نتایج جستجو برای: lack of optimal growing degree days gdd
تعداد نتایج: 21209518 فیلتر نتایج به سال:
The availability of a great amount remote sensing data for precision agriculture purposes has set the question which resolution and indices, derived from satellites or unmanned aerial vehicles (UAVs), offer most accurate results to characterize vegetation. This study focused on assessing, comparing, discussing performances limitations satellite UAV-based imagery in terms canopy development, i.e...
the chamomile species of anthemis triumfettii (l.) all is one of important medicinal plant belong to compositae family and it grows as wild species in zagros and alborz mountains, iran. the aim of this study was to evaluation of morphological and phenological traits and their relationships with essential oil. seeds of seven accessions were sown in jiffy pots and transferred to field using rando...
Using a shape model (SM) is typical method to determine the phenological phases of crops with long-time-series satellite remote sensing data. The average AGDD-based (AAGDD-SM) takes temperature into account compared SM, however, commonly used daily not sufficient exact AGDD owing possibly significant changes in temperatures throughout day. In this paper, modified was proposed for better estimat...
in this study, the relationship between teachers’ creative and critical thinking skills and their reflectivity in teaching was investigated. to this end, three questions were raised. these questions were intended to determine whether there was a significant relationship between teachers’ creative thinking skills and their reflectivity in teaching; whether there was a significant relationship be...
In this paper, a new form of weather derivative contract, namely the climatic zone-based growth degree-day (GDD) contract, is introduced. The objective is to increase the risk management efficiency in the agricultural sector of China and to reduce the model dimension of multi-regional temperature-based weather derivatives pricing. Since the proposed contract serves as a risk management tool for...
Elham Davoodi 1, Hoda Ghasemieh 1,†, Okke Batelaan 2,† ID and Khodayar Abdollahi 3,*,† ID 1 Faculty of Natural Resources and Earth Sciences, Kashan University, KM 6 BLVD. Ghotb Ravandi, Kashan 8731753153, Iran; [email protected] (E.D.); [email protected] (H.G.) 2 National Centre for Groundwater Research and Training, College of Science and Engineering, Flinders University, Adelai...
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