Nitrogen Losses and Potential Mitigation Strategies for a Sustainable Agroecosystem

Mahmud, Kishan; Panday, Dinesh; Mergoum, Anaas; Missaoui, Ali

doi:10.3390/su13042400

Cited by 127 publications

(94 citation statements)

References 200 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Both climate and soil have a great impact on N-use efficiency through their effect on water regimes of agricultural fields or on the N cycle in soilplant systems. They contribute to change (i) transformation of N applied by fertilization, (ii) plant N assimilation, (iii) losses of N by leaching, denitrification/volatilization, or surface runoff [2,35,37].…”

Section: Introductionmentioning

confidence: 99%

Yield Response, Quality Traits, and Nitrogen-Use Efficiency of a Burley Tobacco Crop Grown in Mediterranean Areas (Southern Italy) as Affected by Intensive N Management

et al. 2021

View full text Add to dashboard Cite

Tobacco is an annual cash crop widely cultivated over the world, which generally needs great amounts (N) of nitrogen to achieve the best yield and quality. However, with a view to sustainable and environmentally friendly agriculture, also for this crop, the reduction in N fertilization is a priority, but without negatively affecting the yield and quality of the cured product. Therefore, field experiments were conducted during 2002 and 2003 on light air-cured (Burley) tobacco at three different locations of the Campania region (Southern Italy) where high-quality light air-cured (Burley) tobacco is traditionally cultivated. At each location, the following six N fertilization treatments were compared with four replications (blocks): (i) a not fertilized control (N0); (ii) 50 kg N ha−1 (N50); 90 kg N ha−1 (N90); 130 kg N ha−1 (N130); 170 kg N ha−1 (N170); 210 kg N ha−1 (N210). The yield of cured leaves appeared positively influenced by N fertilization but not at a rate higher than 170 kg ha−1. N fertilization directly influenced nitrates and the total N content of cured leaves at all locations. The greater values of both parameters were reached at N130 or N90, respectively, at Vitulazio (CE), N170 at Bellizzi (SA), and N90 at San Giorgio del Sannio (BN). The fire holding capacity increased with N fertilization up to N170 treatment (12–13 s at CE and BN but just 8 s at SA). L* (brightness) decreased with increasing N fertilization giving cured leaves less bright and opaquer. The a/b ratio (a*, green/red; b*, blue/yellow) increased with N treatments producing cured leaves of dark hazelnut. The best scores were assigned to cured products obtained by plants fertilized with 170 kg N ha−1. N-use efficiencies were negatively influenced by N fertilization. The best NUE and N-uptake efficiency was recorded in 2002 at Vitulazio (CE), in spite of a higher NO3-N before N fertilization than other locations.

show abstract

Section: Introductionmentioning

confidence: 99%

Yield Response, Quality Traits, and Nitrogen-Use Efficiency of a Burley Tobacco Crop Grown in Mediterranean Areas (Southern Italy) as Affected by Intensive N Management

et al. 2021

View full text Add to dashboard Cite

show abstract

“…However, though increased nitrogen fertilization of the crop may result in high nitrogen uptake, it is not always used to increase biomass production. Moreover, excessive nitrogen fertilizer use reduces nitrogen use efficiency, raises production costs, and pollutes the environment [ 12 , 13 ]. The results showed that the trends of the phosphate-P and potassium contents were different from that of the nitrate-N content.…”

Section: Resultsmentioning

confidence: 99%

Cost-Effective Modern Chemical Sensor System for Soil Macronutrient Analysis Applied to Thai Sustainable and Precision Agriculture

Apichai

Saenjum

Pattananandecha

et al. 2021

Plants

View full text Add to dashboard Cite

A modern chemical sensor system (M-CSS) was developed for the cost-effective chemical analysis of Thai precision and sustainable agriculture (TPSA), which is suitable in rural Thailand and elsewhere. The aim of this study was to achieve precision and sustainable agriculture (P-SA). The M-CSS functions according to the International Union of Pure and Applied Chemistry (IUPAC) definition and incorporates information and communication technologies (ICTs). The developed chemical sensor in the M-CSS is based on a colorimetric determination by a smart device/smartphone. Additionally, the preparation of soil samples was investigated. Soil samples of optimal conditions were extracted using an acid extractant in the ratio of one to two (extract to soil sample). Then, phosphate-phosphorous and potassium were detected with the M-CSS, which showed an excellent correlation with the standard reference methods. Interestingly, it is noteworthy that the at-site analysis of the developed method could detect a greater nitrate-nitrogen content than that of the standard reference method. The developed cost-effective analysis for the plant macronutrient content in the soil, including nitrate-nitrogen, phosphate-phosphorous, and potassium, was demonstrated for organic vegetable farms at the real P-SA research site in Northern Thailand. The obtained results can guide the management of the application of fertilizers. The proposed M-CSS exhibited the potential to be used for at-site soil macronutrient analysis and represents the starting point of Thai precision and sustainable agriculture (TPSA).

show abstract

“…Modern agriculture is called upon to respond to the increasing demands for food in an ever-growing world population, which according to experts is expected to reach 9 billion people in 2050 [1,2]. To produce food in larger quantities, agriculture must continuously resort to fertilizers [3].…”

Section: Introductionmentioning

confidence: 99%

“…In countries such as India, whose diet is supported almost exclusively by agricultural products [5], urea accounts for 80% of the fertilizers used in the farming sector. However, the continuous replenishment of organic and inorganic forms of nitrogen in soils has altered the natural cycle of this element over the past 50 years [2,5]. An excessive quantity of nitrogen fertilizers is supplied in the soil, because only about half of the applied quantity is available and is finally absorbed by crops [6].…”

Section: Introductionmentioning

confidence: 99%

The Fate of Nitrogen from Soil to Plants: Influence of Agricultural Practices in Modern Agriculture

2021

View full text Add to dashboard Cite

Nitrogen is an element present on Earth in different forms, such as gaseous in the air, dissolved in water, immobilized in the soil, as well as biologically bound in all living organisms. The transition from one form to another constitutes the nitrogen cycle. Current agricultural systems rely on nitrogen fertilizers, which represent the reactive or biologically available nitrogen in soil. The excessive presence of reactive nitrogen in the environment has become a threat to soil, water, and air. The increasing demands for food in the world are associated with significant increase in nitrogen fertilizers inputs which threatens the environment and living organisms. The quantities of nitrogen used per capita in developed countries exceed those in developing countries. However, developed countries are regulated by restrictions of fertilizers inputs in agriculture, whereas such regulations do not exist in most of the developing countries. The need to resort to alternative and eco-sustainable strategies to mitigate the pollution related to human activities, is increasingly evident. This review aims to highlight the fate of nitrogen through the main agricultural practices in modern agriculture. Special attention was given to rocket (Eruca sativa) which is considered a nitrate hyper-accumulator and was used as a case study in the present review. Finally, some eco-sustainable solutions, useful for mitigating or preventing the excessive release of harmful forms of nitrogen into the environment, were also discussed.

show abstract

Nitrogen Losses and Potential Mitigation Strategies for a Sustainable Agroecosystem

Cited by 127 publications

References 200 publications

Yield Response, Quality Traits, and Nitrogen-Use Efficiency of a Burley Tobacco Crop Grown in Mediterranean Areas (Southern Italy) as Affected by Intensive N Management

Yield Response, Quality Traits, and Nitrogen-Use Efficiency of a Burley Tobacco Crop Grown in Mediterranean Areas (Southern Italy) as Affected by Intensive N Management

Cost-Effective Modern Chemical Sensor System for Soil Macronutrient Analysis Applied to Thai Sustainable and Precision Agriculture

The Fate of Nitrogen from Soil to Plants: Influence of Agricultural Practices in Modern Agriculture

Contact Info

Product

Resources

About