Studying the dry matter yield and water use efficiency of forage sorghum under water deficit and applying superabsorbent polymer

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FAZELI ROSTAMPOUR M.

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Paper Information

Journal: PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH) Year:2019 | Volume:10 | Issue:35 Page(s): 10-28

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Title

Studying the dry matter yield and water use efficiency of forage sorghum under water deficit and applying superabsorbent polymer

Author(s)

FAZELI ROSTAMPOUR M. | Issue Writer Certificate

Keywords

BenefitQ2

costQ1

economic efficiencyQ2

polymerQ2

water requirementQ3

Abstract

In order to investigate the possibility of decreasing the water requirements forage sorghum (Sorghum bicolor L. var speedfeed) with applying of superabsorbent (SAP), without decreasing the dry matter yield and increasing the water use efficiency, and also to investigate the economic efficiency of applying superabsorbent (SAP), this experiment was conducted in Dashtak region of Zahedan during 2013 and 2014 seasons in a split plot with four irrigation regimes, providing 40, 60, 80 and 100% of the water needed sorghum, calculated from pan evaporation as main plots and four amounts of SAP (0, 75, 150 and 225 kg ha-1) as subplots based on a completely randomized block design with three replications. The results showed that the effect of irrigation regimes, SAP levels and their interaction on dry matter yield, water use efficiency as well as the economic efficiency were significant. The regression models estimated showed that SAP in 100% ETc treatment had no effect on the dry matter yield and water use efficiency but in the other irrigation treatments caused an increased in these traits. Therefore, applying 75 kg SAP per hectare along with a 20% decrease in the sorghum’ s water requirement in arid regions, the dry matter yield and water use efficiency is maintained similar to 100% sorghum’ s water requirement. Also the hightest economic efficiency of SAP was secured at 75 kg SAP per hectare SAP level and 80% of sorghum’ s water requirement.

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APA: Copy

FAZELI ROSTAMPOUR, M.. (2019). Studying the dry matter yield and water use efficiency of forage sorghum under water deficit and applying superabsorbent polymer. PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH), 10(35 ), 10-28. SID. https://sid.ir/paper/370311/en

Vancouver: Copy

FAZELI ROSTAMPOUR M.. Studying the dry matter yield and water use efficiency of forage sorghum under water deficit and applying superabsorbent polymer. PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH)[Internet]. 2019;10(35 ):10-28. Available from: https://sid.ir/paper/370311/en

IEEE: Copy

M. FAZELI ROSTAMPOUR, “Studying the dry matter yield and water use efficiency of forage sorghum under water deficit and applying superabsorbent polymer,” PLANT ECOPHYSIOLOGY (ARSANJAN BRANCH), vol. 10, no. 35 , pp. 10–28, 2019, [Online]. Available: https://sid.ir/paper/370311/en

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