IDENTIFYING SOYBEAN YIELD-LIMITING FACTORS BY USING COMPARATIVE PERFORMANCEANALYSIS (CASE STUDY: GOLESTAN PROVINCE – KALALEH)

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MANSOURI RAD ALI; NAKHZARI MOGHADAM ALI; SOLTANI AFSHIN; RAHEMI KARIZAKI ALI; TORABI BENYAMIN

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Journal: JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE) Year:2018 | Volume:19 | Issue:4 Page(s): 1033-1046

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Title

IDENTIFYING SOYBEAN YIELD-LIMITING FACTORS BY USING COMPARATIVE PERFORMANCEANALYSIS (CASE STUDY: GOLESTAN PROVINCE – KALALEH)

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Keywords

ACTUAL YIELDQ1

ATTAINABLE YIELDQ3

CPAQ1

CROP MANAGEMENTQ1

SOYBEANQ1

YIELD GAPQ1

Abstract

One of the main problems of SOYBEAN production in the east region of Golestan, Iran is considerabledifference between ACTUAL YIELD and ATTAINABLE YIELD which is called YIELD GAP. In recent years, this gap hasbeen impressive, and therefore, identifying SOYBEAN yield-limiting factors is essentially needed. Thepresent study was conducted based on CPA method in 73 fields of Kalaleh (Golestan, Iran) in 2016. Inthis study all information related about management practices, soil characteristics and farmer socioeconomicstatus were measured and recorded. Then, using stepwise regression, the relationship betweenvariables and yield was considered. The results showed that there is a 2606. 4 kg/ha difference (gap)between ACTUAL YIELD (average farmers' yield) and ATTAINABLE YIELD (maximum farmers' yield). It wasidentified that farming experience, burying plant residues in the soil, planting date, Sprinkler irrigation, the amount of used water and plant density were contributed to YIELD GAP, 30. 1, 5. 1, 14. 7, 13. 8, 13. 8 and22. 5%, respectively. It could be concluded that improving these factors will increase the yield up to1802. 9 kg/ha.

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APA: Copy

MANSOURI RAD, ALI, NAKHZARI MOGHADAM, ALI, SOLTANI, AFSHIN, RAHEMI KARIZAKI, ALI, & TORABI, BENYAMIN. (2018). IDENTIFYING SOYBEAN YIELD-LIMITING FACTORS BY USING COMPARATIVE PERFORMANCEANALYSIS (CASE STUDY: GOLESTAN PROVINCE – KALALEH). JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), 19(4 ), 1033-1046. SID. https://sid.ir/paper/209594/en

Vancouver: Copy

MANSOURI RAD ALI, NAKHZARI MOGHADAM ALI, SOLTANI AFSHIN, RAHEMI KARIZAKI ALI, TORABI BENYAMIN. IDENTIFYING SOYBEAN YIELD-LIMITING FACTORS BY USING COMPARATIVE PERFORMANCEANALYSIS (CASE STUDY: GOLESTAN PROVINCE – KALALEH). JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE)[Internet]. 2018;19(4 ):1033-1046. Available from: https://sid.ir/paper/209594/en

IEEE: Copy

ALI MANSOURI RAD, ALI NAKHZARI MOGHADAM, AFSHIN SOLTANI, ALI RAHEMI KARIZAKI, and BENYAMIN TORABI, “IDENTIFYING SOYBEAN YIELD-LIMITING FACTORS BY USING COMPARATIVE PERFORMANCEANALYSIS (CASE STUDY: GOLESTAN PROVINCE – KALALEH),” JOURNAL OF CROPS IMPROVEMENT (JOURNAL OF AGRICULTURE), vol. 19, no. 4 , pp. 1033–1046, 2018, [Online]. Available: https://sid.ir/paper/209594/en

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