Effect of irrigation cut-off and different nutritional systems on yield and yield components of spring safflower in Yasouj region

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MAGHSOUDI E.; YADAVI A.; MOVAHEDI DEHNAVI M.; BALOUCHI H.

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Journal: Crop Production Year:2018 | Volume:11 | Issue:1 Page(s): 101-112

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Title

Effect of irrigation cut-off and different nutritional systems on yield and yield components of spring safflower in Yasouj region

Author(s)

MAGHSOUDI E. | YADAVI A. | MOVAHEDI DEHNAVI M. | BALOUCHI H. | Issue Writer Certificate

Keywords

Irrigation cut-offQ2

Nutritional systemQ1

Organic manureQ2

Soil fertilityQ2

Water use efficiencyQ1

Abstract

Background and objectives: Lack of water is one of the main factors in the reduction of agricultural production in arid and semi-arid regions of the world. Nitrogen is one of the most important nutrients and key factor in achievement to favorable yield in crops. Organic sourceses in combination with chemical fertilizer can lead to Soil fertility and increase crop production. Thus it seems necessary investigate the effect of different Nutritional systems (Organic, chemical and integrated) and Irrigation cut-off on yield and yield components of safflower. Materials and methods: The experiment was done on spring safflower (Isfahan-14 cultivar) as split-plots arranged in a randomized completed block design with three replications. The main plot were including irrigation at the four levels (S0: full irrigation, S1: Irrigation cut-off at the stem elongation stage, S2: Irrigation cut-off at the flowering and anthesis stage and S3: Irrigation cut-off at the grain filling stage) and subplot including different Nutritional systems in the six levels (N0: no fertilizer, N1: 100 kg pure nitrogen from urea, N2: 75 kg pure nitrogen from urea+25 kg nitrogen from Organic manure, N3: 50 kg pure nitrogen from urea+50 kg nitrogen from Organic manure, N4: 25 kg pure nitrogen from urea+75 kg nitrogen from Organic manure and N5: 100 kg nitrogen from Organic manure) (Organic manure was used poultry manure). This experiment was measured LAI, yield, yield components and Water use efficiency. Results: The obtained results indicated that Irrigation cut-off at different growth stages had significant effect on measured traits; so at Irrigation cut-off at the flowering and anthesis stage, number of fill grain per head than full irrigation treatment decreased 21. 5 percent. Also yield and yield components at integrated Nutritional systems were more than chemical and organic Nutritional systems. The highest grain yield at S0, S1, S2, S3 treatments was obtained from integrated Nutritional systems of N2 (4291. 7 kg ha-1), N3 (3211. 7 kg ha-1), N2 (2653. 3 kg ha-1) and N2 (3603. 4 kg ha-1), respectively. The Water use efficiency at the S1 and S3 treatments in the all Nutritional systems was higher than S2 treatment. Conclusion: Use of Organic manures in combined with chemical fertilizers by reducing the effects of drought stress led to improvement yield and yield components of safflower under Irrigation cut-off conditions. Therefore grain yield at S3 treatment in different Nutritional systems of N2 and N3 was similar treatment of full irrigation and chemical Nutritional system. Based on result yield reduction by Irrigation cut-off at grain filling stage could be compensated by application of integrated Nutritional systems.

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APA: Copy

MAGHSOUDI, E., YADAVI, A., MOVAHEDI DEHNAVI, M., & BALOUCHI, H.. (2018). Effect of irrigation cut-off and different nutritional systems on yield and yield components of spring safflower in Yasouj region. ELECTRONIC JOURNAL OF CROP PRODUCTION, 11(1 ), 101-112. SID. https://sid.ir/paper/375875/en

Vancouver: Copy

MAGHSOUDI E., YADAVI A., MOVAHEDI DEHNAVI M., BALOUCHI H.. Effect of irrigation cut-off and different nutritional systems on yield and yield components of spring safflower in Yasouj region. ELECTRONIC JOURNAL OF CROP PRODUCTION[Internet]. 2018;11(1 ):101-112. Available from: https://sid.ir/paper/375875/en

IEEE: Copy

E. MAGHSOUDI, A. YADAVI, M. MOVAHEDI DEHNAVI, and H. BALOUCHI, “Effect of irrigation cut-off and different nutritional systems on yield and yield components of spring safflower in Yasouj region,” ELECTRONIC JOURNAL OF CROP PRODUCTION, vol. 11, no. 1 , pp. 101–112, 2018, [Online]. Available: https://sid.ir/paper/375875/en

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