【摘 要】
：
Soil electric conductivity (EC) is a property of soil that correlates with other soil properties that affect crop productivity including soil organic matter
【机 构】
：
Department of Agricultural Engineering, Faculty og Agricultural Technology, Udayana University, Bali
【出 处】
：
The Sixth Asian Conference on Precision Agriculture (第六届亚洲精准
论文部分内容阅读
Soil electric conductivity (EC) is a property of soil that correlates with other soil properties that affect crop productivity including soil organic matter, soil texture, soil moisture content and salinity.In this study, spatio-temporal variability of soil EC at terraced paddy field was analyzed, and EC-based management zone map which can be used as guidance in application of variable-rate fertilizer was developed.Study was conducted at 0.75 ha of paddy field which is cultivated conventionally with paddy-paddy-forage cropping pattern.The soil sample was collected from three planting season, and collected after harvesting, before the next planting.Seventy five soil samples were collected from the field following the grid center sampling method.The soil EC and other macro nutrients of soil were then analyzed at the laboratory.The spatial and temporal variability of soil EC were then analized using ArcView GIS software.In this study, the correlation of EC and others soil properties were also analyzed.The results indicated that EC has a high correlation with total nitrogen of soil.Some spatial and temporal changes of EC variability have been confirmed, and EC-based management zone map have been developed.
其他文献
Effective color vegetation index is required to segment plant from soil and residue backgrounds.In this paper, we propose a robust method to extract corn/we
In precision agriculture, near-ground radio-frequency signal isconsidered as the most promising medium to transfer agricultural information for its convenie
Rural labor is becoming gradually insufficient because farm population decline and population aging problem is being emerged.Therefore, it is necessary for
The study was conducted to develop electrical sow feeding (ESF) system for improving animal welfare of group housed sows.They were fed daily at a level of 2
Most existing image-based methods for crop disease diagnosis usually have high requirement of the input images, including simple background, sufficient dept
Leaf is one of the most important photosynthetic organs of rapeseed(Brassica napus L.).In order to quantify the relationships between the leaf morphological
The unmanned combine harvester was developed using GPS, IMU, and machine vison.Especially, machine vison is the key to determine the working path by recogni
The high cost of real-time kinematic (RTK) differential GPS units required for autonomous guidance has limited their use in practical auto-guided systems ap
Knowledge of the structure and function of vegetation and its reflectance properties has been required for analysing vegetation using remotely sensed data.V
Robot tractors have been developed to solve the problem of shortage of farmers as well as reducing the fatigue of farmers.A global positioning system (GPS)