The Experts below are selected from a list of 360 Experts worldwide ranked by ideXlab platform

Bin Zhou - One of the best experts on this subject based on the ideXlab platform.

  • crabgrass digitaria sanguinalis allelochemicals that interfere with Crop Growth and the soil microbial community
    Journal of Agricultural and Food Chemistry, 2013
    Co-Authors: Bin Zhou, Chuihua Kong, Yonghua Li, Xiaohua Xu
    Abstract:

    Three chemicals, veratric acid, maltol, and (−)-loliolide, were isolated from crabgrass and their structures were identified by spectroscopic analysis. The chemicals were detected in crabgrass root exudates and rhizosphere soils, and their concentrations ranged from 0.16 to 8.10 μg/g. At an approximate concentration determined in crabgrass root exudates, all chemicals significantly inhibited the Growth of wheat, maize, and soybean and reduced soil microbial biomass carbon. Phospholipid fatty acid profiling showed that veratric acid, maltol, and (−)-loliolide affected the signature lipid biomarkers of soil bacteria, actinobacteria, and fungi, resulting in changes in soil microbial community structures. There were significant relationships between Crop Growth and soil microbes under the chemicals’ application. Chemical-specific changes in the soil microbial community generated negative feedback on Crop Growth. The results suggest that veratric acid, maltol, and (−)-loliolide released from crabgrass may act ...

  • Crabgrass (Digitaria sanguinalis) Allelochemicals That Interfere with Crop Growth and the Soil Microbial Community
    Journal of Agricultural and Food Chemistry, 2013
    Co-Authors: Bin Zhou, Chuihua Kong, Peng Wang
    Abstract:

    Three chemicals, veratric acid, maltol, and (−)-loliolide, were isolated from crabgrass and their structures were identified by spectroscopic analysis. The chemicals were detected in crabgrass root exudates and rhizosphere soils, and their concentrations ranged from 0.16 to 8.10 μg/g. At an approximate concentration determined in crabgrass root exudates, all chemicals significantly inhibited the Growth of wheat, maize, and soybean and reduced soil microbial biomass carbon. Phospholipid fatty acid profiling showed that veratric acid, maltol, and (−)-loliolide affected the signature lipid biomarkers of soil bacteria, actinobacteria, and fungi, resulting in changes in soil microbial community structures. There were significant relationships between Crop Growth and soil microbes under the chemicals' application. Chemical-specific changes in the soil microbial community generated negative feedback on Crop Growth. The results suggest that veratric acid, maltol, and (−)-loliolide released from crabgrass may act as allelochemicals interfering with Crop Growth and the soil microbial community.

Peng Wang - One of the best experts on this subject based on the ideXlab platform.

  • Crabgrass (Digitaria sanguinalis) Allelochemicals That Interfere with Crop Growth and the Soil Microbial Community
    Journal of Agricultural and Food Chemistry, 2013
    Co-Authors: Bin Zhou, Chuihua Kong, Peng Wang
    Abstract:

    Three chemicals, veratric acid, maltol, and (−)-loliolide, were isolated from crabgrass and their structures were identified by spectroscopic analysis. The chemicals were detected in crabgrass root exudates and rhizosphere soils, and their concentrations ranged from 0.16 to 8.10 μg/g. At an approximate concentration determined in crabgrass root exudates, all chemicals significantly inhibited the Growth of wheat, maize, and soybean and reduced soil microbial biomass carbon. Phospholipid fatty acid profiling showed that veratric acid, maltol, and (−)-loliolide affected the signature lipid biomarkers of soil bacteria, actinobacteria, and fungi, resulting in changes in soil microbial community structures. There were significant relationships between Crop Growth and soil microbes under the chemicals' application. Chemical-specific changes in the soil microbial community generated negative feedback on Crop Growth. The results suggest that veratric acid, maltol, and (−)-loliolide released from crabgrass may act as allelochemicals interfering with Crop Growth and the soil microbial community.

Jeroen Meersmans - One of the best experts on this subject based on the ideXlab platform.

  • Remotely-sensed assessment of the impact of century-old biochar on chicory Crop Growth using high-resolution UAV-based imagery
    International Journal of Applied Earth Observation and Geoinformation, 2020
    Co-Authors: Ramin Dehkordi, Antoine Denis, Julien Fouché, Victor Burgeon, Jean Cornelis, Bernard Tychon, Edmundo Placencia Gomez, Jeroen Meersmans
    Abstract:

    In recent years, special attention has been given to the long-term effects of biochar on the performance of agro-ecosystems owing to its potential for improving soil fertility, harvested Crop yields, and aboveground biomass production. The present experiment was set up to identify the effects on soil-plant systems of biochar produced more than 150 years ago in charcoal mound kiln sites in Wallonia (Belgium). Although the impacts of biochar on soil-plant systems are being increasingly discussed, a detailed monitoring of the Crop dynamics throughout the growing season has not yet been well addressed. At present there is considerable interest in applying remote sensing for Crop Growth monitoring in order to improve sustainable agricultural practices. However, studies using high-resolution remote sensing data to focus on century-old biochar effects are not yet available. For the first time, the impacts of century-old biochar on Crop Growth were investigated at canopy level using high-resolution airborne remote sensing data over a cultivated field. High-resolution RGB, multispectral and thermal sensors mounted on unmanned aerial vehicles (UAVs) were used to generate high frequency remote sensing information on the Crop dynamics. UAVs were flown over 11 century-old charcoal-enriched soil patches and the adjacent reference soils of a chicory field. We retrieved crucial Crop parameters such as canopy cover, vegetation indices and Crop water stress from the UAV imageries. In addition, our study also provides in-situ measurements of soil properties and Crop traits. Both UAV-based RGB imagery and in-situ measurements demonstrated that the presence of century-old biochar significantly improved chicory canopy cover, with greater leaf lengths in biochar patches. Weighted difference vegetation index imagery showed a negative influence of biochar presence on plant greenness at the end of the growing season. Chicory Crop stress was significantly increased by biochar presence, whereas the harvested Crop yield was not affected. The main significant variations observed between reference and century-old biochar patches using in situ measurements of Crop traits concerned leaf length. Hence, the output from the present study will be of great interest to help developing climate-smart agriculture practices allowing for adaptation and mitigation to climate.

Xiaohua Xu - One of the best experts on this subject based on the ideXlab platform.

  • crabgrass digitaria sanguinalis allelochemicals that interfere with Crop Growth and the soil microbial community
    Journal of Agricultural and Food Chemistry, 2013
    Co-Authors: Bin Zhou, Chuihua Kong, Yonghua Li, Xiaohua Xu
    Abstract:

    Three chemicals, veratric acid, maltol, and (−)-loliolide, were isolated from crabgrass and their structures were identified by spectroscopic analysis. The chemicals were detected in crabgrass root exudates and rhizosphere soils, and their concentrations ranged from 0.16 to 8.10 μg/g. At an approximate concentration determined in crabgrass root exudates, all chemicals significantly inhibited the Growth of wheat, maize, and soybean and reduced soil microbial biomass carbon. Phospholipid fatty acid profiling showed that veratric acid, maltol, and (−)-loliolide affected the signature lipid biomarkers of soil bacteria, actinobacteria, and fungi, resulting in changes in soil microbial community structures. There were significant relationships between Crop Growth and soil microbes under the chemicals’ application. Chemical-specific changes in the soil microbial community generated negative feedback on Crop Growth. The results suggest that veratric acid, maltol, and (−)-loliolide released from crabgrass may act ...

Chuihua Kong - One of the best experts on this subject based on the ideXlab platform.

  • crabgrass digitaria sanguinalis allelochemicals that interfere with Crop Growth and the soil microbial community
    Journal of Agricultural and Food Chemistry, 2013
    Co-Authors: Bin Zhou, Chuihua Kong, Yonghua Li, Xiaohua Xu
    Abstract:

    Three chemicals, veratric acid, maltol, and (−)-loliolide, were isolated from crabgrass and their structures were identified by spectroscopic analysis. The chemicals were detected in crabgrass root exudates and rhizosphere soils, and their concentrations ranged from 0.16 to 8.10 μg/g. At an approximate concentration determined in crabgrass root exudates, all chemicals significantly inhibited the Growth of wheat, maize, and soybean and reduced soil microbial biomass carbon. Phospholipid fatty acid profiling showed that veratric acid, maltol, and (−)-loliolide affected the signature lipid biomarkers of soil bacteria, actinobacteria, and fungi, resulting in changes in soil microbial community structures. There were significant relationships between Crop Growth and soil microbes under the chemicals’ application. Chemical-specific changes in the soil microbial community generated negative feedback on Crop Growth. The results suggest that veratric acid, maltol, and (−)-loliolide released from crabgrass may act ...

  • Crabgrass (Digitaria sanguinalis) Allelochemicals That Interfere with Crop Growth and the Soil Microbial Community
    Journal of Agricultural and Food Chemistry, 2013
    Co-Authors: Bin Zhou, Chuihua Kong, Peng Wang
    Abstract:

    Three chemicals, veratric acid, maltol, and (−)-loliolide, were isolated from crabgrass and their structures were identified by spectroscopic analysis. The chemicals were detected in crabgrass root exudates and rhizosphere soils, and their concentrations ranged from 0.16 to 8.10 μg/g. At an approximate concentration determined in crabgrass root exudates, all chemicals significantly inhibited the Growth of wheat, maize, and soybean and reduced soil microbial biomass carbon. Phospholipid fatty acid profiling showed that veratric acid, maltol, and (−)-loliolide affected the signature lipid biomarkers of soil bacteria, actinobacteria, and fungi, resulting in changes in soil microbial community structures. There were significant relationships between Crop Growth and soil microbes under the chemicals' application. Chemical-specific changes in the soil microbial community generated negative feedback on Crop Growth. The results suggest that veratric acid, maltol, and (−)-loliolide released from crabgrass may act as allelochemicals interfering with Crop Growth and the soil microbial community.