On-farm assessment of soil erosion and non-point source pollution in a rain-fed vegetable production system at Dianchi lake’s catchment, southwestern China

Zhang, G. S.; Li, J. C.; Hu, X.B.; Zhang, X. X.

doi:10.1007/s10705-013-9577-6

Cited by 9 publications

(3 citation statements)

References 16 publications

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“…[26] However, the annual N application rate was 600 kg ha −1 in the Dianchi Lake region or roughly one-third of that in this study. In addition, other factors such as rainfall and soil texture can also contribute to the difference.…”

Section: Tn Runoff Load In a Greenhouse Vegetable Systemmentioning

confidence: 52%

“…Ongley et al [9] pointed out that runoff quantity was the key variable in calculating nutrient loading. Previous studies of N runoff in vegetable fields have been mostly based on short-term observations of one crop season, [20][21][22] small plot experiments, [23][24][25][26] monolith lysimeters [27,28], or parameter models. [29,30] Quantifying both runoff volume and N concentration at a field scale could be more accurate in determining N losses.…”

Section: Introductionmentioning

confidence: 99%

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Nitrogen removal from the surface runoff of a field scale greenhouse vegetable production system

Jiang

Zhao

et al. 2015

Environmental Technology

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Nutrient losses from greenhouse vegetable production systems may impair water quality in the Taihu Lake Region of China. We studied the characteristics of nitrogen (N) lost via runoff from greenhouse vegetable systems and strategies for minimizing N entering water bodies. A two-year experiment at a field scale was conducted to monitor N surface runoff. An eco-ditch (148 m(2)) and a low N input paddy field (135 kg N ha⁻¹, 550 m²) were designed to remove N from the surface runoff of a 25 × 50 m greenhouse vegetable field. The greenhouse was not covered from late June to mid-October each year, and runoff occurred multiple times during this period. Annual total N loss in runoff from the greenhouse vegetable site was 25.3 and 33.5 kg ha⁻¹ in 2010 and 2011, respectively. Nitrate-N was the major form of N lost in the runoff. The average runoff volume was 289 mm (varied from 221 to 357 mm), which contained 15.7 (varied from 3.3 to 39.2 mg L⁻¹) mg L⁻¹ total N. The eco-ditch system and the wetland paddy field (WPF) effectively reduced total N discharge; the removal rates reached 49.9% and 58.7% and the average removal capacities were 12.4 g N m⁻² and 4.1 g N m⁻² in 2010 and 2011, respectively. The combined system of the ecological ditch-WPF removed almost 79% total N in the runoff. Ecological ditch or paddy wetland can be a water management option available to growers in this region to economically reduce pollutants in agricultural runoff.

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Section: Tn Runoff Load In a Greenhouse Vegetable Systemmentioning

confidence: 52%

Section: Introductionmentioning

confidence: 99%

Nitrogen removal from the surface runoff of a field scale greenhouse vegetable production system

Jiang

Zhao

et al. 2015

Environmental Technology

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“…Its widespread adoption is often credited to effective in-row weed control and microclimate changes that improve crop quality and yield (Tarara, 2000;Kasirajan and Ngouajio, 2012;Wilhoit and Coolong, 2013). However, when roughly 50-75% of a field is covered with impermeable plastic, sediment loss, agrochemical runoff, and nutrient leaching during rain events can be greatly intensified between plastic mulched beds; especially when cultivation and herbicides used for weed control between beds leave the soil bare and highly susceptible to erosion (Wan and El-Swaify, 1999;Arnold et al, 2004;Rice et al, 2004;Zhang et al, 2013). As a result, yield gains in plasticulture production may be offset by associated environmental and soil degradation (Steinmetz et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Weed control, soil health, and yield tradeoffs of between-bed management strategies in organic plasticulture vegetable production

Tarrant,

Brainard,

Tiemann

et al. 2024

Front. Sustain. Food Syst.

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Planting a cover crop living mulch between plastic mulch beds in fresh market vegetable production can reduce soil erosion and runoff, and offers an opportunity to grow an income generating cash crop alongside a soil building cover crop. However, potential negative impacts on yield, variable weed control, unclear impacts on soil health, and limited management recommendations challenge adoption of this practice, despite grower interest. In a two-year study in southwest Michigan, living mulches were evaluated in the production of plasticulture organic summer squash (Cucurbita pepo cv. Lioness) and bell pepper (Capsicum annuum cv. Paladin). Strategies evaluated included three common grower practices (cultivation, dead straw mulch, mowing ambient weeds) and three mowed living mulch treatments (Italian ryegrass [Lolium multiflorum] monoculture, rye [Secale cereale] monoculture, and a Dutch white clover [Trifolium repens]/rye mixture). We determined the impact of these strategies on weed control, organic matter inputs, vegetable crop performance, nitrogen retention, and soil microbial communities. We found that cultivation and dead mulch provided superior in-season weed control, reducing weed biomass by an average of 86% compared to 18% among living mulch treatments, with associated reductions in the weed seedbank compared to living mulches and mowed weeds. In most cases, living mulch establishment was a challenge and weed biomass on average accounted for 99, 74, and 94% of organic matter inputs in rye, ryegrass, and clover/rye treatments, respectively. Squash performance was unaffected by our treatments, but pepper yield reductions ranged from 41 to 54% in all treatments relative to cultivation in one of two years. Living mulches and the weedy treatment showed the ability to reduce end-of-season potentially leachable nitrogen by 61% compared to cultivation and dead mulching. Soil microbial abundance and functional diversity were similar across treatments, but extracellular enzyme activity was higher in dead mulch, living mulch and weedy treatments compared to cultivation. Results from this study help quantify tradeoffs between common grower practices for managing weeds and soil between plastic mulch beds, highlight key challenges with living mulch alternatives, and identify areas for future research.

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The fate of urea nitrogen applied to a vegetable crop rotation system

Ding

Zhang

et al. 2015

Nutr Cycl Agroecosyst

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On-farm assessment of soil erosion and non-point source pollution in a rain-fed vegetable production system at Dianchi lake’s catchment, southwestern China

Cited by 9 publications

References 16 publications

Nitrogen removal from the surface runoff of a field scale greenhouse vegetable production system

Nitrogen removal from the surface runoff of a field scale greenhouse vegetable production system

Weed control, soil health, and yield tradeoffs of between-bed management strategies in organic plasticulture vegetable production

The fate of urea nitrogen applied to a vegetable crop rotation system

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