نتایج جستجو برای: crop coefficient

تعداد نتایج: 235699  

2012
A Singels

A layer of harvest residues from the previous crop can reduce wasteful evaporation from the soil surface and thereby increase the efficiency of use of limited water resources for agricultural production. The practice of harvesting sugarcane green and leaving crop residues in the field, as opposed to burning the residue, has been re-adopted in many sugarcane industries worldwide. However, a bett...

2003
D. Singh K. P. Papathanassiou

Assessment of soil and vegetation properties is one of the main objectives of radar remote-sensing applications. The parameters of soil dielectric constant, crop height and extinction coefficient etc are very important for planning of earth resource utilization and the prediction of environmental changes. Although, a lot of work has been already done in this direction, no robust operational met...

2011
Anna Blanta Dalezios Nicolas Aglaia Maliara Nicos Spyropoulos

The water demand to meet seasonal and long-term water needs in Thessaly, central Greece, is related to historical semi-arid conditions in the region, which is the main agricultural area of the country. In this paper irrigation water requirements are assessed through the estimation and monitoring of crop evapotranspiration ETc for cotton fields in Thessaly. Remotely sensed data are used to delin...

Journal: :علوم گیاهان زراعی ایران 0
علیجان بافکار دانشجوی دکتری گروه مهندسی آب دانشگاه شهید چمران اهواز سعید برومند نسب استاد گروه مهندسی آب دانشگاه شهید چمران اهواز مجید بهزاد استاد گروه مهندسی آب دانشگاه شهید چمران اهواز بهمن فرهادی بانسوله استادیار گروه مهندسی آب دانشگاه رازی، کرمانشاه

wofost is a crop growth simulation model which can simulate crop growth and yield components of annual crops dynamically in the various stages of growth period. some parts of the model outputs (crop yield and crop water requirements) can be used in irrigation planning and management of water resources. in this study, a field research was carried out in a randomized complete block design with th...

2017
M N Alam Ujjal Kumar Nath K M R Karim M M Ahmed R Y Mitul

Sugarcane is the main sugar producing crop in Bangladesh. However, improvement of this crop through breeding is limited due to lack of genetic diversity. Therefore, genetic variability and diversity assessment are necessarily important for the foreign introduced materials. Experiment was conducted with 9 exotic sugarcane genotypes at Regional Station, Bangladesh Sugar Crop Research Institute, G...

مجد سلیمی, کوروش , میرلطیفی, سید مجید ,

In tea plantation regions of northern part of the country, application of supplemental irrigation during dry periods (lacking rainfalls) in conjuction with proper nitrogen fertilizer application can significantly improve tea yield per unit of plantation area. In order to quantify the effectiveness of proper irrigation and nitrogen management on tea, the response of tea to various levels of irri...

ژورنال: علوم آب و خاک 2008
مجد سلیمی, کوروش , میرلطیفی, سید مجید ,

In tea plantation regions of northern part of the country, application of supplemental irrigation during dry periods (lacking rainfalls) in conjuction with proper nitrogen fertilizer application can significantly improve tea yield per unit of plantation area. In order to quantify the effectiveness of proper irrigation and nitrogen management on tea, the response of tea to various levels of irri...

A. Patanothai, G. Hoogenboom K. Pannangpetch N. Phakamas

The adaptive responses of crop genotypes and patterns of genotype x location (G x L) interaction are important to crop improvement as they are the basis for selection for specific adaptation and for elucidation of the causes of G x L interaction. Their legitimate assessment, however, requires yield data for the test genotypes for a large number of sites and over multiple years. Such data are se...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید