Volume 25, Issue 6 (2023)                   JAST 2023, 25(6): 1455-1467 | Back to browse issues page


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Rashidi O L, Hajabbasi M A, Naghavi H, Gheysari M, Razmjoo J. Introducing a Suitable Strategy to Improve Wheat Properties and Water Productivity under Moisture Stress Conditions in a Sandy Loam Soil. JAST 2023; 25 (6) :1455-1467
URL: http://jast.modares.ac.ir/article-23-60939-en.html
1- Department of Soil Sciences, College of Agriculture, Isfahan University of Technology, Isfahan 8415683111, Iran , rashidy.leila@yahoo.com
2- Department of Soil Sciences, College of Agriculture, Isfahan University of Technology, Isfahan, Islamic Republic of Iran.
3- Soil and Water Research Department, Kerman Agricultural and Natural Resources Research and Education Center, Kerman, Islamic Republic of Iran.
4- Department of Water Engineering, College of Agriculture, Isfahan University of Technology, Isfahan, Islamic Republic of Iran.
5- Department of Agronomy and Plant Breeding, College of Agriculture, Isfahan University of Technology, Isfahan, Islamic Republic of Iran.
Abstract:   (203 Views)
One way of developing sustainable agriculture is to increase crop Water Productivity (WP). In drought conditions, cultivation management should result in reducing water consumption as well as lowering the negative impacts on crop yield and quality. This experiment was conducted to determine the influence of irrigation levels (full and deficit irrigation, providing 100 and 75% of the irrigation water requirement, respectively) and soil water retaining materials (organic fertilizer, superabsorbent at depths of 30 and 40 cm, superabsorbent mixed with soil, band application of superabsorbent, plastic installation at depths of 30 and 40 cm and control) on WP, leaf Relative Water Content (RWC), Electrolyte Leakage (EL), photosynthetic pigments, yield and yield components of wheat during the growing seasons of 2017 and 2018. The deficit irrigation caused an increase in WP and EL and decreased yield, yield components, RWC, and photosynthetic pigments, while the soil water retaining materials improved these properties. The average yields in the organic fertilizer treatment and installation of plastic at a depth of 40 cm were 9.55 and 8.76 tons ha-1, respectively. The highest WP (1.89 kg m-3) was observed in the organic fertilizer treatment. Application of cow manure and installation of plastic membrane did not have significant effect on wheat properties in the two water conditions. Overall, utilizing organic fertilizer and nylon membranes under deficit irrigation, improved wheat characteristics and WP. However, to reach a comprehensive conclusion, it is necessary to evaluate these treatments for several consecutive years with different soil and water conditions.
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Article Type: Original Research | Subject: Irrigation and Drainage
Received: 2022/04/17 | Accepted: 2022/12/11 | Published: 2023/12/2

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