Yield Gap Associated with Crop Management in Wheat (Case Study: Ardabil Province-Parsabad Moghan)
Shirinzadeh, A., Heidari Sharif Abad, H., Nourmohammadi, G., Haravan, E., Madani, H. (2018). Yield Gap Associated with Crop Management in Wheat (Case Study: Ardabil Province-Parsabad Moghan). EKB Journal Management System, 40(3), 223-236. doi: 10.21608/agro.2018.3708.1103
Asgar Shirinzadeh; Hossein Heidari Sharif Abad; Ghorban Nourmohammadi; Eslam Majidi Haravan; Hamid Madani. "Yield Gap Associated with Crop Management in Wheat (Case Study: Ardabil Province-Parsabad Moghan)". EKB Journal Management System, 40, 3, 2018, 223-236. doi: 10.21608/agro.2018.3708.1103
Shirinzadeh, A., Heidari Sharif Abad, H., Nourmohammadi, G., Haravan, E., Madani, H. (2018). 'Yield Gap Associated with Crop Management in Wheat (Case Study: Ardabil Province-Parsabad Moghan)', EKB Journal Management System, 40(3), pp. 223-236. doi: 10.21608/agro.2018.3708.1103
Shirinzadeh, A., Heidari Sharif Abad, H., Nourmohammadi, G., Haravan, E., Madani, H. Yield Gap Associated with Crop Management in Wheat (Case Study: Ardabil Province-Parsabad Moghan). EKB Journal Management System, 2018; 40(3): 223-236. doi: 10.21608/agro.2018.3708.1103

Yield Gap Associated with Crop Management in Wheat (Case Study: Ardabil Province-Parsabad Moghan)

Egyptian Journal of Agronomy
Article 3, Volume 40, Issue 3, December 2018, Page 223-236  XML PDF (1.04 MB)
Document Type: Original Article
DOI: 10.21608/agro.2018.3708.1103
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Authors
Asgar Shirinzadeh1; Hossein Heidari Sharif Abad email 1; Ghorban Nourmohammadi1; Eslam Majidi Haravan1; Hamid Madani2
1Department of Agronomy, Science and Research Branch, Islamic Azad University, Tehran, Iran
2Department of Agronomy, Arak Branch, Islamic Azad University, Arak, Iran
Abstract
TO INVESTIGATE the factors affecting irrigated wheat yield loss, compared to the attainable yield, a non systematic survey experiment was conducted in 60 fields in the city of Parsabad-Moghan, during two years 2013-2014 and 2014-2015 using Comparative Performance Analysis (CPA). Sampling of wheat fields was performed randomly from 5 different points of each farm using a square meter. All the information about management operations, soil and crop characteristics including seed bed preparation, planting date, varieties and their site preparation, seed rate, planting ways, weeds control ways, amount and timing of herbicides and fungicide use and wheat harvest time were recorded during a seasonal year using questionnaire. At the end of the seasonal year, the actual yield harvested by farmer’s was recorded. Among the various parameters, planting time, spike density, the number of split application of urea, land preparation operations, farmer experience and repeated use of fungicides had significant effects on wheat yield. The results showed that the average actual yield (6431.85kg/ha) and attainable yield (8749.27kg/ha), were different with a gap of 2317.42kg per hectare. The share of each of the factors were: Wheat planting time of yield gap 18%, spike density, 29%, the split application of urea 20%, land preparation operations 4.6%, farmer experience 14.3%, repeated use of fungicides 13.4%. The improvisation cases referred above can reduced yield gap and increase yield to more than 8.7ton/ha.
Keywords
Actual yield; Attainable yield; Agronomic management; Wheat; Yield gap
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