NITROGEN AND PHOSPHORUS REQUIREMENTS OF DRYLAND SABALAN WHEAT UNDER RAINFED AND SUPPLEMENTAL IRRIGATION CONDITIONS

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FEIZIASL V.; VALI ZADEH GH.R.

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Journal: Iranian Journal of Crop Sciences Year:2001 | Volume:3 | Issue:4 Page(s): 16-28

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Title

NITROGEN AND PHOSPHORUS REQUIREMENTS OF DRYLAND SABALAN WHEAT UNDER RAINFED AND SUPPLEMENTAL IRRIGATION CONDITIONS

Author(s)

FEIZIASL V. | VALI ZADEH GH.R. | Issue Writer Certificate

Keywords

NITROGEN AND PHOSPHORUS REQUIRMENTSQ4

DRYLAND WHEATQ3

SUPPLEMENTAL IRRIGATIONQ3

Abstract

Wheat c.v. Sabalan nutrient requirement was estimated under rainfed and SUPPLEMENTAL IRRIGATION conditions. The experiment was conducted in RCBD (split plot factorial) design with three replications. Main plots included three levels of irrigation namely: I0 (rain fed), I1 (one irrigation at heading stage), and I2 (two irrigations at heading and milky stage). Subplots included fertilizer use in factorial combination, nitrogen levels of 0,60,120 kg N ha-1, and, phosphorus levels of 0 and 60 kg P205 ha-1. The experiment was carried for 4 years during 1992-1996 at Maragheh Dry land Station. Amount of water used in each irrigation was calculated based on moisture deficiency from F.C in 100 cm soil profile depth. Nitrogen was split applied as urea (1.2 at planting and 1/2 at first irrigation) and triple superphosphate was applied at planting time. Results showed that irrigation had significant effects on wheat grain, straw yield and T.K.W increase at the 1% probability level. Highest yield was obtained from I1 as 1843 kg ha-1. Decreasing soil moisture from F.C, increased the efficiency of SUPPLEMENTAL IRRIGATION. Regression equation showed that wheat nitrogen requirement in rain fed (I0) and SUPPLEMENTAL IRRIGATION (I1) was 48 and 63 kg N ha-1, respectively and phosphorus requirement in (I0) and (I1) was 20 and 28 kg P205 ha-I, respectively.

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APA: Copy

FEIZIASL, V., & VALI ZADEH, GH.R.. (2001). NITROGEN AND PHOSPHORUS REQUIREMENTS OF DRYLAND SABALAN WHEAT UNDER RAINFED AND SUPPLEMENTAL IRRIGATION CONDITIONS. IRANIAN JOURNAL OF CROP SCIENCES, 3(4), 16-28. SID. https://sid.ir/paper/57281/en

Vancouver: Copy

FEIZIASL V., VALI ZADEH GH.R.. NITROGEN AND PHOSPHORUS REQUIREMENTS OF DRYLAND SABALAN WHEAT UNDER RAINFED AND SUPPLEMENTAL IRRIGATION CONDITIONS. IRANIAN JOURNAL OF CROP SCIENCES[Internet]. 2001;3(4):16-28. Available from: https://sid.ir/paper/57281/en

IEEE: Copy

V. FEIZIASL, and GH.R. VALI ZADEH, “NITROGEN AND PHOSPHORUS REQUIREMENTS OF DRYLAND SABALAN WHEAT UNDER RAINFED AND SUPPLEMENTAL IRRIGATION CONDITIONS,” IRANIAN JOURNAL OF CROP SCIENCES, vol. 3, no. 4, pp. 16–28, 2001, [Online]. Available: https://sid.ir/paper/57281/en

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