Research Paper
Investigation of Rice Actual Evapotranspiration and Crop Coefficients for Shiroudi and Hashemi Cultivars in Sari

Mohammad Ali Gholami Sefidkouhi; Zahra Bagheri Khalili; Mohammad-Amin GhaleNovi

Volume 34, Issue 4 , March 2021, Pages 505-515

https://doi.org/10.22092/jwra.2021.123620

Abstract
  Measuring the actual evapotranspiration rate of rice is too much important, in terms of appropriate and optimal water management of the Northern provinces in Iran. The present study aims to measure the actual evapotranspiration rate for two Shiroudi & Hashemi cultivars of rice, in Sari Agricultural ...  Read More

Research Paper
Investigation of Rice Actual Evapotranspiration and Crop Coefficients for Shiroudi and Hashemi Cultivars in Sari

Mehdi Zangiabadi

Volume 34, Issue 4 , March 2021, Pages 517-529

https://doi.org/10.22092/jwra.2021.123655

Abstract
  Measuring the actual evapotranspiration of rice is very important for appropriate and optimal water management in the Northern provinces of Iran. The present study aimed to measure the actual evapotranspiration for two Shiroudi and Hashemi cultivars of rice, in paddy fields of Sari Agricultural and Natural ...  Read More

Research Paper
Determining Crop Water Requirement of Rose Varieties in Hydroponic Greenhouse

fatemeh keykhaei; ghasem zareai; Naser Ganji Khorramdel; sadegh sadeghi

Volume 34, Issue 4 , March 2021, Pages 531-542

https://doi.org/10.22092/jwra.2021.123622

Abstract
  One of the strategies to reduce water losses in agriculture is proper irrigation scheduling, which is based on accurate estimation of crop water requirement. In order to determine the evapotranspiration rate of three rose varieties, a one-year study was conducted in a hydroponic greenhouse equipped with ...  Read More

Research Paper
Evaluation of Vertical Mixing of Saline and Fresh Water in Drainage and Its Effect on Drainage Water Salinity in Dabal Khazaei and Salman Farsi Sugarcane Farms)

ali mokhtaran; abdali naseri; Heidarali kashkuli

Volume 34, Issue 4 , March 2021, Pages 543-561

https://doi.org/10.22092/jwra.2021.122673

Abstract
  In the new drainage conditions in the center and southwest of Khuzestan Province, by reducing the depth of drainage installation and controlled drainage, studying the dynamics of the mixing zone, understanding the specifications of this region, and its effect on the flow rate of drainage water and salinity ...  Read More

Research Paper
Estimation of Water Requirement and Crop Coefficient for Hemp at Different Growth Stages in Birjand Plain

saeid ghavamsaeidi noghabi; ali shahidi; Hossin Homami

Volume 34, Issue 4 , March 2021, Pages 563-573

https://doi.org/10.22092/jwra.2021.122794

Abstract
  Determination of crop water requirement is of great importance in irrigation planning and effective management of water in agriculture. In this regard, lysimeters are used to measure water input and output and water balance method. Therefore, this research was carried out to determine the water requirement ...  Read More

Research Paper
Effect of Different Amounts of Nutrients and Water on Water Productivity of Lily Flower in Greenhouse

Moazzam Hassanpour Asil; Jamalali Olfati; Mohammadreza Khaledian; Zahra-Sadat Nabavi Mohajer

Volume 34, Issue 4 , March 2021, Pages 575-590

https://doi.org/10.22092/jwra.2021.122793

Abstract
  The purpose of the present study was to determine the effect of fertigation with different levels of nutrient solutions and different irrigation regimes on water productivity (ratio of yield to water containing nutrients) in greenhouse lily cultivation. The experiment was conducted in two years at the ...  Read More

Research Paper
Determination of Crop Coefficient of Narcissus Flower by Lysimeter method in Birjand Plain

Akbar Mohammadi; Mohammad Hossain NajafiMood; abbas khashei; Ali Shahidi

Volume 34, Issue 4 , March 2021, Pages 591-601

https://doi.org/10.22092/jwra.2021.123654

Abstract
  Crop coefficient is one of the most important factors in irrigation planning and optimal allocation of water resources to plants. The crop coefficient is obtained through the ratio of actual evapotranspiration to reference crop evapotranspiration. In this research, in order to determine the crop coefficients ...  Read More

Research Paper
Factors Affecting Groundwater Resources Overdraft by Farmers in Zaveh-Torbath Heydarieh Plain

Alireza Karbasi; Toktam Mohtashami; Amin Alizadeh; Zahra Moghimi

Volume 34, Issue 4 , March 2021, Pages 603-614

https://doi.org/10.22092/jwra.2021.123502

Abstract
  Agriculture in arid and semiarid areas is dependent on groundwater extraction. Utilization of groundwater resources in Zaveh-Torbath Haydarieh plain is more than the aquifer's renewable potential, therefore, these resources have a reservoir deficit. To this end, in this study, using the information obtained ...  Read More

Research Paper
Investigation on the Effect of Duration of Irrigation Water in Magnetic Field on Quantitative and Qualitative Indices of Radish Plant

masoumeh metanat; Hossein Banejad; mostafa gholizadeh; morteza goldani

Volume 34, Issue 4 , March 2021, Pages 615-623

https://doi.org/10.22092/jwra.2021.123629

Abstract
  In order to evaluate the effect of the duration of water in the magnetic field on the qualitative and quantitative characteristics of radish plant, a research was conducted in the research greenhouse of the Faculty of Agriculture, Ferdowsi University of Mashhad, in a completely randomized design with ...  Read More