Nitrate accumulation in the soil profile is the main fate of surplus nitrogen after land-use change from cereal cultivation to apple orchards on the Loess Plateau

Zhu, Xueqiang; Fu, Wenhao; Kong, Xiangjun; Chen, Cuixia; Chen, Zhujun; Zhou, Jianbin

doi:10.1016/j.agee.2021.107574

Cited by 40 publications

(5 citation statements)

References 48 publications

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“…Furthermore, a nitrogen surplus significantly contributes to nitrate accumulation in soil profiles [58][59][60]. This was supported by the high soil NH 4 + -N and NO 3 − -N residues (Figure 1).…”

Section: The Effects Of Reducing Nitrogen Combined With Biochar Appli...mentioning

confidence: 77%

Impact of Reducing Nitrogen Fertilizer with Biochar on Flavor Substance and Nitrogen Balance in Different Swollen-Stem-Mustard Varieties

Zhang,

Wang,

Tang

et al. 2024

Agronomy

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Excessive application of nitrogen fertilizer in the swollen-stem mustard cultivation leads to a series of environmental and quality issues. It was reported that reducing nitrogen fertilizer with biochar could increase crop yield and reduce environmental risks. However, the effect of nitrogen reduction combined with biochar application on the flavor substances was rarely reported. Thus, two genetic stem mustard varieties (Yx: Yong’an xiaoye and Fz: Fuza No. 2), and four N treatments (control: 0 N kg/ha with biochar; N150: 150 N kg/ha with biochar, N300: 300 N kg/ha with biochar, and N450: 450 N kg/ha) were chosen to study the effects of nitrogen reduction combined with biochar on the flavor substance content of mustard stem, and N balance. The results showed that the residual soil inorganic N in N300 was lower by 37% than that in N450 (156.5 kg/ha) in Fz mustard soil, and lower by 33% in N150 than in N450 (163.1 kg/ha) in Yx mustard. The highest biomass of stem mustard tumors of Fz (35.4 × 103 kg/ha) and Yx (35.7 × 103 kg/ha) was in N300. The content of umami amino acids, sweet amino acids, and bitter amino acids of Yx and Fz stem was the highest in N450, and N300, respectively. After comprehensive consideration, the Fz was recommended to be planted in the Three Gorges Reservoir Area with N300.

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Section: The Effects Of Reducing Nitrogen Combined With Biochar Appli...mentioning

confidence: 77%

Impact of Reducing Nitrogen Fertilizer with Biochar on Flavor Substance and Nitrogen Balance in Different Swollen-Stem-Mustard Varieties

Zhang,

Wang,

Tang

et al. 2024

Agronomy

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“…Accordingly, all levels of government encourage the cultivation of cash tree crops. Apple trees do not require a large amount of water and are therefore widely planted to improve the income of smallholder farmers (Liu et al, 2019; Suo et al, 2016; Zhu et al, 2021). In particular, Luochuan apple is a popular variety (Zhang et al, 2019) that grows well in Luochuan County (Shaanxi Province), characterised by abundant sunshine, high diurnal temperature variation, deep high‐porosity soils and flat terrain (Hou et al, 2021; Song et al, 2017; Zhang et al, 2021).…”

Section: Resultsmentioning

confidence: 99%

Spatiotemporal evolution and suitability of apple production in China from climate change and land use transfer perspectives

Wang¹,

Liu²

2022

Food and Energy Security

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Apple production in China, the world's largest apple producer and consumer, is challenged by a huge and growing population coupled with rapid industrialisation and urbanisation. China's apple output has increased continuously over the past 42 years with distinctive spatial differences. Herein, changes in the spatial patterns of apple production increases, and their potential impact factors in China are described at the provincial level. Between 1978 and 2019, the centreof-gravity of apple production shifted southwest towards the upper reaches of the Yellow River, the main water source for agricultural irrigation in North China.Analysis of absolute and relative growth of apple output reveals that the Loess Plateau, characterised by fragile habitat and low land productivity, has gradually become a major contributor to apple production. Despite annual increases in apple output, apple production system has become more fragile and unstable overtime, especially in the Shaanxi-Gansu region where apple cultivation is prevalent. With continuous changes in policy, the amount of forest transfer (i.e. the area of other land use types converted to forest) has significantly affected the impact of standardised precipitation evapotranspiration index on apple production increases in China. Thus, to prevent the degradation of new forests, a differentiated management and protection system should be implemented for apple planting sub-regions. This should include altering subsidy policies on apple production, enhancing soil erosion control in the Loess Plateau and strengthening ecological management of forests and grassland. K E Y W O R D Sapple production increase, forest transfer, spatiotemporal evolution, standardised precipitation evapotranspiration index How to cite this article: Wang, J., & Liu, T. (2022). Spatiotemporal evolution and suitability of apple production in China from climate change and land use transfer perspectives. Food and Energy Security, 11, e386.

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“…The areas of OVF in China only account for 20% of the national planting area; however, they have consumed 32% of the annual mineral N fertilizers in China (~10 Tg•yr −1 N; Fig. 1(b)) [9] . The excessive application of N fertilizer in OVFs in China is particularly common [5,6,10] .…”

Section: Development and N Fertilization Of Orchards And Vegetable Fi...mentioning

confidence: 99%

Nitrogen Use and Management in Orchards and Vegetable Fields in China: Challenges and Solutions

2022

Front. Agr. Sci. Eng.

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HIGHLIGHTS• Excessive application of N fertilizers in orchards and vegetable fields (OVFs) in China is particularly common. • Long-term excessive application of N fertilizers has made OVFs hotspots for N surplus and loss in China. • Nitrate accumulation in the soil profile is the main fate of N fertilizers in OVF systems. • Reducing the N surplus is the most effective way to reduce N loss and increase NUE.

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Nitrate accumulation in the soil profile is the main fate of surplus nitrogen after land-use change from cereal cultivation to apple orchards on the Loess Plateau

Cited by 40 publications

References 48 publications

Impact of Reducing Nitrogen Fertilizer with Biochar on Flavor Substance and Nitrogen Balance in Different Swollen-Stem-Mustard Varieties

Impact of Reducing Nitrogen Fertilizer with Biochar on Flavor Substance and Nitrogen Balance in Different Swollen-Stem-Mustard Varieties

Spatiotemporal evolution and suitability of apple production in China from climate change and land use transfer perspectives

Nitrogen Use and Management in Orchards and Vegetable Fields in China: Challenges and Solutions

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