Effect of irrigation methods and nutrient stratification on yield and yield components of rice cultivar “ Keshvari”

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SEDAGHAT N.; BIABANI A.; SABORI H.; NASIRI M.; FALLAH A.

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Journal: Crop Production Year:2019 | Volume:11 | Issue:4 Page(s): 27-40

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Title

Effect of irrigation methods and nutrient stratification on yield and yield components of rice cultivar “ Keshvari”

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RiceQ2

irrigation methodsQ3

yield and yield componentsQ3

Abstract

Background and objectives: Water management in agriculture and Rice cultivation can greatly reduce the constraints and problems caused by water scarcity. Irrigation has a significant role in Rice yield and Rice yield components, and any water stress reduces filling percentages Grain and eventually reduce grain yield. Regarding recent droughts, lack of water resources at the country level, inadequate water in different stages of Rice growth and, finally, reduction of Rice yield, it is necessary to have proper planning, suitable irrigation management from existing sources and nutrient foliar application, to maximize resources efficiency and achieve optimal yield. This experiment was conducted to evaluate the effect of different irrigation methods on yield and yield components of Rice (Oryza sativa L. ) an experiment was conducted at Rice Research Institute of Iran (Mazandaran-Amol) in 2017. Materials and methods: This study was conducted as split plotbased on randomized complete block design with three replications on the Keshvari Rice cultivar. Treatments included different methods of irrigationat three levels (flushing, wet and drying and saturation)as the main factor and nutrient foliar application with five per thousand concentration in six levels (water, nitrogen, nitrogen + potassium, nitrogen + potassium + zinc, nitrogen + potassium + zinc + boron and nitrogen + potassium + zinc + boron + molybdenum)as a sub-factor. Results: The results of ANOVA indicated that the irrigation factor had significant effect on grain yield and biological yield at 1% level and did not have significant effect on other traits. Foliar application factor did not have significant effect on traits. The interaction effect of irrigation and fertilizer was significant based on paddy yield in 5% probability level and in terms of biological yield was significant at 1% level and there is not observed significant effect on other traits. The interactions of two irrigation and fertilizer treatments showed that the highest yield of Rice with an average of 7284 Kg ha-1 and the lowest with average 4690 Kg ha-1, respectively, was related to watering irrigation under nitrogen + potassium spraying and irrigation and drying with water spraying conditions. Conclusion: In general, the results of this experiment showed that the paddy yield in saturated irrigation increased by 1. 15% and in AWD irrigation decreased 11. 85% compared to traditional flooding irrigation. Water saving in AWD irrigation and saturation were 26. 4% and 9. 9%, respectively, compared to waterlogging irrigation. The highest grain yield was obtained in N + K combination fertilizer application in saturated irrigation. Considering the results of this research, wet and drying irrigation method and saturation methods based on preference could be applied in Rice irrigation in condition similar to this research.

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APA: Copy

SEDAGHAT, N., BIABANI, A., SABORI, H., NASIRI, M., & FALLAH, A.. (2019). Effect of irrigation methods and nutrient stratification on yield and yield components of rice cultivar “ Keshvari”. ELECTRONIC JOURNAL OF CROP PRODUCTION, 11(4 ), 27-40. SID. https://sid.ir/paper/359844/en

Vancouver: Copy

SEDAGHAT N., BIABANI A., SABORI H., NASIRI M., FALLAH A.. Effect of irrigation methods and nutrient stratification on yield and yield components of rice cultivar “ Keshvari”. ELECTRONIC JOURNAL OF CROP PRODUCTION[Internet]. 2019;11(4 ):27-40. Available from: https://sid.ir/paper/359844/en

IEEE: Copy

N. SEDAGHAT, A. BIABANI, H. SABORI, M. NASIRI, and A. FALLAH, “Effect of irrigation methods and nutrient stratification on yield and yield components of rice cultivar “ Keshvari”,” ELECTRONIC JOURNAL OF CROP PRODUCTION, vol. 11, no. 4 , pp. 27–40, 2019, [Online]. Available: https://sid.ir/paper/359844/en

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