Preparation and Characterization of Environmentally Friendly Controlled Release Fertilizers Coated by Leftovers-Based Polymer

Jia, Cong; Lu, Peng; Zhang, Min

doi:10.3390/pr8040417

Cited by 19 publications

(3 citation statements)

References 29 publications

(25 reference statements)

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“…Soil applied nanofertilizers enable the movement of nutrients in the soil, facilitating its release and penetration into the roots. Controlled-release and slow-release nanofertilizers are used to supply nutrients in suitable concentration to plants over a prolonged interval of time, avoiding the continuous fertilizer application, and reducing the environmental risks (Jiang et al, 2019;Jia et al, 2020;Yoon et al, 2020). Reduction of N losses has been reported using N charged porous nanomaterials, such as zeolites (Manikandan and Subramanian, 2017), clays (Sarkar et al, 2014), or biodegradable polymers such as chitosan (Sharif et al, 2018).…”

Section: Agronomic Impactmentioning

confidence: 99%

Nanofertilizers: A Cutting-Edge Approach to Increase Nitrogen Use Efficiency in Grasslands

Mejías

Salazar

Amaro

et al. 2021

Front. Environ. Sci.

108

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Nitrogen (N) is the most critical element limiting agricultural production at a global scale. Despite many efforts, the N use efficiency (NUE) in agriculture remains in a range of less than 50%. Reaching targeted crop yields has resulted in N overuse, which is an economic and environmental concern worldwide. The continuous exploration of innovative solutions has led to the synthesis of novel nanomaterials, resulting in a powerful tool for the development of new technological products. Nanofertilizers are one of the most promising engineered materials that are being tested, either for soil or foliar applications. Encouraging results have been obtained using nanofertilizers in different plant species, however, limited information has been reported about its use in grasslands. Commonly, N is applied to grassland soils as granular fertilizers, which may result in significant losses via surface runoff or leaching, ammonia (NH3) volatilization and N oxides (N2O, NO, NOx) emissions. Nitrogen nanofertilizers are expected to increase NUE by improving the effectiveness of N delivery to plants and reducing N losses to the environment. Information on the efficiency of the use of N nanofertilizers in grasslands species is scarce and the application strategies that can be used to avoid N losses are poorly understood. New scenarios of increasing economic and environmental constraints may represent an opportunity for N nanofertilizers application in grasslands. This article reviews its potential use as an innovative approach to improve NUE and reduce N losses to the wider environment, analyzing potential shortcomings and future considerations for animal food chains.

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Section: Agronomic Impactmentioning

confidence: 99%

Nanofertilizers: A Cutting-Edge Approach to Increase Nitrogen Use Efficiency in Grasslands

Mejías

Salazar

Amaro

et al. 2021

Front. Environ. Sci.

108

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“…The term CRF is generally applied to composts in which the rate, pattern and deliverytime are perceived and controllable through planning. Whereas, SRFs are set apart by supplement discharge at a slower ratein any case, the rate and time of delivery are not controlled (Trenkel, 2010 andJia et al, 2020. These elements might be affected by dealing with conditions like a storage facility, transport and conveyance in the field, notwithstanding soil conditions, for example; dampness content, dissolving and drying, defrosting and freezing and organic activity (Shaviv andMikkelsen, 1993 andShaviv, 2001).…”

Section: Introductionmentioning

confidence: 99%

Application of Nano fertilizers on Vegetable Production: A review

Surbhi¹,

Chamroy²

2022

EEC

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Agriculture is the backbone of many developing countries, the majority of the country’s population depends on it for their livelihood. The total populace is developing by around 83 million individuals every year, so there is a need to increment rural usefulness. At present, promising production of vegetable crops can be accomplished by expanding the arable land or by expanding crop yields by working on the productivity of the resources utilized. For these purposes farmers had been utilizing chemical fertilizers and irrigation water indiscriminately on about 60% of our currently arable agricultural land which resulted in number of negative consequences. Therefore, there has been a great scope to utilize present-day innovations like nanotechnology (NT), since nano-fertilizers enhance the plant’s ability to absorb nutrients and agronomic structures of the soil that enhance plant growth and productivity. Economically nanotechnology has expanded the effectiveness of nano compost fixings and added to expanded usefulness and yield. In this review, extensive research is shown on nanotechnology as an effective way to address the problems of fertilizer losses, overcome the negative impacts of indiscriminate uses of fertilizers and discusses the findings of field research and the application of nano-fertilizers on plants and their impact on vegetable crops.

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“…SRFs are generally produced by coating the conventional fertilizer granule with polymers derived from fossil fuels (i.e., petroleum), such as polyethylene, polystyrene, and resins [4]. Although these materials have been shown to be useful to increase the efficiency of nutrient use and decrease losses, they can be toxic and non-biodegradable, in addition to having a high production cost [5].…”

Section: Introductionmentioning

confidence: 99%

Activated Biochar-Based Organomineral Fertilizer Delays Nitrogen Release and Reduces N2O Emission

et al. 2022

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Leaching and nitrous oxide (N2O) emissions can represent substantial nitrogen (N) losses from chemical fertilizers, and slow-release fertilizers (SRFs) can mitigate these effects. Thus, biochar can be an alternative from an agronomic and environmental point of view to synthesize SRFs due to its physicochemical characteristics. We investigated the effect of nitrogenous organomineral fertilizers (OMF-N) formulated based on activated biochar on N losses by leaching and N2O emissions. The OMF-N were developed from a dry mechanical pelleting process with different biochar and urea proportions (2:1; 1:2, and 1:4). Three experiments were conducted using four fertilizer sources (urea, OMF-N 2:1, OMF-N 1:2, and OMF-N 1:4): i. to analyze the kinetics of N release from OMF-N at times: 5, 15, 30, 60, 90, and 120 min; ii. for N2O emission analysis determined at 3, 6, 10, 14, 24, 44, 54, 64, 74, 84, 104, and 118 days after application to the soil; and iii. for a double factorial design that was adopted to analyze N leaching, consisting of the combination of applying 160 kg N ha−1 of fertilizers in PVC columns at different depths (20, 40, 60, and 80 cm) and analyzed at five times (1, 7, 14, 21, and 28 days). FTIR spectroscopic analysis, specific surface area, porosity, and surface morphology showed physicochemical interactions of N of the OMF with biochar; the N from the OMF interacts physically and chemically binds to the functional surfaces of biochar, delaying the dissolution flow. The OMF-N proved capable of retaining 48% to 60% more NH4+ and reduced the release of Ntotal from urea from 27% to 60%, as well as reduced N2O emissions from 47% to 66%. Although absolute CO2 emissions intensified with the application of OMF-N, its use provides C sequestration in the soil to due to the recalcitrant C of the biochar, which results in a positive input-output balance in the system. The NO3− concentration profiles revealed that the OMF-N application was able to reduce leaching in the soil to a depth of 80 cm. These studies enabled better understanding of the processes involved in the biochar:urea interaction and revealed that biochar can be used as an organic matrix in the synthesis of SRF.

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Preparation and Characterization of Environmentally Friendly Controlled Release Fertilizers Coated by Leftovers-Based Polymer

Cited by 19 publications

References 29 publications

Nanofertilizers: A Cutting-Edge Approach to Increase Nitrogen Use Efficiency in Grasslands

Nanofertilizers: A Cutting-Edge Approach to Increase Nitrogen Use Efficiency in Grasslands

Application of Nano fertilizers on Vegetable Production: A review

Activated Biochar-Based Organomineral Fertilizer Delays Nitrogen Release and Reduces N2O Emission

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