Measurements of N2O emissions from different vegetable fields on the North China Plain

Diao, Tiantian; Xie, Li Yang; Guo, Liping; Yan, Hongliang; Ma, Lin; He, Zuyong; Lin, Jih‐Pai; Lin, Erda

doi:10.1016/j.atmosenv.2013.02.040

Cited by 45 publications

(23 citation statements)

References 19 publications

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“…This paper reports the results got from the second year of the experiment. Detailed descriptions about the history of fields, vegetable crop rotations and field management regimes were described by Diao et al (2013). The treatments of b1, b2, and b3 were assigned using a randomized block design with three replicates.…”

Section: Experimental Designmentioning

confidence: 99%

“…Sampled gases were stored in aluminum bags and carried to the laboratory to measure the content of N 2 O using a gas chromatograph (Agilent 7890A GC System, Agilent Technologies, USA) equipped with an electron capture detector. Detailed sampling and calculation equations for N 2 O emission fluxes have been described by Diao et al (2013) and Liu et al (2011). The cumulative N 2 O emissions were calculated using the individual fluxes and the time duration between two adjacent sampling periods.…”

Section: Sampling and Measurementsmentioning

confidence: 99%

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Characteristics of nitrous oxide emissions and the affecting factors from vegetable fields on the North China Plain

Yan¹,

Xie²,

Guo³

et al. 2014

Journal of Environmental Management

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Section: Experimental Designmentioning

confidence: 99%

Section: Sampling and Measurementsmentioning

confidence: 99%

Characteristics of nitrous oxide emissions and the affecting factors from vegetable fields on the North China Plain

Yan¹,

Xie²,

Guo³

et al. 2014

Journal of Environmental Management

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“…Intensified vegetable cultivation in China is characterized by high N application rates, high cropping index and frequent farm practices. Annual N fertilizer inputs for intensively managed vegetable cultivation are 3-6 times higher than in cereal grain cultivation in China (Ju et al, 2006;Diao et al, 2013;Wang et al, 2015a). As a result, great concern exists about excess N fertilizer application and low N use efficiency in intensive vegetable fields in China (Deng et al, 2013;Diao et al, 2013;Li et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Annual N fertilizer inputs for intensively managed vegetable cultivation are 3-6 times higher than in cereal grain cultivation in China (Ju et al, 2006;Diao et al, 2013;Wang et al, 2015a). As a result, great concern exists about excess N fertilizer application and low N use efficiency in intensive vegetable fields in China (Deng et al, 2013;Diao et al, 2013;Li et al, 2017). Meanwhile, intensive vegetable agriculture is considered to be an important source of N 2 O (Xiong et al, 2006;Jia et al, 2012;Li et al, 2015b;Zhang et al, 2015) and NO production ).…”

Section: Introductionmentioning

confidence: 99%

Biochar reduces yield-scaled emissions of reactive nitrogen gases from vegetable soils across China

Fan

Chen

et al. 2017

Biogeosciences

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Abstract. Biochar amendment to soil has been proposed as a strategy for sequestering carbon, mitigating climate change and enhancing crop productivity. However, few studies have compared the general effect of different feedstock-derived biochars on the various gaseous reactive nitrogen emissions (GNrEs) of N 2 O, NO and NH 3 simultaneously across the typical vegetable soils in China. A greenhouse pot experiment with five consecutive vegetable crops was conducted to investigate the effects of two contrasting biochars, namely wheat straw biochar (B w ) and swine manure biochar (B m ) on GNrEs, vegetable yield and gaseous reactive nitrogen intensity (GNrI) in four typical soils which are representative of the intensive vegetable cropping systems across mainland China: an Acrisol from Hunan Province, an Anthrosol from Shanxi Province, a Cambisol from Shandong Province and a Phaeozem from Heilongjiang Province. Results showed that remarkable GNrE mitigation induced by biochar occurred in Anthrosol and Phaeozem, whereas enhancement of yield occurred in Cambisol and Phaeozem. Additionally, both biochars decreased GNrI through reducing N 2 O and NO emissions by 36.4-59.1 and 37.0-49.5 % for B w (except for Cambisol), respectively, and by improving yield by 13.5-30.5 % for B m (except for Acrisol and Anthrosol). Biochar amendments generally stimulated the NH 3 emissions with greater enhancement from B m than B w . We can infer that the biochar's effects on the GNrEs and vegetable yield strongly depend on the attributes of the soil and biochar. Therefore, in order to achieve the maximum benefits under intensive greenhouse vegetable agriculture, both soil type and biochar characteristics should be seriously considered before conducting large-scale biochar applications.

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“…In vegetable farming systems, the application of OA is often associated with supplemental addition of N fertilizer due to uncertainty in accounting for the N that is released from these products over time (De Rosa et al, 2016). Significant N surplus can result from the tendency to underestimate the N contribution of OA to fertilizer rates, especially in vegetable cropping systems where high N inputs are often applied (>220 N kg ha -1 per season (Diao et al, 2013, Rezaei Rashti et al, 2015. The tendency of horticultural producers to overfertilize has been confirmed in a survey conducted by Chan et al (2007).…”

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confidence: 99%

Can Organic Amendments Support Sustainable Vegetable Production?

et al. 2017

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Application rates of synthetic fertilizer to agricultural fields can be reduced through better understanding of N supplied by organic amendments (OA). Field and simulation experiments were performed to quantify the effect of N released from OA application on crop production and selected soil properties in an intensively managed vegetable crop rotation. The SALUS crop model was used to simulate yield, soil N, and soil organic carbon (SOC) dynamics under different combinations of composted or raw OA and synthetic N fertilizer application rates. SALUS accurately simulated aboveground crop biomass production (r 2 = 0.91, RMSE = 1.7 t ha -1 ) and crop N uptake (r 2 = 0.96, RMSE = 15 kg N ha -1 ) under different N management strategies as well as SOC level (r 2 = 0.51, RMSE = 1 t C ha -1 ) and soil mineral N (r 2 = 0.58, RMSE = 56 kg N ha -1 ). No difference in crop biomass production was found with N fertilizer reductions up to 27% of the conventional N fertilizer rate when combined with OA application. A 12-yr scenario analysis using SALUS indicated that conventional N fertilizer can be further reduced by up to 50% while sustaining crop biomass production, thereby potentially reducing N losses to the environment. Data gathered from the field study and simulation scenarios highlighted the positive effect of composted OA to maintain soil C levels. This contrasts with average annual SOC losses of 3.7% observed in long-term simulation scenarios in systems with only N fertilizer or raw OA applications. Core Ideas• Accounting for the N release from organic amendments improves N use efficiency and promotes soil C storage in horticultural soils.• Regional N fertilizer recommendations are affected by a high degree of uncertainty. • Crop simulation model can help to develop efficient site-specific N management.

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Measurements of N2O emissions from different vegetable fields on the North China Plain

Cited by 45 publications

References 19 publications

Characteristics of nitrous oxide emissions and the affecting factors from vegetable fields on the North China Plain

Characteristics of nitrous oxide emissions and the affecting factors from vegetable fields on the North China Plain

Biochar reduces yield-scaled emissions of reactive nitrogen gases from vegetable soils across China

Can Organic Amendments Support Sustainable Vegetable Production?

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