Trends in the food nitrogen and phosphorus footprints for Asia's giants: China, India, and Japan

Oita, Azusa; Wirasenjaya, Farah; Liu, Jiarui; Webeck, Elizabeth; Matsubae, Kazuyo

doi:10.1016/j.resconrec.2020.104752

Cited by 51 publications

(37 citation statements)

References 61 publications

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“…This increase in the use of P fertilizer may also lead to losses of P to the environment. Augmenting P losses in surface waters adversely impacts ecosystems and biodiversity [6]. Most soils in North-West China are generally deficient in P. Thus, P fertilization is a common practice to ensure sufficient P supply, leading to extreme soil environmental problems, e.g., P leaching, soil hardening and acidification, and reduction of soil fertility [7].…”

Section: Introductionmentioning

confidence: 99%

Changes in Phosphorus Fractions and Its Availability Status in Relation to Long Term P Fertilization in Loess Plateau of China

Mahmood

Tian

et al. 2020

Agronomy

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Excessive phosphorus (P) application can alter soil P availability and limit plant growth by compacting soil and fixation of P into different organic and inorganic forms. However, it remains uncertain whether these changes happen after limited fertilization or an excessive rate applied under the winter wheat cropping system. The current study aimed to identify the transformation of P into different organic (Po) and inorganic (Pi) fractions, and their role in the plant P uptake and winter wheat (Triticum aestivum L.) production. A long-term study (12 years) was conducted to assess the changes in soil Pi and Po fractions in response to different P rates (0, 50, 100, 150, and 200 kg P2O5 ha−1) applied to winter wheat. Phosphorus fractions were determined using the Hedley modified Tiessen and Moir fractionation scheme. Our findings demonstrated that different P rates significantly increased the available P, particularly NaHCO3-Pi, in the inorganic P fractions compared to P0 treatment. NaHCO3-Pi showed a strong relationship with grain yield (R2 = 0.91) and P uptake (R2 = 0.80). Grain yield was significantly higher in the P100 treatment, but no significant difference was observed between P100 and P200 treatments. The P200 treatment had a maximum grain P content and plant P uptake. Compared with the P0 treatment, all organic fractions yielded the highest Po with the P rate increase, ranging from 27.3 to 75.6 mg kg−1, 27.2 to 35.6 mg kg−1, and 58.8 to 124 mg kg−1 for NaHCO3-Po, NaOH-Po, and HCl-Po, respectively. Among all Pi fractions, the maximum fraction, known as apatite (HClD-Pi), was found in the P200 treatment with the range of 165 to 245.9 mg kg−1. HClD-Pi accounted for 32% of total P, which can be transformed into the available P form with the passage of time. An increase of 78% in residual P was found under the treatment of P200. The residual P fraction was positively correlated with grain yield, P uptake, and other inorganic fractions. It can be concluded that application of P increases P availability and grain yield with an increase in its application rate, but too much use of P can cause soil pollution and higher fixation of P. Consequently, a balanced application of fertilizer is recommended to reduce its fixation and increase its availability for higher crop yield.

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Section: Introductionmentioning

confidence: 99%

Changes in Phosphorus Fractions and Its Availability Status in Relation to Long Term P Fertilization in Loess Plateau of China

Mahmood

Tian

et al. 2020

Agronomy

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“…[ 183,184,204,205] N loss: nitrogen losses to the environment from agriculture (croplands and animal manure management).…”

Section: Environmental Concern Indicators and Definition Relevance And Comments Referencesmentioning

confidence: 99%

“…In some studies, it has been considered equal to P use. [205,207] Water use and/or scarcity and pollution…”

Section: Environmental Concern Indicators and Definition Relevance And Comments Referencesmentioning

confidence: 99%

Indicators and Recommendations for Assessing Sustainable Healthy Diets

Aldaya

Ibáñez

Domínguez-Lacueva

et al. 2021

Foods

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Research coupling human nutrition and sustainability concerns is a rapidly developing field, which is essential to guide governments’ policies. This critical and comprehensive review analyzes indicators and approaches to “sustainable healthy diets” published in the literature since this discipline’s emergence a few years ago, identifying robust gauges and highlighting the flaws of the most commonly used models. The reviewed studies largely focus on one or two domains such as greenhouse gas emissions or water use, while overlooking potential impact shifts to other sectors or resources. The present study covers a comprehensive set of indicators from the health, environmental and socio-economic viewpoints. This assessment concludes that in order to identify the best food option in sustainability assessments and nutrition analysis of diets, some aspects such as the classification and disaggregation of food groups, the impacts of the rates of local food consumption and seasonality, preservation methods, agrobiodiversity and organic food and different production systems, together with consequences for low-income countries, require further analysis and consideration.

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“…The United Nations has reported an increase in the use of both N and P as fertilizers [1]. N and P inputs as fertilizers used in the production of food are substantially higher than the N and P constituents of the food consumed [2]. Reactive N, expressed as Nr (N species apart from N gas), in air, soil and water are essential for the growth of living things [3,4].…”

Section: Introductionmentioning

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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Trends in the food nitrogen and phosphorus footprints for Asia's giants: China, India, and Japan

Cited by 51 publications

References 61 publications

Changes in Phosphorus Fractions and Its Availability Status in Relation to Long Term P Fertilization in Loess Plateau of China

Changes in Phosphorus Fractions and Its Availability Status in Relation to Long Term P Fertilization in Loess Plateau of China

Indicators and Recommendations for Assessing Sustainable Healthy Diets

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

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