AI Article Synopsis
- Online measurement of soil moisture is crucial for agricultural productivity, yet there has been little research linking soil moisture levels with laser-induced fluorescence spectroscopy.
- In an experiment using rice, chlorophyll fluorescence was measured via a fiber probe, while soil moisture readings were obtained using TDR sensors under both continuous and intermittent water stress conditions.
- The study found that chlorophyll fluorescence intensity at around 743 nm decreased as soil moisture content decreased, leading to a strong predictive model for determining soil moisture levels based on fluorescence intensity using a Lorentzian equation.
Article Abstract
Online measurement of soil moisture is significant for agricultural production. The abundance and deficiency of leaf water shortage has been able to effect measured by fluorescence, but the research of correlation between soil moisture and laser-induced fluorescence spectroscopy has not been carried out yet. In this paper, the relationship between laser-induced plant chlorophyll fluorescence and soil moisture was studied. In the experiment with rice as the research object, the chlorophyll fluorescence induced by a 450 nm LED light source was measured by a Y-shaped fiber probe, and the soil moisture was obtained by TDR sensors. The changes in the peak intensity near 743 nm of chlorophyll fluorescence under continuous water stress and intermittent water stress were studied. The result showed that the intensity decreased with the soil moisture content. Finally, the model between the soil water content and the intensity of chlorophyll fluorescence under continuous water stress was created by using Lorentzian equation, and the coefficient of determination (R2) of the model was high. The result indicated that the method mentioned in paper can be applied to measure soil moisture in agricultural production.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Soil moisture drought and diverse impacts on vegetation across the Tibetan Plateau in recent three decades.
Sci Total Environ
January 2025
Key Laboratory of Lake and Watershed Science for Water Security, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing, China. Electronic address:
Climate warming is presumed to cause drought on the Tibetan Plateau (TP), posing severe threats to local vegetation and ecosystems. Currently, soil moisture (SM) drought and its effects on vegetation growth have been rarely reported, due to lacking observations and data uncertainties. Here we used ERA5-Land, ESA CCI, and GLDAS Noah SM to investigate the spatiotemporal patterns of summertime (May-September) SM drought and its impacts on vegetation over 1995-2018.
View Article and Find Full Text PDFA Review on Sustainable Slow-Release N, P, K Fertilizer Hydrogels for Smart Agriculture.
Chempluschem
January 2025
Department of Chemical Engineering, Indian Institute of Science Education and Research Bhopal, Bhopal, 462066, Madhya Pradesh, India.
The agricultural sector of any country plays a pivotal role in its economy. Irrigation and the provision of appropriate nutrient levels in soil are essential for optimizing plant growth and enhancing crop productivity. To support the increasing need for food due to the growing population worldwide, synthetic fertilizers have been widely used in the agricultural sector.
View Article and Find Full Text PDFLong-Term Intercropping With Nitrogen Management to Improve Soil Quality and Control Crop Diseases.
Plant Cell Environ
January 2025
College of Resources and Environment, Yunnan Agricultural University, Kunming, Yunnan, China.
Long-term positioning experiments have demonstrated significant benefits in agricultural production and environmental protection. Faba bean-wheat intercropping with nitrogen fertiliser can effectively mitigate the occurrence of faba bean wilt disease. Identifying the optimal nitrogen application rate is essential for enhancing the disease control efficacy of intercropping.
View Article and Find Full Text PDFExploring the link between soil health and crop productivity.
Ecotoxicol Environ Saf
January 2025
Guangdong Provincial Key Laboratory of Applied Botany, South China Botanical Garden, Chinese Academy of Sciences, Guangzhou 510650, China.
Understanding the complex interactions of plants and soils in the face of global food security and environmental degradation challenges is critical to the future of sustainable agriculture. This review discusses the important link between soil health and crop productivity by providing and comprehensive assessment of soil properties and management methods. By examining the physical, chemical, and biological properties of soil, it uncovers the key limitations posed by the soil environment on crop growth.
View Article and Find Full Text PDFStudy on the effect of water content on physical properties of bentonite.
PLoS One
January 2025
Lecturer College of Civil and Traffic Engineering, Henan University of Urban Construction, Ping Dingshan, China.
Moisture content profoundly influences the engineering properties of expansive soil, a critical consideration in various geotechnical applications. This study delves into the intricate relationship between water content and the physical properties of bentonite, a key constituent of expansive soil. Through a comprehensive analysis encompassing fundamental physical properties, rheological characteristics, permeability behavior, and microscopic features, we elucidate the complex interplay between water content and bentonite behavior.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!