THE EFFECT OF DEFICIT IRRIGATION IN LEVELS OF NITROGEN FERTILIZER ON WHEAT YIELD AND YIELD COMPONENTS AND WATER CONSUMPTION REDUCTION

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ASAREH A.

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Journal: CROP PHYSIOLOGY Year:2012 | Volume:4 | Issue:13 Page(s): 115-125

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Title

THE EFFECT OF DEFICIT IRRIGATION IN LEVELS OF NITROGEN FERTILIZER ON WHEAT YIELD AND YIELD COMPONENTS AND WATER CONSUMPTION REDUCTION

Author(s)

ASAREH A. | Issue Writer Certificate

Keywords

WHEATQ3

DROUGHT STRESSQ2

IRRIGATION HOLDINGQ2

NITROGEN FERTILIZERQ2

Abstract

Due to the limited water resources in agriculture, applying any strategy to saving water is very important. One of these strategies is Deficit Irrigation. The purpose of this study is evaluation of DROUGHT STRESS as water holding on yield and yield components of WHEAT Chamran cultivar at different levels of NITROGEN FERTILIZER and determine strategies to achieve efficient increase of water resources consumpation. This research in 2007-2008 cropping year in the field of Agricultural Research Center of Ahwaz in three irrigation treatments I1 (without stress), I2 (irrigation holding at heading stage) and I3 (Irrigation holding at grain milk stage) and five nitrogen levels N1 without fertilizer, N2= 40, N3= 80, N4= 120 and N5=160 kg N ha was investigated. The experiment conducted as split-plot randomized complete block design with three replications. Results showed that I1 treatment with LAI 7.37 the highest and I2 treatment with LAI 6.27 allocated to the lowest. The I1 treatment with 1828.5 g/m2 produced the highest and I2 treatment with 1368 g/m2 the lowest value dry matter. The results of analysis of variance showed that irrigation treatments on total dry matter, grain yield, straw yield, harvest index, 1000-seed weight, ear number per square meter and number of grains per spike was significant at 1% level, but the amount was not significant on Krvfyl amount of flag leaf. The nitrogen treatments on total dry matter, grain yield, straw yield, harvest index, seed -1000 grain weight, number of grains per spike, spike number per square meter and the rate of Krvfyl flag leaf was significant at 1% level. So treatment I3 with a yield of 48.11 g grain m2 per intake of one cubic meter of water, had the most economical efficiency and treatments I1 and I2 with efficiencies, respectively, 47.02 and 42.38 grams m2 grains per intake of one cubic meter of water were placed in the next categories with significant difference from each other at 5% level.

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APA: Copy

ASAREH, A.. (2012). THE EFFECT OF DEFICIT IRRIGATION IN LEVELS OF NITROGEN FERTILIZER ON WHEAT YIELD AND YIELD COMPONENTS AND WATER CONSUMPTION REDUCTION. CROP PHYSIOLOGY, 4(13), 115-125. SID. https://sid.ir/paper/174463/en

Vancouver: Copy

ASAREH A.. THE EFFECT OF DEFICIT IRRIGATION IN LEVELS OF NITROGEN FERTILIZER ON WHEAT YIELD AND YIELD COMPONENTS AND WATER CONSUMPTION REDUCTION. CROP PHYSIOLOGY[Internet]. 2012;4(13):115-125. Available from: https://sid.ir/paper/174463/en

IEEE: Copy

A. ASAREH, “THE EFFECT OF DEFICIT IRRIGATION IN LEVELS OF NITROGEN FERTILIZER ON WHEAT YIELD AND YIELD COMPONENTS AND WATER CONSUMPTION REDUCTION,” CROP PHYSIOLOGY, vol. 4, no. 13, pp. 115–125, 2012, [Online]. Available: https://sid.ir/paper/174463/en

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