IRRIGATION SCHEDULING USING CROP CANOPY-AIR TEMPERATURE DIFFERENCE FOR SPRING CORN IN NORTH OF KHUZESTAN

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BOROUMANDNASAB S.; TAHERI GHANNAD S.; MOAEIRI M.

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Paper Information

Journal: THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA) Year:2005 | Volume:27 | Issue:(Special Issue of Water Science Engineering) Page(s): 47-56

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Information Journal Paper

Title

IRRIGATION SCHEDULING USING CROP CANOPY-AIR TEMPERATURE DIFFERENCE FOR SPRING CORN IN NORTH OF KHUZESTAN

Author(s)

BOROUMANDNASAB S. | TAHERI GHANNAD S. | MOAEIRI M. | Issue Writer Certificate

Keywords

INFRARED THERMOMETERQ4

CROP WATER STRESS INDEXQ4

CORNQ4

CROP CANOPY TEMPERATUREQ4

Abstract

One of the most effective factors which restricts the crop yeild is environmental stress. Previous studies show that with an optimal irrigation programing, e.g., using CROP CANOPY TEMPERATURE, the negative effects of these stresses can be decreased to a considerable degree.The current study intends to investigate water stress and irrigation planning of the spring CORN (hybrid SC704) in year 2002. Different irrigation regimes were planned on the basis of cumulative evaporation from Class A of the evaporation pan. Irrigation was carried out in five treatments 50, 70, 90, 110 and 130 of cumulative evaporation. The experiments were conducted in Dezful Agricultural Research Center, in a completely randomized blocks design, and pour replications.Crop water stress index was calculated using Idso and Jackson methods along with the parameters measured both before and after the irrigation in growing season.The obtained results showed a good linear relationship between these two methods (CWSIj =1.037CWSIj - .054) with a correlation coefficient of R2=0.999.A good linear equation was also developed using the least square method between the grain yield and the CROP WATER STRESS INDEX (Jackson method) in the form of Ys =-10.925 CWSIj +13.196 with a correlation coefficient of R2=0.99.This equation may be applied to predict the CORN grain yield using the measured CWSI. Another equation was also developed, in which the, relative humidity received solar radiation, depleted soil moisture from the root zoon, and wind speed were related to the canopy-air temperature difference.

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APA: Copy

BOROUMANDNASAB, S., TAHERI GHANNAD, S., & MOAEIRI, M.. (2005). IRRIGATION SCHEDULING USING CROP CANOPY-AIR TEMPERATURE DIFFERENCE FOR SPRING CORN IN NORTH OF KHUZESTAN. THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), 27((Special Issue of Water Science Engineering)), 47-56. SID. https://sid.ir/paper/24661/en

Vancouver: Copy

BOROUMANDNASAB S., TAHERI GHANNAD S., MOAEIRI M.. IRRIGATION SCHEDULING USING CROP CANOPY-AIR TEMPERATURE DIFFERENCE FOR SPRING CORN IN NORTH OF KHUZESTAN. THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA)[Internet]. 2005;27((Special Issue of Water Science Engineering)):47-56. Available from: https://sid.ir/paper/24661/en

IEEE: Copy

S. BOROUMANDNASAB, S. TAHERI GHANNAD, and M. MOAEIRI, “IRRIGATION SCHEDULING USING CROP CANOPY-AIR TEMPERATURE DIFFERENCE FOR SPRING CORN IN NORTH OF KHUZESTAN,” THE SCIENTIFIC JOURNAL OF AGRICULTURE (SJA), vol. 27, no. (Special Issue of Water Science Engineering), pp. 47–56, 2005, [Online]. Available: https://sid.ir/paper/24661/en

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