EVALUATION OF DISTRIBUTION UNIFORMITY AND NITRATE LOSSES IN FURROW FERTIGATION

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ALIZADEH H.A.; ABBASI F.; LIAGHAT A.

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Journal: Journal of Water and Soil Science Year:2010 | Volume:14 | Issue:51 Page(s): 45-55

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Title

EVALUATION OF DISTRIBUTION UNIFORMITY AND NITRATE LOSSES IN FURROW FERTIGATION

Author(s)

ALIZADEH H.A. | ABBASI F. | LIAGHAT A. | Issue Writer Certificate

Keywords

FERTIGATIONQ2

DISTRIBUTION UNIFORMITYQ3

FURROW IRRIGATIONQ3

Abstract

The application of N fertilizers with surface irrigation stream (surface N FERTIGATION( is a key approach for fertilizer management. The main objective of this study was to investigate furrow FERTIGATION management effects on DISTRIBUTION UNIFORMITY and runoff losses of nitrate in field scale. A field corn experiment was carried out with a complete randomized block design having 12 experiments. The field experiments were carried out in free draining furrows having 165 m length and 0.006 m/m slope in Karaj. Required urea fertilizer was applied in four stages: before planting, in seven leaves stage, shooting stage and earring stage. The first stage was accomplished by traditional method and other stages were applied with irrigation water (FERTIGATION). FERTIGATION timing was respectively 60, 35, and 20 min in the three FERTIGATION stages. Results showed that DISTRIBUTION UNIFORMITY of water and fertilizer of low half (DULH) provided high values for all experiments. DULH ranged between 88.0 to 99.0% and 89.7 to 96.0%, respectively for water and fertilizer. Also, DISTRIBUTION UNIFORMITY of low quarter (DULQ) ranged between 86.0 to 98.2% and 85.7 to 91.5%, respectively for water and fertilizer. Nitrate losses through surface runoff ranged between 5.7 to 42.0%. Duncan test results for comparison between different experiments showed that there was significant difference (p=0.95) between fertilizer losses at the level of fertilizer injection time of 60 and 35 minutes, but there was no significant difference between levels of 35 and 20 minutes.

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APA: Copy

ALIZADEH, H.A., ABBASI, F., & LIAGHAT, A.. (2010). EVALUATION OF DISTRIBUTION UNIFORMITY AND NITRATE LOSSES IN FURROW FERTIGATION. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 14(51), 45-55. SID. https://sid.ir/paper/14872/en

Vancouver: Copy

ALIZADEH H.A., ABBASI F., LIAGHAT A.. EVALUATION OF DISTRIBUTION UNIFORMITY AND NITRATE LOSSES IN FURROW FERTIGATION. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2010;14(51):45-55. Available from: https://sid.ir/paper/14872/en

IEEE: Copy

H.A. ALIZADEH, F. ABBASI, and A. LIAGHAT, “EVALUATION OF DISTRIBUTION UNIFORMITY AND NITRATE LOSSES IN FURROW FERTIGATION,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 14, no. 51, pp. 45–55, 2010, [Online]. Available: https://sid.ir/paper/14872/en

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