

Abstract:

The availability of nitrogen and phosphorus in fertilizer products labelled with both 32P and 15N was measured in a growth chamber experiment. The uptake of N and P by soft white spring wheat (Triticum aestivum L.) from a solution of acid urea phosphate fertilizer did not differ significantly from that of a mixture of granular urea and monammonium phosphate fertilizer. The fertilizer-P uptake efficiency of both sources was higher in a neutral soil than in acid or calcareous soils. Banding either fertilizer increased the uptake of fertilizer P compared with sources mixed with the soil, but did

APA, Harvard, Vancouver, ISO, and other styles

42

Du, Yi, Wei Chang Hao, Jun Ying Zhang, and Tian Min Wang. "Large-Scale Fabrication of ZnO Hexagonal Rods Arrays by a Simple Chemical Solution Method." Key Engineering Materials 336-338 (April 2007): 2169–72. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.2169.

Full text

Abstract:

In this paper, nanostructure zinc oxide (ZnO) hexagonal rods arrays on ZnO granular films coated substrates were fabricated by a simple chemical solution method. The shapes and structures can be controlled by changing the reactants and experimental conditions. X-ray diffraction (XRD), field-emission scanning electron microscopy (FESEM) equipped with energy dispersive spectrometer (EDS), and fluorescence spectrum were used to characterize the structures and luminescent properties. The best reacting condition has been discussed. Urea was found playing an important role in forming rods. The granu

APA, Harvard, Vancouver, ISO, and other styles

43

Briscoe, Kyle, Grady Miller, Scott Brinton, Dan Bowman, and Charles Peacock. "Evaluation of ‘Miniverde’ Bermudagrass and ‘Diamond’ Zoysiagrass Putting Green Establishment using Granular Fertilizer Applications." HortScience 47, no. 7 (2012): 943–47. http://dx.doi.org/10.21273/hortsci.47.7.943.

Full text

Abstract:

‘Miniverde’ bermudagrass [Cynodon dactylon (L.) Pers. × C. transvaalensis (Burtt-Davy)] and ‘Diamond’ zoysiagrass [Zoysia matrella (L.) Merr.] are becoming more widely used on putting greens in the transition zone. Field studies were conducted from June through Aug. 2008 and 2009 in Raleigh, NC, and in Jackson Springs, NC, respectively. The objective was to determine the influence of granular fertilizer programs consisting of various nitrogen (N) sources and rates on the establishment of ‘Miniverde’ and ‘Diamond’ from sprigs. In 2008, the experimental area consisted of a putting green built to

APA, Harvard, Vancouver, ISO, and other styles

44

Kumah-Amenudzi, D., Asiedu, E.K., Agyarko, K., et al. "Effects of NPKS Granular and Briquette Fertilizers on Some Soil Chemical Properties and Yield Parameters of Maize (Zea mays L.)." Asian Journal of Soil Science and Plant Nutrition 10, no. 2 (2024): 1–12. http://dx.doi.org/10.9734/ajsspn/2024/v10i2255.

Full text

Abstract:

The primary objective of this multilocational study was to investigate the impact of NPKS granule and briquette fertilizers, on selected soil chemical properties and yield of maize. The treatments were made up of different rates of NPKS granules and briquette fertilizers namely: T1 (Control), T2 (Granule NPK 10- 20-20 (200 kg ha-1) + Granule Urea 217.2 kg ha-1), T3 (Granule NPKS 10- 20-20-3 (600 kg ha-1) + Granule Urea 87 kg ha-1 GrU), T4 (Granule NPKS 10- 20-20-3 (400 kg ha-1) + Granule Urea 87 kg ha-1 GrU), T5 (Granule NPKS 10- 20-20-3 (400 kg ha-1) + No Urea), T6 (Briquette NPKS 10- 20-20-3

APA, Harvard, Vancouver, ISO, and other styles

45

Souza, Taylor Lima de, Douglas Ramos Guelfi, André Leite Silva, André Baldansi Andrade, Wantuir Filipe Teixeira Chagas, and Eduardo Lopes Cancellier. "Ammonia and carbon dioxide emissions by stabilized conventional nitrogen fertilizers and controlled release in corn crop." Ciência e Agrotecnologia 41, no. 5 (2017): 494–510. http://dx.doi.org/10.1590/1413-70542017415003917.

Full text

Abstract:

ABSTRACT The market of stabilized, slow and controlled release nitrogen (N) fertilizers represents 1% of the world fertilizer consumption. On the other hand, the increase in availability, innovation and application of these technologies could lead to the improvement of N use efficiency in agroecossystems and to the reduction of environmental impacts. The objective of this study was to quantify agronomic efficiency relative index, ammonia volatilization, and CO2 emissions from conventional, stabilized and controlled release N fertilizers in corn summer crop. The experiment was carried out in a

APA, Harvard, Vancouver, ISO, and other styles

46

Motasim, Ahmmed Md, Abd Wahid Samsuri, Arina Shairah Abdul Sukor, and Amin Mohd Adibah. "Gaseous Nitrogen Losses from Tropical Soils with Liquid or Granular Urea Fertilizer Application." Sustainability 13, no. 6 (2021): 3128. http://dx.doi.org/10.3390/su13063128.

Full text

Abstract:

Gaseous loss of N leads to lower nitrogen use efficiency (NUE) of applied urea and N content of the soil. This laboratory study was conducted to compare the nitrogen losses from two tropical soil series (Bungor sandy clay loam and Selangor clay) incubated with either liquid urea (LU) or granular urea (GU) at 0, 300, 400, or 500 mg/kg of soil for thirty days. The NH3 volatilization, N2O emission, and N content in the soils were measured throughout the incubation period. For the same application rate, the total NH3 volatilization loss was higher in GU-treated soils than the LU-treated soils. NH3

APA, Harvard, Vancouver, ISO, and other styles

47

Watson, Catherine J. "An assessment of granular urea/ammonium sulphate and urea/potassium nitrate fertilizers on nitrogen recovery by ryegrass." Fertilizer Research 18, no. 1 (1988): 19–29. http://dx.doi.org/10.1007/bf01064175.

Full text

APA, Harvard, Vancouver, ISO, and other styles

48

Pertuit, A. J. "THE EFECTS OF LEONARDITE ON GROWTH OF TOMATO SEEDLINGS." HortScience 29, no. 7 (1994): 739h—739. http://dx.doi.org/10.21273/hortsci.29.7.739h.

Full text

Abstract:

Lycopersicon Lycopersicum `Mountain Pride' seedlings were greenhouse grown for 8 weeks in pots of Congaree silt loam amended with 1/8 volume leonardite. They received the recommended rate or half the recommended rate of 5-10-10 granular fertilizer (surface applied) with urea or ammonium sulphate as N sources. Leonardite enhanced plant growth (plant height, fresh and dry weights, stem diameter, and leaf area) only when utilized with a complete fertilizer, regardless of the N source; however, it was more effective with ammonium sulphate than with urea. With ammonium sulphate, the amount of N app

APA, Harvard, Vancouver, ISO, and other styles

49

Goos, R. Jay, and Elizabeth Guertal. "Evaluation of Commercial Additives Used with Granular Urea for Nitrogen Conservation." Agronomy Journal 111, no. 3 (2019): 1441–47. http://dx.doi.org/10.2134/agronj2018.08.0493.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Eiroa, M., C. Kennes, and M. C. Veiga. "Formaldehyde and urea removal in a denitrifying granular sludge blanket reactor." Water Research 38, no. 16 (2004): 3495–502. http://dx.doi.org/10.1016/j.watres.2004.04.055.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!