Analysis of Phosphorus Dependency in Asia

Webeck, Elizabeth; Matsubae, Kazuyo; Nakajima, Kenichi; Nansai, Keisuke; Nagasaka, Tetsuya

doi:10.3392/sociotechnica.11.119

Cited by 16 publications

(6 citation statements)

References 18 publications

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“…Global demand for P fertilizer is increasing continuously, whereas global commercial phosphate reserves are estimated to be depleted within a few decades 3 , 4 and no known substitute for P is available presently 5 , 6 . In India, the soils are either low (49.3% of soils) or medium (48.8% of soils) in terms of available P 7 , 8 and this necessitates the country to import the phosphorus-based fertilizers in a larger scale with 90% dependency 9 , 10 . It is therefore imperative that one should be ready with alternative solutions for this problem, e.g.…”

Section: Introductionmentioning

confidence: 99%

Marker assisted improvement of low soil phosphorus tolerance in the bacterial blight resistant, fine-grain type rice variety, Improved Samba Mahsuri

Swamy

Anila

Kale

et al. 2020

Sci Rep

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Improved-Samba-Mahsuri (ISM), a high-yielding, popular bacterial blight resistant (possessing Xa21, xa13, and xa5), fine-grain type, low glycemic index rice variety is highly sensitive to low soil phosphorus (P). We have deployed marker-assisted backcross breeding (MABB) approach for targeted transfer of Pup1, a major QTL associated with low soil P tolerance, using Swarna as a donor. A new co-dominant marker, K20-1-1, which is specific for Pup1 was designed and used for foreground selection along with functional markers specific for the bacterial blight resistance genes, Xa21, xa13, and xa5. A set of 66 polymorphic SSR marker were used for the background selection along with a pair of flanking markers for the recombination selection in backcross derived progenies and in BC2F2 generation, 12 plants, which are homozygous for Pup1, all the three bacterial blight resistance genes and possessing agro-morphological traits equivalent to or better than ISM were selected and selfed to produce BC2F3s. They were evaluated in plots with low soil P and normal soil P at ICAR-IIRR, Hyderabad for their low soil P tolerance, and bacterial blight resistance and superior lines were advanced to BC2F6. One of the lines, when tested at multiple locations in India was found promising under both normal as well as low soil P conditions.

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Section: Introductionmentioning

confidence: 99%

Marker assisted improvement of low soil phosphorus tolerance in the bacterial blight resistant, fine-grain type rice variety, Improved Samba Mahsuri

Swamy

Anila

Kale

et al. 2020

Sci Rep

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“…To meet their national demand for P resources, Asian countries tend to be heavily dependent on imports [47,48]. Smit et al (2015) [14] reported that the import of fertilizer was decreasing but that the import of food and feed additives was increasing.…”

Section: Socioeconomic Factorsmentioning

confidence: 99%

“…Population growth, rural-urban migration and urbanization were the main drivers for the higher P footprint in China [32,35,46]. Along with urbanization, population growth and economic growth have been reported as the dominant factors expected to result in a higher P demand over time in Asia [47,48].…”

Section: Socioeconomic Factorsmentioning

confidence: 99%

The Effect of Religious Dietary Cultures on Food Nitrogen and Phosphorus Footprints: A Case Study of India

2021

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The excessive consumption of nitrogen (N) and phosphorus (P), two vital nutrients for living organisms, is associated with negative environmental and health impacts. While food production contributes to a large amount of N and P loss to the environment, very little N and P is consumed as food. Food habits are affected by multiple regulations, including the dietary restrictions and dictates of various religions. In this study, religion-sensitive N-Calculator and P-Calculator approaches were used to determine the impact of religious dietary culture on the food N and P footprints of India in the major religious communities. Using 2013 data, the food N footprint of Hindus, Muslims, Christians, and Buddhists was 10.70, 11.45, 11.47, and 7.39 kg-N capita−1 year−1 (10.82 kg-N capita−1 year−1 was the national average), and the food P footprint was 1.46, 1.58, 1.04. 1.58 and 1.58 kg-P capita−1 year−1 (1.48 kg-P capita−1 year−1 was the national average). The findings highlight the impact of individual choice on the N and P food footprints, and the importance of encouraging the followers of religion to follow a diet consistent with the food culture of that religion. The results of this study are a clear indication of the requirement for religion-sensitive analyses in the collecting of data pertinent to a particular country for use in making government policies designed to improve the recycling of food waste and the treatment of wastewater.

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“…If we suppose that that phosphorus rock has a P2O5 of 30%, the hidden phosphorus flow from the steelmaking process was equivalent to 2% of the global phosphorus supply in 1980 and 4% in 2013. It is worth noting that the hidden phosphorus flow in China was more than 500 kt-P, more than 10 times the amount of phosphate rock exported by China in 2013 (BACI, 2013;Webeck, 2014a).…”

Section: Estimationmentioning

confidence: 99%

Innovations in steelmaking technology and hidden phosphorus flows

Matsubae

Yamasue

Inazumi³

et al. 2016

Science of The Total Environment

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This article will outline the historical transition in the flow of phosphorus in steelmaking technology, and examine the current and future phosphorus flow in steel production and the peripheral steelmaking processes. History provides many instances of innovative changes in steelmaking processes driven by various issues associated with raw materials which emerged over time, such as supply, quality and cost issues. The major steel countries with a long history, including Sweden and Japan, have shown flexibility in their ability to adapt to the changes in the value of resources and geopolitical conditions over times, and have enacted survival resource utilization measures over many centuries, leading to improvements in their respective steelmaking processes. Considering these success stories, it stands to reason that the ideal state of steelmaking is one with a clear stance with regard to resource policy.

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Analysis of Phosphorus Dependency in Asia

Cited by 16 publications

References 18 publications

Marker assisted improvement of low soil phosphorus tolerance in the bacterial blight resistant, fine-grain type rice variety, Improved Samba Mahsuri

Marker assisted improvement of low soil phosphorus tolerance in the bacterial blight resistant, fine-grain type rice variety, Improved Samba Mahsuri

The Effect of Religious Dietary Cultures on Food Nitrogen and Phosphorus Footprints: A Case Study of India

Innovations in steelmaking technology and hidden phosphorus flows

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