نتایج جستجو برای: crop performance

تعداد نتایج: 1112825  

سجادی, سید جواد , صبوری, حسین ,

Crop yield prediction has an important role in agricultural policies such as specification of the crop price. Crop yield prediction researches have been based on regression analysis. In this research canola yield was predicted using Artificial Neural Networks (ANN) using 11 crop year climate data (1998-2009) in Gonbad-e-Kavoos region of Golestan province. ANN inputs were mean weekly rainfall, m...

Journal: :International Journal of Current Microbiology and Applied Sciences 2020

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - دانشکده ادبیات و علوم انسانی دکتر علی شریعتی 1391

the major aim of this study was to investigate the relationship between iq, eq and test format in the light of test fairness considerations. this study took this relationship into account to see if people with different eq and iq performed differently on different test formats. to this end, 90 advanced learners of english form college of ferdowsi university of mashhad were chosen. they were ask...

2007
Gabriel B. Senay Michael Budde James P. Verdin Assefa M. Melesse

Accurate crop performance monitoring and production estimation are critical for timely assessment of the food balance of several countries in the world. Since 2001, the Famine Early Warning Systems Network (FEWS NET) has been monitoring crop performance and relative production using satellite-derived data and simulation models in Africa, Central America, and Afghanistan where ground-based monit...

2017
Christoph Müller Joshua Elliott James Chryssanthacopoulos Almut Arneth Juraj Balkovic Philippe Ciais Delphine Deryng Christian Folberth Michael Glotter Steven Hoek Toshichika Iizumi Roberto C. Izaurralde Curtis Jones Nikolay Khabarov Peter Lawrence Wenfeng Liu Stefan Olin Thomas A. M. Pugh Deepak K. Ray Ashwan Reddy Cynthia Rosenzweig Alex C. Ruane Gen Sakurai Erwin Schmid Rastislav Skalsky Carol X. Song Xuhui Wang Allard de Wit

Crop models are increasingly used to simulate crop yields at the global scale, but so far there is no general framework on how to assess model performance. Here we evaluate the simulation results of 14 global gridded crop modeling groups that have contributed historic crop yield simulations for maize, wheat, rice and soybean to the Global Gridded Crop Model Intercomparison (GGCMI) of the Agricu...

2007
P. C. Struik Kenneth G. Cassman M. Koornneef K. G. Cassman

In the future, more food needs to be produced with increasingly scarce natural resources. Genomics can play a key role in accelerating yield gains because it helps to improve our understanding of genetic traits and assists in breeding for better crop performance. The scientific muscle of genomics attracted tremendous research investments, but the efficiency with which these investments are payi...

Journal: :Journal of Experimental Agriculture International 2021

Journal: :International Journal of Current Microbiology and Applied Sciences 2018

Journal: :Development 2016
Jyotirmaya Mathan Juhi Bhattacharya Aashish Ranjan

A number of plant features and traits, such as overall plant architecture, leaf structure and morphological features, vascular architecture and flowering time are important determinants of photosynthetic efficiency and hence the overall performance of crop plants. The optimization of such developmental traits thus has great potential to increase biomass and crop yield. Here, we provide a compre...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید