Crop evapotranspiration calculation using infrared thermometers aboard center pivots
نویسندگان
چکیده
منابع مشابه
Non-contact infrared thermometers.
floaters. Visual acuity was 6/18-2 in the left eye and 6/60 in the right. Dilated fundus examination showed bilateral vitreous haemorrhages, with neovascularisation at the disc and elsewhere, and tractional retinal detachments. Non-fasting pinprick blood glucose was 20.3 mmol/L and blood pressure was 140/100 mmHg. The patient denied weight loss (BMI 18 kg/m2) or polydipsia, although detailed qu...
متن کاملEvapotranspiration Estimation Using Soil Water Balance, Weather and Crop Data
The rise in water demand for agriculture, industry, domestic, and environmental needs requires sagacious use of this limited resource. Since agriculture (mainly irrigation) is the major user of water, improving agricultural water management is essential. Efficient agricultural water management requires reliable estimation of crop water requirement (evapotranspiration). Evapotranspiration (ET) i...
متن کاملSelecting sprinkler packages for center pivots
Center pivots are the primary method of irrigation across the U.S. Great Plains. Center-pivot irrigation is also the fastest growing method of irrigation in the U.S. and around the world. Pivots have the potential to be very efficient and uniform if sprinkler devices are properly selected for local field conditions. New water application devices provide for selection that minimizes runoff and c...
متن کاملSensitivity of different evapotranspiration calculation methods in different crop-weather models
The calculation of evapotranspiration and its components transpiration and evapotranspiration is of crucial importance in dynamic crop-weather models, irrigation models and SVAT models. Although many approaches were developed and adapted for various applications and based on available input data, there is still a remarkable range of uncertainty related for a representative calculation. However,...
متن کاملEstimation of Crop Evapotranspiration of Cotton using Remote Sensing Technique
Crop coefficient values are used to estimate crop evapotranspiration (ETc) for determining irrigation scheduling. Many important crop biophysical properties such as Percentage Vegetation Cover and Leaf Area Index can be estimated from remotely sensed Vegetation Index, in order to quantify real time vegetation growth dynamics. The objective of this study was to understand the effectiveness of ba...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Agricultural Water Management
سال: 2017
ISSN: 0378-3774
DOI: 10.1016/j.agwat.2017.03.016