Strategies to mitigate nitrate leaching in vegetable production in China: a meta-analysis

Bai, Xinlu; Zhang, Zhaobei; Cui, Jiaojiao; Liu, Zhanjun; Chen, Zhujun; Zhou, Jianbin

doi:10.1007/s11356-020-08322-1

Cited by 23 publications

(8 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For example, intensive vegetable production systems in some places reported with only a maximum of 40% of the N use efficiency (NUE) [2]. In addition to increase in cost of production, these inefficient use of organic N and P fertilizers lead to soil degradation and contamination of hydrosphere and atmosphere environments [3,4]. In particular, rapid accumulation of nitrate, phosphorus, and salinity in soils were found under intensive vegetable production systems in southern China, as results of high amount of fertilizer application [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

“…However, there have been relatively less evidences on the effect of biochar incorporation on the leaching N and P losses from vegetable soils. Well known, leaching is one of the main N and P losses pathway in vegetable production, which can be controlled by different mitigation practices such as improved fertilizer management, reduced water management, and catch crops [2,3,6]. Yang et al [17] recently reported that the positive effects of different biochar amendments on leachate characterization of an agricultural soil.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Biochar can Increase Chinese Cabbage (Brassica oleracea L.) Yield, Decrease Nitrogen and Phosphorus Leaching Losses in Intensive Vegetable Soil

Sun¹,

Jeyakumar²,

Xiao³

et al. 2022

Phyton

View full text Add to dashboard Cite

There are few evidences on the effect of biochar on vegetable yield, nitrogen (N) and phosphorus (P) leaching losses under intensive vegetable production soil. The current field plot scale study evaluated responses of Chinese cabbage (Brassica oleracea L.) yield, N and P leaching losses using five N treatments of common N application rate according to local farmers' practice (N100%), reducing 20% or 40% N fertilizer (N80% and N60%), and reducing 40% N fertilizer but incorporating 10 or 20 t/ha biochar (N60% + BC10 and N60% + BC20). Results showed that N80% and N60% decreased both the cabbage economic and leaf yields by 6.8%-36.3% and 27.4%-37.7%, respectively. Incorporation of biochar with reduced N fertilizer rates improved the cabbage yield, in particular the N60% + BC20 matched the yield that observed in N100% treatment. Enhanced N and P uptake capacities of cabbage shoot probably contributed the higher vegetable production under both biochar amendment schemes. Biochar application mitigated the NH 4 + -N and total P leaching losses by 20%-30% and 29%-32%, respectively, compared with their counterpart treatment N60%. Nevertheless, biochar exerted no influence on the NO 3 --N leaching. In addition, soil organic matter content was recorded with 7.4%-28.7% higher following 10-20 t/ha biochar application. In conclusion, biochar application can increase economic yield of cabbage via increasing N and P use efficiency, decrease N and P leaching losses, and improve soil quality in an intensive vegetable production system.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biochar can Increase Chinese Cabbage (Brassica oleracea L.) Yield, Decrease Nitrogen and Phosphorus Leaching Losses in Intensive Vegetable Soil

Sun¹,

Jeyakumar²,

Xiao³

et al. 2022

Phyton

View full text Add to dashboard Cite

show abstract

“…In Guangdong Province, South China, the application of chemical fertilizer on farmland is 1.39 times higher than that at the national level [ 6 ]. Notably, vegetable production is often characterized by intensive cropping rotations, farmers usually apply an excessive phosphorus fertilizers to sustain the yields due to the complex P dynamics and poor P uptake capability of vegetables [ 7 – 10 ]. Currently, however, there is insufficient detailed information on soil P status, particularly with respect to the intensively managed vegetable cropping systems in Guangdong Province.…”

Section: Introductionmentioning

confidence: 99%

Phosphorus status and adsorption characteristics of perennial vegetable-cultivated soils in South China

et al. 2022

View full text Add to dashboard Cite

Phosphorus (P) is an essential element for crop production and a key source of nonpoint pollution in agroecosystems. In this study, we sought to analyze P levels and the factors affecting soil P availability, via P adsorption, in a typical field system that is characterized by the year-round cultivation of vegetables. A total of 190 sites were sampled from vegetable fields in Guangdong Province, South China. Within the research area, average concentrations of 124.49 mg P kg-1 and 1.55 g P kg-1 were recorded for available P (AP) and total P (TP), respectively, which are 8.53- and 1.78-fold higher, respectively, than the corresponding values recorded in 1980. The determined P adsorption maximum (Qm) averaged at 488.38 mg kg-1, which represents a reduction of 16% compared to the values obtained four decades ago. Accumulations of both TP and AP were found to be negatively correlated with the soil’s maximum adsorption buffering capacity (MBC), although no significant correlations with the soil binding energies (k) and Qm, were seen. However, soil pH was found to be significantly correlated with k and Qm. Furthermore, both free Mn oxides (Mnd) and silt concentrations in the soil were found to contribute to explaining the variations in Qm. Collectively, the findings of this study provide evidence to indicate that there has been an excessive accumulation of P in the perennial vegetable fields of Guangdong Province over the past four decades, which may have had negative effects on the P supply potential of the soil by reducing the maximum adsorption buffering capacity.

show abstract

“…In 2018, the total greenhouse growing area of tomatoes was 642,000 hm 2 , accounting for 57.88% of the total tomato planting area (Ministry of Agriculture and Rural Affairs of China). A high multiple cropping index and the use of a large amount of fertilizer are common characteristics of tomato production systems in greenhouses; these practices cause a large accumulation of nutrients and the loss of soil nitrogen ( Zhu et al, 2005 ; Fan et al, 2014 ; Bai et al, 2020 ). In addition, environmental factors such as high temperature, high humidity, semi-closed buildings, and no rainwater leaching into the greenhouse often lead to the formation of a unique soil acidification patterns during the production of greenhouse tomatoes ( Han et al, 2014 ; Ju et al, 2007 ; Min et al, 2011 ; Zhou et al, 2010 ).…”

Section: Introductionmentioning

confidence: 99%

Effects of artificially-simulated acidification on potential soil nitrification activity and ammonia oxidizing microbial communities in greenhouse conditions

Zhang¹,

Shan²,

Fu³

et al. 2022

PeerJ

View full text Add to dashboard Cite

Background Nitrification can lead to large quantities of nitrate leaching into the soil during vegetable production, which may result in soil acidification in a greenhouse system. A better understanding is needed of the nitrification process and its microbial mechanisms in soil acidification. Materials and Methods A simulated acidification experiment with an artificially manipulated pH environment (T1: pH 7.0; T2: pH 6.5; T3: pH 6.0; T4: pH 5.5; T5: pH 4.5) was conducted in potted tomatoes grown in greenhouse conditions. The abundance and community structures of ammonia oxidizers under different pH environment were analyzed using q-PCR and high-throughput sequencing methods, respectively. Results and discussions Soil acidification was accompanied by a reduction of soil organic matter (SOM), total nitrogen (TN), NH3 concentration, and enzyme activities. The abundance of ammonia-oxidizing archaea (AOA) in the soil was higher than that of ammonia-oxidizing bacteria (AOB) in soils with a pH of 6.93 to 5.33. The opposite trend was observed when soil pH was 4.21. In acidified soils, the dominant strain of AOB was Nitrosospira, while the dominant strain of AOA was Nitrososphaera. The abundance and community structure of ammonia oxidizers were mainly affected by soil pH, NH4+ content, and microbial biomass. Soil nitrification activity (PNA) has a relationship with both AOA and AOB, in which the abundance of AOA was the crucial factor affecting PNA. Conclusions PNA was co-dominated by AOA and AOB in soils with simulated acidification. Changes of soil pH, NH4+, and microbial biomass caused by acidification were the main factors for the differences in the ammonia-oxidizing microbial community in greenhouse soils. Under acidic conditions (pH < 5), the pH significantly inhibited nitrification and had a strong negative effect on the production of tomatoes in greenhouse conditions.

show abstract

Strategies to mitigate nitrate leaching in vegetable production in China: a meta-analysis

Cited by 23 publications

References 48 publications

Biochar can Increase Chinese Cabbage (Brassica oleracea L.) Yield, Decrease Nitrogen and Phosphorus Leaching Losses in Intensive Vegetable Soil

Biochar can Increase Chinese Cabbage (Brassica oleracea L.) Yield, Decrease Nitrogen and Phosphorus Leaching Losses in Intensive Vegetable Soil

Phosphorus status and adsorption characteristics of perennial vegetable-cultivated soils in South China

Effects of artificially-simulated acidification on potential soil nitrification activity and ammonia oxidizing microbial communities in greenhouse conditions

Contact Info

Product

Resources

About