Changes in soil physical and chemical characteristics in intensively cultivated greenhouse vegetable fields in North China

Li, Jiangang; Wan, Xin; Liu, Xiaoxiao; Chen, Yong; Slaughter, Lindsey C.; Weindorf, David C.; Dong, Yuanhua

doi:10.1016/j.still.2019.104366

Cited by 61 publications

(27 citation statements)

References 31 publications

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“…With a decline in soil available N, LN will decrease. Notably, nutrient concentrations are not only relevant to microbial communities, but are also related to bulk density when they are presented as nutrient pools (concentration times bulk density) [58][59][60]. In this case, soil bulk density might change the relationship between soil nutrients and leaf stoichiometry, because it varies widely with elevation in the study area [61,62], but this needs further exploration.…”

Section: Effects Of Soil Ph and Soc:stn On Leaf Stoichiometry Of P Crassifoliamentioning

confidence: 99%

Elevation Alone Alters Leaf N and Leaf C to N Ratio of Picea crassifolia Kom. in China’s Qilian Mountains

Niu

Kang

et al. 2021

Forests

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Leaf stoichiometry of plants can respond to variation in environments such as elevation ranging from low to high and success in establishing itself in a given montane ecosystem. An evaluation of the leaf stoichiometry of Qinghai Spruce (Picea crassifolia Kom.) growing at different elevations (2400 m, 2600 m, 2800 m, 3000 m, and 3200 m) in eastern China’s Qilian Mountains, showed that leaf carbon (LC) and leaf phosphorus (LP) were similar among elevations, with ranges of 502.76–518.02 g·kg−1, and 1.00–1.43 g·kg−1, respectively. Leaf nitrogen (LN) varied with changes of elevation, with a maxima of 12.82 g·kg−1 at 2600 m and a minima of 10.74 g·kg−1 at 2800 m. The LC:LN under 2400 m and 2600 m was lower than that under other elevations, while LC:LP and LN:LP were not different among these elevations. Except for LN and LC:LN, P. crassifolia’s other leaf stoichiometries remained relatively stable across elevations, partly supporting the homeostasis hypothesis. Variations in leaf stoichiometry across elevations were mainly linked to mean annual precipitation, mean annual temperature, soil pH, and the soil organic C to soil total N ratio. P. crassifolia growth within the study area was more susceptible to P limitation.

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Section: Effects Of Soil Ph and Soc:stn On Leaf Stoichiometry Of P Crassifoliamentioning

confidence: 99%

Elevation Alone Alters Leaf N and Leaf C to N Ratio of Picea crassifolia Kom. in China’s Qilian Mountains

Niu

Kang

et al. 2021

Forests

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“…These excess inputs in fertilizer and water have led to marked deteriorations in soil and groundwater quality (Jiang et al 2012). Moreover, the continuous cropping of perennial crops has been shown to cause serious acidification and a decreased pH in soil, followed by leaching of various cations and decreased utilization efficiency of mineral nutrients (Li et al 2019;Fan et al 2010). Therefore, different strategies for better crop production and better cultivation conditions have been employed in recent years.…”

Section: Introductionmentioning

confidence: 99%

Irrigation with Magnetized Water Affects the Soil Microenvironment and Fruit Quality of Eggplants in a Covered Vegetable Production System in Shouguang City, China

Cui

Liu

Jing

et al. 2020

J Soil Sci Plant Nutr

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The present study aimed to explore the mechanisms and soil properties of eggplant production and quality, as well as the bacterial community structure, soil physico-chemical properties, eggplant growth properties, and nutrient contents. A field experiment was performed in a seasonal crop of eggplants irrigated with magnetized water (MW) and nonmagnetized water (NMW). A magnetic field was used for water treatment in the MW groups. The soil nutrient contents as well as soil enzyme activities were significantly increased in the MW treatment compared with those in the NMW treatment. After irrigation with MW, the abundance of Proteobacteria in the soil significantly increased, while that of Firmicutes decreased in comparison with the NMW treatment. The bacterial diversity indexes operational taxonomic unit (OTU), Chao1 and ACE revealed increases of 3~24%. Additionally, the MW treatment increased the length, width, and fresh weight of the eggplant leaves by 17~29%, while the fruit length and width and the single fruit weight increased by 5~16%. The contents of vitamin C and organic acids in eggplant fruit in the MW treatment markedly increased by 25~34% compared with those in the NMW treatment. Likewise, the contents of mineral elements in the treated eggplants exhibited marked increases compared with the levels in the NMW treatment. Irrigation with MW had the potential to improve soil quality and change the community structure of the bacteria. Moreover, irrigation with MW could improve eggplant growth and output, hence promoting fruit quality. These results could provide a theoretical basis for the application of magnetics for improving crop production.

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“…Furthermore, conventional agricultural practices cause the acidification of soils. The literature has indicated that the extremely long use and heavy application of N fertilizer reduce soil pH [ 66 , 67 ]. As observed in our study, lower pH values were detected in F2 soils, indicating the influence of long-term intensive agriculture on the soils’ pH.…”

Section: Discussionmentioning

confidence: 99%

Metagenomic Analyses of Plant Growth-Promoting and Carbon-Cycling Genes in Maize Rhizosphere Soils with Distinct Land-Use and Management Histories

Chukwuneme

Babalola

2021

Genes

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Many studies have shown that the maize rhizosphere comprises several plant growth-promoting microbes, but there is little or no study on the effects of land-use and management histories on microbial functional gene diversity in the maize rhizosphere soils in Africa. Analyzing microbial genes in the rhizosphere of plants, especially those associated with plant growth promotion and carbon cycling, is important for improving soil fertility and crop productivity. Here, we provide a comparative analysis of microbial genes present in the rhizosphere samples of two maize fields with different agricultural histories using shotgun metagenomics. Genes involved in the nutrient mobilization, including nifA, fixJ, norB, pstA, kefA and B, and ktrB were significantly more abundant (α = 0.05) in former grassland (F1) rhizosphere soils. Among the carbon-cycling genes, the abundance of 12 genes, including all those involved in the degradation of methane were more significant (α = 0.05) in the F1 soils, whereas only five genes were significantly more abundant in the F2 soils. α-diversity indices were different across the samples and significant differences were observed in the β diversity of plant growth-promoting and carbon-cycling genes between the fields (ANOSIM, p = 0.01 and R = 0.52). Nitrate-nitrogen (N-NO3) was the most influential physicochemical parameter (p = 0.05 and contribution = 31.3%) that affected the distribution of the functional genes across the samples. The results indicate that land-use and management histories impact the composition and diversity of plant growth-promoting and carbon-cycling genes in the plant rhizosphere. The study widens our understanding of the effects of anthropogenic activities on plant health and major biogeochemical processes in soils.

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Changes in soil physical and chemical characteristics in intensively cultivated greenhouse vegetable fields in North China

Cited by 61 publications

References 31 publications

Elevation Alone Alters Leaf N and Leaf C to N Ratio of Picea crassifolia Kom. in China’s Qilian Mountains

Elevation Alone Alters Leaf N and Leaf C to N Ratio of Picea crassifolia Kom. in China’s Qilian Mountains

Irrigation with Magnetized Water Affects the Soil Microenvironment and Fruit Quality of Eggplants in a Covered Vegetable Production System in Shouguang City, China

Metagenomic Analyses of Plant Growth-Promoting and Carbon-Cycling Genes in Maize Rhizosphere Soils with Distinct Land-Use and Management Histories

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