Effects of nitrogen fertilizer and water management practices on nitrogen leaching from a typical open field used for vegetable planting in northern China

Wang, Dongyan; Guo, Liping; Zheng, Lei; Zhang, Yigong; Yang, Rongquan; Li, Ming; Ma, Fen; Zhang, Xinyue; Li, Yingchun

doi:10.1016/j.agwat.2018.12.015

Cited by 58 publications

(18 citation statements)

References 42 publications

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“…Lettuce reached the highest NUE under EENF treatments (CU in 2017 and CUNI in 2018–2020), and a significant increase of 9.1–14.1% and 7.7–8.4% in NUE was found for CU and CUNI relative to FP, respectively ( Table 1 ). Numerous studies observed a similar significant enhancement in NUE (by 6.1–14.9%) when adopting EENFs at a reduced N application rate (by 20–33%) in Chinese open-field leafy vegetable systems compared to conventional N management [ 41 , 42 , 43 ]. This is expected considering the great effectiveness of EENFs in mitigating reactive N losses in vegetable fields [ 44 , 45 ].…”

Section: Resultsmentioning

confidence: 89%

Enhanced-Efficiency Fertilizers Impact on Nitrogen Use Efficiency and Nitrous Oxide Emissions from an Open-Field Vegetable System in North China

Fan

Jiang

et al. 2022

Plants

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Open vegetable fields in China are a major anthropogenic source of nitrous oxide (N2O) emissions due to excessive nitrogen (N) fertilization. A 4 yr lettuce experiment was conducted to determine the impacts of controlled-release fertilizers (CRFs) and nitrification inhibitors (NIs) on lettuce yield, N2O emissions and net economic benefits. Five treatments included (i) no N fertilizer (CK), (ii) conventional urea at 255 kg N ha–1 based on farmers’ practice (FP), (iii) conventional urea at 204 kg N ha–1 (OPT), (iv) CRF at 204 kg N ha–1 (CU) and (v) CRF (204 kg N ha–1) added with NI (CUNI). No significant differences were found in the lettuce yields among different N fertilization treatments. Compared with FP, the cumulative N2O emissions were significantly decreased by 8.1%, 38.0% and 42.6% under OPT, CU and CUNI, respectively. Meanwhile, the net benefits of OPT, CU and CUNI were improved by USD 281, USD 871 and USD 1024 ha–1 compared to CN, respectively. This study recommends the combined application of CRF and NI at a reduced N rate as the optimal N fertilizer management for the sustainable production of vegetables in China with the lowest environmental risks and the greatest economic benefits.

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Section: Resultsmentioning

confidence: 89%

Enhanced-Efficiency Fertilizers Impact on Nitrogen Use Efficiency and Nitrous Oxide Emissions from an Open-Field Vegetable System in North China

Fan

Jiang

et al. 2022

Plants

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“…In many agricultural regions, high N additions can increase plant growth and the activity of soil microorganisms, but a significant fraction is often lost to leaching and other deleterious loss pathways. As a result, the excess N from intensive agriculture can lead to widespread decline in water quality (Ren et al, 2014; Song et al, 2009; Wang et al, 2019). The use of a continuous, permanent plant cover or mulch may reduce the potential loss of C and N by decreasing water erosion and N loss in sediment (Pacheco & Sanches‐Fernandes, 2016).…”

Section: Discussionmentioning

confidence: 99%

Land use conversion to agriculture impacts biodiversity, erosion control, and key soil properties in an Andean watershed

et al. 2022

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The conversion of natural vegetation to agricultural land uses in mountainous Andean landscapes threatens an array of key ecological processes and ecosystem services (ES). In protected areas and buffer regions that provide water to cities, it is critical to understand how interactions between plants and soil communities sustain a range of ecosystem functions associated with nutrient recycling, soil structure, and erosion control. We sought to examine how land use conversion within a mountainous tropical forest landscape influences the diversity of vegetation and soil macrofauna communities, soil physicochemical properties, and hydrological regulation services. Biodiversity and a suite of key soil-based ES were compared in five major land uses of the Cali River watershed: (1) annual cropping systems, (2) coffee plantations, (3) pastures, (4) abandoned shrubland, and (5) secondary forests. The diversity of woody and herbaceous vegetation, as well as soil macrofauna, was assessed in each land use. Soil chemical fertility and aggregate morphology were assessed via laboratory analyses and visual separation of soil aggregates based on their origin. Infiltration, runoff, and sediment production were measured using a portable rainfall simulator. We found a decrease in the diversity of woody vegetation across land uses to be associated with lower diversity of soil macrofauna. At the same time, agricultural management, annual crops in particular, supports the largest earthworm populations, likely due to increased organic inputs and low impact tillage, which appears not to diminish soil fertility and water infiltration. In contrast, the low soil fertility in pastures was associated with the lowest values of soil C, poor aggregation, and high bulk density and likely reflects overgrazing, with negative implications for water infiltration and erosion. Associations between the different sets of variables, evaluated with coinertia analysis, highlight the hierarchical relevance of plant cover and woody diversity on ES. The biological complexity associated with intact forest cover appears to generate "bundles" of co-occurring ES, with this land use

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“…Wang, Guo, et al. (2019) further reported in a cucumber–Chinese cabbage ( Brassica rapa ) rotation system in North China that decreasing the N rate by 20% did not affect cucumber yield compared to that under traditional management conditions with a seasonal N application of 780 kg ha −1 . Sun et al.…”

Section: Discussionmentioning

confidence: 99%

Cucumber production and the economic revenues under various nitrogen applications in an unheated solar greenhouse on the North China Plain

Liu

Yuan

et al. 2021

Agronomy Journal

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The over‐application of cucumber (Cucumis sativus L.) with nitrogen (N) fertilizers grown in greenhouses can produce adverse environmental consequences. In this study, a five‐season experiment was conducted from 2014 to 2018 to determine the influence of N rate on N use and economic returns. The experiment contained traditional N application under furrow irrigation (CK) and three N rates with drip irrigation, they are 100, 75, and 50% N applied in the check, referring to T100, T75, and T50, respectively. However, the irrigation rates in drip irrigation were approximately 40% lower than the check. The N losses from gas emission and leaching nitrate accounted for approximately 70% of the applied N when the traditional N rate was applied (CK and T100); however, the loss reduced to 12% in the T50 treatment. The highest cucumber production was found in the T100 treatment, which was 6.1 and 9.4% higher than the T75 and T50 treatments, respectively. The highest net revenue was found in the T100 treatment, followed by the CK (–5.8%), T75 (–7.6%), and T50 (–9.4%) treatments. The highest N productivity and economically applied N productivity were found in the T50 treatment, which were approximately 60% higher than those in the T100 and CK treatments. Fully considering the economic benefit, N productivity and environmental protection, the local N application for cucumber cultivation in greenhouses on the North China Plain (NCP) can be reduced by 50% with drip irrigation system.

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Effects of nitrogen fertilizer and water management practices on nitrogen leaching from a typical open field used for vegetable planting in northern China

Cited by 58 publications

References 42 publications

Enhanced-Efficiency Fertilizers Impact on Nitrogen Use Efficiency and Nitrous Oxide Emissions from an Open-Field Vegetable System in North China

Enhanced-Efficiency Fertilizers Impact on Nitrogen Use Efficiency and Nitrous Oxide Emissions from an Open-Field Vegetable System in North China

Land use conversion to agriculture impacts biodiversity, erosion control, and key soil properties in an Andean watershed

Cucumber production and the economic revenues under various nitrogen applications in an unheated solar greenhouse on the North China Plain

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