Phosphorus application improved the yield of citrus plants grown for three years in an acid soil in the Three Gorges Reservoir Area

Di, Li; Li, Xun; Han, Qingzhong; Zhou, Yuzhi; Dong, Jinlong; Duan, Zengqiang

doi:10.1016/j.scienta.2020.109596

Cited by 9 publications

(5 citation statements)

References 29 publications

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“…A fertilization system normally provides the quantities of pure N, P, and K, but fail to recommend specific types of fertilizers that can be used (Wang et al, 2015;Zeng et al, 2013;Li et al, 2020).…”

Section: Citrus Fertilization Management Based On Cfomentioning

confidence: 99%

An Ontology-Based Automation System

Zhong

Wang

Wen

et al. 2022

International Journal on Semantic Web and Information Systems

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This paper presents an ontology-based approach to benefit automatic fertilization management for citrus orchards located in mountainous region. The core of the fertilization approach is the citrus fertilization ontology, which covers knowledge about citrus fertilizers and fertilization application. Specially, our approach can provide not only the yearly fertilization quantities of required pure nitrogen, phosphorus, and potassium according to their disease symptoms, but also the suitable fertilizing recommendations for the citrus orchards with different soil properties. The current version of the ontology (ver. 2.9.10) contains 103 classes, 34 properties, 800 instances, which are defined by 3056 RDF triples and is evaluated by using 90 competency questions. Furthermore, we run experiments with our proposal targeting at four citrus orchards in Chongqing, and compare its outputs with the reference values advised by the agri-professionals of citrus planting.

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Section: Citrus Fertilization Management Based On Cfomentioning

confidence: 99%

An Ontology-Based Automation System

Zhong

Wang

Wen

et al. 2022

International Journal on Semantic Web and Information Systems

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“…Due to the different effects of different nutrients on the growth and quality of citrus, both excessive and inadequate application of certain nutrients will cause imbalanced soil nutrition for citrus fruit (Srivastava et al, 2002). Typical examples include a large excess of nitrogen (average 712 kg N ha −1 ), phosphorus (average 364 kg P 2 O 5 ha −1 ), and potassium fertilizers (average 565 kg K 2 O ha −1 ) applied annually (Li et al, 2020). This unbalanced fertilization aggravated soil Mg depletion in 89% of citrus orchards (Yuheng et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

Spatiotemporal prediction and optimization of environmental suitability in citrus-producing areas

Zou²,

Yang³

et al. 2022

Front. Environ. Sci.

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The increasing need for citrus has driven the rapid expansion of citrus planting areas. However, not all areas are suitable for growing citrus. It is necessary to understand the future changing trend of environmental suitability in citrus-producing areas. Here, based on the soil nutrient data of citrus cultivation from 2006 to 2018, the spatiotemporal kriging method was used to predict the spatiotemporal distribution of soil nutrients in Zigui County, Hubei Province. Then, geographical and meteorological conditions were combined to evaluate the suitability for citrus cultivation at temporal and spatial levels, and the results were verified by the yield and quality data of citrus. The results showed that from 2018 to 2027, the overall suitability of the citrus-producing area displayed a gradually rising trend, with the “suitable” producing area increasing from 4.5% to 20.16%. The validation results indicated that the mean relative errors of spatiotemporal predictors were less than 30% except for the effective iron. Correlation analysis revealed that the proportion of “moderately suitable” and “suitable” orchards had significant positive correlations with annual yield. The low suitability of Maoping town was mainly attributed to its soil acidification and available P content, and that of Shazhenxi town was ascribed to its low soil contents of available P and N. The optimal fertilization scheme was constructed by an artificial neural network to optimize the fertilization status of some citrus producing areas. This study has created a dynamic assessment of the environmental suitability of citrus production areas to support improvements in citrus production.

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“…Under field conditions, excess Al significantly inhibited the root development of Citrus aurantium L. [ 9 ]. Accordingly, the citrus fruit yield also decreased significantly under Al toxicity [ 10 ]. In sandy culture, the biomass of citrus seedlings was depressed by Al toxicity, inducing the oxidative stress and the photosynthetic inhibition of citrus seedlings [ 11 ].…”

Section: Introductionmentioning

confidence: 99%

The aluminum distribution and translocation in two citrus species differing in aluminum tolerance

Zhang

Lin

et al. 2022

BMC Plant Biol

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Background Many citrus orchards of south China suffer from soil acidification, which induces aluminum (Al) toxicity. The Al-immobilization in vivo is crucial for Al detoxification. However, the distribution and translocation of excess Al in citrus species are not well understood. Results The seedlings of ‘Xuegan’ [Citrus sinensis (L.) Osbeck] and ‘Shatianyou’ [Citrus grandis (L.) Osbeck], that differ in Al tolerance, were hydroponically treated with a nutrient solution (Control) or supplemented by 1.0 mM Al3+ (Al toxicity) for 21 days after three months of pre-culture. The Al distribution at the tissue level of citrus species followed the order: lateral roots > primary roots > leaves > stems. The concentration of Al extracted from the cell wall (CW) of lateral roots was found to be about 8 to 10 times higher than in the lateral roots under Al toxicity, suggesting that the CW was the primary Al-binding site at the subcellular level. Furthermore, the Al distribution in CW components of the lateral roots showed that pectin had the highest affinity for binding Al. The relative expression level of genes directly relevant to Al transport indicated a dominant role of Cs6g03670.1 and Cg1g021320.1 in the Al distribution of two citrus species. Compared to C. grandis, C. sinensis had a significantly higher Al concentration on the CW of lateral roots, whereas remarkably lower Al levels in the leaves and stems. Furthermore, Al translocation revealed by the absorption kinetics of the CW demonstrated that C. sinensis had a higher Al retention and stronger Al affinity on the root CW than C. grandis. According to the FTIR (Fourier transform infrared spectroscopy) analysis, the Al distribution and translocation might be affected by a modification in the structure and components of the citrus lateral root CW. Conclusions A higher Al-retention, mainly attributable to pectin of the root CW, and a lower Al translocation efficiency from roots to shoots contributed to a higher Al tolerance of C. sinensis than C. grandis. The aluminum distribution and translocation of two citrus species differing in aluminum tolerance were associated with the transcriptional regulation of genes related to Al transport and the structural modification of root CW.

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Phosphorus application improved the yield of citrus plants grown for three years in an acid soil in the Three Gorges Reservoir Area

Cited by 9 publications

References 29 publications

An Ontology-Based Automation System

An Ontology-Based Automation System

Spatiotemporal prediction and optimization of environmental suitability in citrus-producing areas

The aluminum distribution and translocation in two citrus species differing in aluminum tolerance

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