Introduction Nitrogen (N) is one of the most important mineral nutrients for plant growth, yield and crop quality. Precise timing and rate of N fertilizer application play a major role in plant nutrition. Prediction of N requirements is necessary for efficient utilization of nitrogen fertilizers. Improving the efficiency of N fertilizer utilization reduces the… read more »
Introduction Nitrogen (N) is one of the most important mineral nutrients for plant growth, yield and crop quality. Precise timing and rate of N fertilizer application play a major role in plant nutrition. Prediction of N requirements is necessary for efficient utilization of nitrogen fertilizers. Improving the efficiency of N fertilizer utilization reduces the… read more »
Introduction Remote Sensing is the ability to measure the properties of an object or region without the need of physical contact with the object itself (Lillesand and Keifer, 1994). In most remote sensing applications, electromagnetic radiation (EMR) is used to ‘sense’ a certain attribute of the object or area of interest.[1] By combining more than… read more »
Introduction Remote Sensing is the ability to measure the properties of an object or region without the need of physical contact with the object itself (Lillesand and Keifer, 1994). In most remote sensing applications, electromagnetic radiation (EMR) is used to ‘sense’ a certain attribute of the object or area of interest.[1] By combining more than… read more »
Introduction Remote Sensing is the ability to measure the properties of an object or region without the need of physical contact with the object itself (Lillesand and Keifer, 1994). In most remote sensing applications, electromagnetic radiation (EMR) is used to ‘sense’ a certain attribute of the object or area of interest.[1] By combining more than… read more »
Paper Introduction Mapping vegetation in crop fields is an important step in remote sensing applications for precision agriculture. Traditional aerial platforms such as planes and satellites are not suitable for these applications due to their low spatial and temporal resolutions. So, an UAV equipped with a commercial camera (visible spectrum) was used for ultra-high resolution… read more »
Paper Introduction An UAV equipped with a commercial camera (visible spectrum) was used to obtain ultra-high resolution image on a wheat field during the early period. From these images, six visible spectral indices CIVE, ExG, ExGR, Woebbecke Index, NGRDI, VEG and two combinations of these indices for mapping the vegetation fraction were evaluated and evaluated… read more »
Paper Introduction Mapping vegetation in crop fields is an important step in remote sensing applications for precision agriculture. Traditional aerial platforms such as planes and satellites are not suitable for these applications due to their low spatial and temporal resolutions. So, an UAV equipped with a commercial camera (visible spectrum) was used for ultra-high resolution… read more »
Introduction Nitrogen (N) is one of the most important mineral nutrients for plant growth, yield and crop quality. Precise timing and rate of N fertilizer application play a major role in plant nutrition. Prediction of N requirements is necessary for efficient utilization of nitrogen fertilizers. Improving the efficiency of N fertilizer utilization reduces the… read more »
Paper Introduction Plant disease and pests influence the physiological state and restricts the healthy growth of crops. Physiological measurements are considered the most accurate way of assessing plant health status. Specifically, in this paper the use of an in situ hyperspectral remote sensor to detect plant water status in winter wheat infected with powdery mildew… read more »