Improving the efficiency of urea-based fertilization leading to reduction in ammonia emission

Klimczyk, Marta; Siczek, Anna; Schimmelpfennig, Lech

doi:10.1016/j.scitotenv.2021.145483

Cited by 73 publications

(53 citation statements)

References 45 publications

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“…According to our second hypothesis, we observed that both coatings decreased the NH 3 emission from urea after its soil application, although it was not statistically significant in case of ZnS treatment ( Figure 4 A). Our findings are in line with Klimczyk , et al [ 50 ]) who observed that controlled release urea fertilizer decreased NH 3 emission by 30–70% in laboratory and field based studies. Similarly, Zhang , et al [ 51 ]) revealed in a meta-analysis study that controlled release fertilizer decreased the NH 3 emission by nearly half of the uncoated urea.…”

Section: Discussionsupporting

confidence: 93%

Zinc Plus Biopolymer Coating Slows Nitrogen Release, Decreases Ammonia Volatilization from Urea and Improves Sunflower Productivity

et al. 2021

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Currently, the global agriculture productivity is heavily relied on the use of chemical fertilizers. However, the low nutrient utilization efficiency (NUE) is the main obstacle for attaining higher crop productivity and reducing nutrients losses from these fertilizers to the environment. Coating fertilizer with micronutrients and biopolymer can offer an opportunity to overcome these fertilizers associated problems. Here, we coated urea with zinc sulphate (ZnS) and ZnS plus molasses (ZnSM) to control its N release, decrease the ammonia (NH3) volatilization and improve N utilization efficiency by sunflower. Morphological analysis confirmed a uniform coating layer formation of both formulations on urea granules. A slow release of N from ZnS and ZnSM was observed in water. After soil application, ZnSM decreased the NH3 emission by 38% compared to uncoated urea. Most of the soil parameters did not differ between ZnS and uncoated urea treatment. Microbial biomass N and Zn in ZnSM were 125 and 107% higher than uncoated urea, respectively. Soil mineral N in ZnSM was 21% higher than uncoated urea. Such controlled nutrient availability in the soil resulted in higher sunflower grain yield (53%), N (80%) and Zn (126%) uptakes from ZnSM than uncoated fertilizer. Hence, coating biopolymer with Zn on urea did not only increase the sunflower yield and N utilization efficiency but also meet the micronutrient Zn demand of sunflower. Therefore, coating urea with Zn plus biopolymer is recommended to fertilizer production companies for improving NUE, crop yield and reducing urea N losses to the environment in addition to fulfil crop micronutrient demand.

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Section: Discussionsupporting

confidence: 93%

Zinc Plus Biopolymer Coating Slows Nitrogen Release, Decreases Ammonia Volatilization from Urea and Improves Sunflower Productivity

et al. 2021

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“…The way it reacts with urease is through binding with two nickel ions and oxygen originating from the carbamate bridge. This activity reduces the risk that urea will reach the nickel ions (Klimczyk et al, 2021).…”

Section: Synthetic Urease Inihibitorsmentioning

confidence: 99%

“…Studies reported by Wang et al (2020) showed that using NBPT can reduce NH 3 volatilization by 50%. The effectiveness of reducing ammonia emissions with an inhibitor depends on several factors, including the type of soil and cultivation system, and also the climate conditions (Klimczyk et al, 2021). In an experiment with five different inhibitors (two urease inhibitors and three nitrification inhibitors), the use of NBPT together with urea postponed the NH 3 emission peak from 3 to 4 days.…”

Section: Synthetic Urease Inihibitorsmentioning

confidence: 99%

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Effectiveness of the use of urease inhibitors in agriculture: a review

Matczuk¹,

Siczek²

2021

Int. Agrophys.

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A b s t r a c t. Urea is one of the most popular fertilizers in the world. In 2018, the global production capacity of urea reached the level of 210 million metric tonnes. Due to the fact that the world population is growing steadily, the demand for food is increasing, and thus also the consumption of urea. The use of urea-based fertilizers has negative consequences in the form of ammonia volatilization. The solution to this problem may be the use of urease inhibitors. Currently, inhibitors of synthetic origin are available on the market, while the use of inhibitors of natural origin is still being under trial. The use of the most commonly used urease inhibitor -NBPT together with urea causes a reduction in ammonia emissions and has a beneficial effect on crop productivity. At the same time, the search for inhibitors of natural origin is underway, which, apart from reducing ammonia volatilization into the atmosphere, could have a positive effect on crop yields. In this paper, recent advances in this field are reviewed.K e y w o r d s: soil urease, urea, urease inhibitors, ammonia volatilization

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“…On the other hand, the high dissolution rate of urea causes substantial increases in the emission of greenhouse gases (GHGs), including CO 2 , N 2 O, and CH 4 [15]. Moreover, ammonia (NH 3 ) emissions from terrestrial ecosystems can cause negative impacts on the atmosphere as well as on the rhizosphere (microbial diversity/activity, seed germination, and root architecture) [16,17].…”

Section: Introductionmentioning

confidence: 99%

Double Coating as a Novel Technology for Controlling Urea Dissolution in Soil: A Step toward Improving the Sustainability of Nitrogen Fertilization Approaches

El-Ghamry

El-Naggar²,

Elgorban

et al. 2021

Sustainability

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This research introduces a novel technology for reducing ordinary urea (OU) dissolution by developing double-coated urea (DCU) using phosphate rock (PR) as an outer layer to reduce its hydrolysis and sodium thiosulfate (STS) as an inner layer to inhibit the urease enzyme and nitrification process. Due to the double coating, the nitrogen content of DCU was lower than that of the OU (36.7% vs. 46.5%). The ultramorphological analysis using scanning electron microscopy (SEM) indicated that the controlled coating of urea, resulting from the outer layer of PR, was due to the adhesive effect of urea formaldehyde (UF), which was used as a glue. In addition, the transmission electron microscopy (TEM) analysis of the DCU revealed its high degree of agglomeration. The mechanical hardness of DCU was higher compared to that of OU (1.38 vs. 1.08 kgf). The seven-day dissolution rate test showed that OU reached 100% dissolution on the fifth day. The rate of DCU, however, was significantly lower (32% dissolution in the seventh day). Cumulative NO3− and NH4+ losses from a clay soil sample reached 68.3% and 7.6%, respectively, with OU measuring 40.5% compared to 4.9% for DCU 70 days after application. Field experiments showed a significant improvement in the marketable yield and agronomic nitrogen efficiency (ANE) of maize grains and zucchini fruits fertilized with DCU. Furthermore, the macro and micronutrient concentrations in maize grains and zucchini fruits showed an increase in the plants fertilized with DCU. In summary, double coating can be introduced as a novel technique to control urea dissolution in soil.

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Improving the efficiency of urea-based fertilization leading to reduction in ammonia emission

Cited by 73 publications

References 45 publications

Zinc Plus Biopolymer Coating Slows Nitrogen Release, Decreases Ammonia Volatilization from Urea and Improves Sunflower Productivity

Zinc Plus Biopolymer Coating Slows Nitrogen Release, Decreases Ammonia Volatilization from Urea and Improves Sunflower Productivity

Effectiveness of the use of urease inhibitors in agriculture: a review

Double Coating as a Novel Technology for Controlling Urea Dissolution in Soil: A Step toward Improving the Sustainability of Nitrogen Fertilization Approaches

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