Development and Field Validation of a Smartphone-Based Web Application for Diagnosing Optimal Timing of Mid-Season Drainage in Rice Cultivation via Canopy Image-Derived Tiller Estimation
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.A new smartphone app estimates rice tiller numbers from canopy images to determine optimal midseason drainage timing. This technology aids farmers in improving rice quality and water management in warm regions.
Area Of Science
- Agricultural Science
- Agronomy
- Crop Science
Background
- High temperatures during early rice growth cause excessive tillering, leading to quality deterioration in warm regions.
- Precise midseason drainage timing is crucial for rice production but is challenging due to yearly and cultivar variations.
Purpose Of The Study
- To develop a smartphone-based application for estimating rice tiller numbers and determining optimal midseason drainage timing.
- To provide farmers with a tool for labor-saving and improved water management in rice cultivation.
Main Methods
- Developed a smartphone web application utilizing HTML5 canvas for pixel extraction and JavaScript for computation.
- Employed Google Apps Script for backend processing to estimate tiller numbers from canopy images.
- Conducted field experiments with three rice cultivars to validate the system's accuracy.
Main Results
- A strong linear relationship was observed between estimated and actual tiller numbers (R² = 0.9439).
- The system showed a root mean square error (RMSE) of 42.6 tillers m⁻², with a slight underestimation bias.
- The error margin was deemed acceptable for decision-making, corresponding to 1-3 days of growth progression.
Conclusions
- The smartphone application reliably estimates relative rice growth dynamics and supports drainage timing decisions.
- This innovative approach offers rapid, on-site decision support for rice farmers using only a smartphone.
- The system contributes to labor savings and enhanced water management practices in rice production.
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
Related Concept Videos
Seasoning of wood is a crucial process aimed at reducing and stabilizing the moisture content within the wood to prevent future shrinkage, structural damage, or aesthetic issues once the wood is used in construction. Wood naturally swells when it absorbs moisture and contracts as it dries.
Achieving equilibrium moisture content is the goal of seasoning; this is the point where the wood's moisture content stabilizes to align with the moisture levels of the surrounding environment. Proper...
The Global Positioning System (GPS) has become an indispensable tool in fieldwork, offering unparalleled precision and efficiency for surveying, navigation, and infrastructure development. By harnessing signals from a constellation of satellites, GPS receivers determine the location of objects with remarkable speed and accuracy, often completing calculations within a second.Advantages of Modern GPS TechnologyContemporary GPS receivers are designed to meet the practical demands of field...
An important distinction exists between the electric field induced by a changing magnetic field and the electrostatic field produced by a fixed charge distribution. Specifically, the induced electric field is nonconservative because it does not work in moving a charge over a closed path. In contrast, the electrostatic field is conservative and does no net work over a closed path. Hence, electric potential can be associated with the electrostatic field but not the induced field. The following...
Reliability and validity are two important considerations that must be made with any type of data collection. Reliability refers to the ability to consistently produce a given result. In the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways.
Unfortunately, being consistent in measurement does not necessarily mean that you have measured something correctly. To illustrate this concept, consider a kitchen...
The circadian—or biological—clock is an intrinsic, timekeeping, molecular mechanism that allows plants to coordinate physiological activities over 24-hour cycles called circadian rhythms. Photoperiodism is a collective term for the biological responses of plants to variations in the relative lengths of dark and light periods. The period of light-exposure is called the photoperiod.
One example of photoperiodism in plants is seasonal flowering. Scientists believe that plants are cued...
In vitro dissolution and drug release tests assess how quickly and how much of a drug is released from its dosage form into an aqueous medium under standardized laboratory conditions. These tests are essential tools in pharmaceutical development and quality assurance, offering insight into the drug's performance before clinical use.During formulation development, dissolution testing identifies incomplete or inconsistent drug release issues. It also supports decisions on selecting the optimal...