Mitigation of ammonia volatilization on farm using an N stabilizer – A demonstration in Quzhou, North China Plain

Wang, Jingxia; Sha, Zhimin; Qu, Zhichen; Niu, Xinsheng; Xu, Wen; Zhang, Hongyan; Goulding, Keith; Liu, Xuejun

doi:10.1016/j.agee.2022.108011

Cited by 11 publications

(2 citation statements)

References 41 publications

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“…Moreover, these differences are noticeable in soils with varying pH levels. Furthermore, short-term experiments have indicated that the application of stabilized fertilizers leads to substantial improvements in crop yield, nitrogen fertilizer utilization efficiency, and a reduction in methane emissions [17][18][19][20]. Controlled-release fertilizers also referred to as coated fertilizers consist of granular fertilizers coated with polymer or resin materials.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Long-Term Application of Stabilized and Coated Urea on Soil Chemical Properties, Microbial Community Structure, and Functional Genes in Paddy Fields

Zhang,

Li,

Zhang

et al. 2023

Agronomy

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The addition of fertilizers is indispensable in agricultural production, and currently, there is a wide variety of new types of fertilizers available. For example, commonly used are stabilized fertilizers with inhibitors and coated slow-release fertilizers, among others. However, the long-term effects of these fertilizers, when applied continuously are still uncertain. This study will provide scientific and theoretical support for the development and promotion of these fertilizers. A 16-year paddy field with brown soil treated with different urease and nitrification inhibitors, sulfur-coated urea (SCU), and resin-coated urea (PCU) was studied. The study showed that long-term use of conventional urea nitrogen fertilizer resulted in a significant reduction in soil total phosphorus (TP). Long-term application of NBPT and conventional urea significantly increased soil organic matter (SOM). Moreover, except for HQ and NBPT+DMPP, the prolonged application of new urea fertilizers also significantly enhanced soil total potassium (TK). Application of SCU fertilizer in brown soil type paddy fields resulted in a significant decrease in soil pH over time. However, changes in pH had no effect on the abundance of ammonia-oxidizing bacteria (AOB), as AOB was mainly affected by soil-available N. DMPP, HQ+DCD, NBPT+DMPP, SCU, and PCU significantly reduced the 16S rRNA gene copy number of soil bacteria, with the greatest effect of coated urea fertilizer (SCU and PCU). Long-term application of stable urea fertilizer with HQ significantly reduced the bacterial community in paddy soil. Conversely, HQ+DCD-stabilizede urea fertilizer significantly increased the population structure and abundance of Basidiomycota fungi while decreasing the population structure and abundance of Rozellomycota fungi. DMPP-stabilized urea fertilizer notably increased the population structure and abundance of Ascomycota fungi while decreasing the population structure and abundance of Rozellomycota and Chytridiomycota fungi. Furthermore, HQ-stabilized urea fertilizer significantly reduced the population structure and abundance of Chytridiomycota fungi.

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Section: Introductionmentioning

confidence: 99%

The Effects of Long-Term Application of Stabilized and Coated Urea on Soil Chemical Properties, Microbial Community Structure, and Functional Genes in Paddy Fields

Zhang,

Li,

Zhang

et al. 2023

Agronomy

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“…As a first step, we calculated national scale N budgets for major crop systems in China for the years 1961, 1980, 2000 and 2018, this being an important tool to quantify the N surplus and the need for sustainable N management [22][23][24] . These years represent 4 typical periods (the early stage of the 'new' China, the beginning of reforming and opening-up, the realization of a moderately prosperous society, and the time of entering an initially developed society) in the development of agricultural production and N use in China.…”

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confidence: 99%

Minimizing N-related environmental harm associated with food security in China

Liu

Vries

Zhang

et al. 2022

Preprint

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Elevated inputs of nitrogen (N) fertilizer have played a key role in feeding an increasing global population, but also caused many environmental problems due to emissions of reactive N (Nr) to air and water worldwide, especially in China. To better understand the improvements to N management required to reduce impacts in China, we compiled a long-term N budget over the period 1961-2018, quantified historic changes in N inputs, crop uptakes and losses, and compared them with required N inputs to satisfy food security and critical N inputs to protect the environment in view of acceptable losses of ammonia to air and nitrate to water. Nitrogen inputs required to satisfy the food demand of China were 14, 21, 27 and 29 Tg N yr-1 in 1961, 1980, 2000 and 2018, respectively, while the actual N inputs were 4, 25, 39 and 48 Tg N yr-1, respectively, exceeding the required input after 1980. Since 2000, the actual N inputs also exceeded the critical N inputs in view of ammonia emissions to air (35 Tg N yr-1) and nitrate leaching to groundwater (28 Tg N yr-1) that are needed to protect biodiversity and human health. We show that a reduction in N input from 48 to 31 Tg N yr-1, which reconciles food production with environmental safety, can be achieved through the effective recycling of manure, balanced N fertilization and integrated soil-crop system management. Such a 'win-win' would improve air and water quality and protect the environment and human health through improved resource use efficiencies, reduced N fertilizer use and decreased Nr losses.

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Interaction of lime application and straw retention on ammonia emissions from a double-cropped rice field

Liao

Liu

Bell

et al. 2023

Agriculture, Ecosystems & Environment

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Mitigation of ammonia volatilization on farm using an N stabilizer – A demonstration in Quzhou, North China Plain

Cited by 11 publications

References 41 publications

The Effects of Long-Term Application of Stabilized and Coated Urea on Soil Chemical Properties, Microbial Community Structure, and Functional Genes in Paddy Fields

The Effects of Long-Term Application of Stabilized and Coated Urea on Soil Chemical Properties, Microbial Community Structure, and Functional Genes in Paddy Fields

Minimizing N-related environmental harm associated with food security in China

Interaction of lime application and straw retention on ammonia emissions from a double-cropped rice field

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