Volume 26 (2024)
Volume 25 (2023)
Volume 24 (2022)
Volume 23 (2021)
Volume 22 (2020)
Volume 21 (2019)
Volume 20 (2018)
Volume 19 (2017)
Volume 18 (2016)
Volume 17 (2015)
Volume 16 (2014)
Volume 15 (2013)
Volume 14 (2012)
Volume 13 (2011)
Volume 12 (2010)
Volume 11 (2009)
Determining Yield Gap and Potential for Improved Production of Irrigated Canola in Iran

samaneh rahban; Benjamin Torabi; afshin soltani; Ebrahim Zeinali

Volume 24, Issue 2 , June 2022, , Pages 393-406

https://doi.org/10.22059/jci.2021.319201.2520

Abstract
  The present study tries to estimate the yield gap of irrigated canola in Iran as the first step for planning sustainable improvement of production. It has been performed in the modeling laboratory of Gorgan University of Agricultural Sciences and Natural Resources in 2017-2019. The protocol provided ...  Read More

Documentation of production process and determination of limiting factors of wheat yield by CPA method in Kalaleh County

Mohammad Sharif Nobatiany; ali Rahemi karizaki; Abbas Biabani; ali mansouri rad

Volume 22, Issue 3 , September 2020, , Pages 361-372

https://doi.org/10.22059/jci.2020.284310.2237

Abstract
  This study was conducted to evaluate the factors limiting wheat yield in Kalaleh County using the Comparative Performance Analysis (CPA) method in 2015-16. Collection of the required information was done by fieldwork, and personal interviews with farmers. To this aim, 60 wheat fields in dry land areas ...  Read More

Identification of Rapeseed Limiting Factors Using Performance Comparison Analysis

Shahram SekhavatiFar; ali Rahemi karizaki; Ali Nakhzari Moghaddam; Mehdi Mollashahi

Volume 22, Issue 1 , March 2020, , Pages 13-25

https://doi.org/10.22059/jci.2019.280944.2212

Abstract
  Understanding the performance potential and the gap between the actual yields of crops with the achievable function is necessary to diagnose the limiting factors of performance. The present study was conducted based on the method of CPA in 50 fields of Zavkooh villi (Kalaleh, Golestan, Iran) in 2016 ...  Read More

Identifying soybean yield-limiting factors by using Comparative Performance Analysis (Case study: Golestan province – Kalaleh)

Ali Mansouri rad; Ali Nakhzari Moghadam; Afshin Soltani; Ali Rahemi Karizaki; Benyamin Torabi

Volume 19, Issue 4 , March 2018, , Pages 1033-1046

https://doi.org/10.22059/jci.2018.227778.1675

Abstract
  One of the main problems of soybean production in the east region of Golestan, Iran is considerable difference between actual yield and attainable yield which is called yield gap. In recent years, this gap has been impressive, and therefore, identifying soybean yield-limiting factors is essentially needed. ...  Read More