REGIONAL ESTIMATION OF RAINFED WHEAT YIELD BASED ON PRECIPITATION DATA

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GHORBANI KH.; KHALILI A.; IRANNEJAD P.

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Journal: AGRICULTURAL RESEARCH Year:2008 | Volume:8 | Issue:1 (A) Page(s): 89-101

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Information Journal Paper

Title

REGIONAL ESTIMATION OF RAINFED WHEAT YIELD BASED ON PRECIPITATION DATA

Author(s)

GHORBANI KH. | KHALILI A. | IRANNEJAD P. | Issue Writer Certificate

Keywords

RAINFED WHEAT YIELDQ3

FARM UNITSQ3

ISOHYTE MAPSQ3

GISQ3

GHAZVINQ3

Abstract

Severe varations of the weather condition can greatly affect crop yield. Many researches have been done to determine the role of different atmospheric variables on crop yield, from agrometeorological view point. These studies have resulted in relationships that are being used to predict the crop yield based on atmospheric data. In the present study, the effect of precipitation amount on RAINFED WHEAT YIELD is studied at FARM UNITS in an eleven years period between 1992 to 2002 in the province of GHAZVIN. The ISOHYTE MAPS of the region is produced, based on the daily precipitation data from all the meteorological stations. The land-use map of the region is, then, used in the GIS environment to estimate precipitation amount in each farm unit of different cities of the province. Precipitation amounts during different stages of the growing season of wheat were also estimated. This resulted in 76 precipitation variables. The correlation between the RAINFED WHEAT YIELD and verified 76 precipitation variables were tested. The results indicate that the precipitation variables which contain the total precipitation of the first six months of water year (October- March) and twenty days afterward, suggests the best correlation between the wheat yield and precipitation. Investigation shows that the variables which includes the total amount of precipitation during the first 6 month Agricultural year plus 20 days after make the highest correlation to demonstrate the variation of yield via precipitation.

Cites

INVESTIGATING THE EFFECT OF AGROCLIMATIC INDICES AND VARIABLES ON OPTIMUM WHEAT PERFORMANCE (CASE STUDY: HAMEDAN PROVINCE)

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APA: Copy

GHORBANI, KH., KHALILI, A., & IRANNEJAD, P.. (2008). REGIONAL ESTIMATION OF RAINFED WHEAT YIELD BASED ON PRECIPITATION DATA. AGRICULTURAL RESEARCH, 8(1 (A)), 89-101. SID. https://sid.ir/paper/84743/en

Vancouver: Copy

GHORBANI KH., KHALILI A., IRANNEJAD P.. REGIONAL ESTIMATION OF RAINFED WHEAT YIELD BASED ON PRECIPITATION DATA. AGRICULTURAL RESEARCH[Internet]. 2008;8(1 (A)):89-101. Available from: https://sid.ir/paper/84743/en

IEEE: Copy

KH. GHORBANI, A. KHALILI, and P. IRANNEJAD, “REGIONAL ESTIMATION OF RAINFED WHEAT YIELD BASED ON PRECIPITATION DATA,” AGRICULTURAL RESEARCH, vol. 8, no. 1 (A), pp. 89–101, 2008, [Online]. Available: https://sid.ir/paper/84743/en

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