EFFECTS OF VARIOUS SURFACE DRAINAGE SPACING AND DIFFERENT RATES OF NITROGEN FERTILIZER ON RAPESEED YIELD

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SALAHSHOUR DALIVAND F.; HOSSEINZADEH DALIR A.; FAKHERIFARD A.; NAZEMI A.H.; KAVOUSI SISI M.; YAZDANI M.R.

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Journal: JOURNAL OF AGRICULTURAL KNOWLEDGE Year:2006 | Volume:16 | Issue:3 Page(s): 13-21

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Title

EFFECTS OF VARIOUS SURFACE DRAINAGE SPACING AND DIFFERENT RATES OF NITROGEN FERTILIZER ON RAPESEED YIELD

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Keywords

DRAINAGEQ2

NITROGEN FERTILIZERQ3

RAPESEEDQ3

SOIL MOISTUREQ2

WATER TABLEQ3

Abstract

This field experiment was conducted in order to reduce undesirable flooding effects due to heavy and continuous rainfalls. DRAINAGE and NITROGEN FERTILIZER effects on RAPESEED yield in the paddy field at the north of Iran (Rice Research Institute, Rasht) were investigated. A split-plot design arranged in randomized complete blocks with three replications was employed using Hyola 308. Factors included three DRAINAGE levels (1- no drain, 2- surface drain with 2m spacing and average depth 15cm, 3- surface drain with 4m spacing and average depth of 15cm crossing with 1m spaced lateral ditches which were 7cm in depth) and four NITROGEN FERTILIZER levels (0, 150, 200 and 250 kg/ha N that was splitted as 1/3, 1/3, 1/3). The results indicated that although after each rain, drains with 2 and 4 m spacing could not reduce SOIL MOISTURE to the field capacity level, but increased grain yield to 97.8% and 94.3%, respectively due to improvement of soil condition. Meanwhile reduction in the SOIL MOISTURE was about 3% and 4.6% and decrease in WATER TABLE was approximately 30% and 21% with respect to no drain condition. On the other hand, using only minimum of 150 kg/ha N can reduce undesirable flooding effects and increases grain yield up to 67%. In general, considering all the phenomena involved in the paddy fields (environmental problems, soil conditions, operational suitability & costs) surface drain with 4m spacing along with NITROGEN FERTILIZER of at least 150 kg/ha N can be suggested.

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APA: Copy

SALAHSHOUR DALIVAND, F., HOSSEINZADEH DALIR, A., FAKHERIFARD, A., NAZEMI, A.H., KAVOUSI SISI, M., & YAZDANI, M.R.. (2006). EFFECTS OF VARIOUS SURFACE DRAINAGE SPACING AND DIFFERENT RATES OF NITROGEN FERTILIZER ON RAPESEED YIELD. JOURNAL OF AGRICULTURAL KNOWLEDGE, 16(3), 13-21. SID. https://sid.ir/paper/28823/en

Vancouver: Copy

SALAHSHOUR DALIVAND F., HOSSEINZADEH DALIR A., FAKHERIFARD A., NAZEMI A.H., KAVOUSI SISI M., YAZDANI M.R.. EFFECTS OF VARIOUS SURFACE DRAINAGE SPACING AND DIFFERENT RATES OF NITROGEN FERTILIZER ON RAPESEED YIELD. JOURNAL OF AGRICULTURAL KNOWLEDGE[Internet]. 2006;16(3):13-21. Available from: https://sid.ir/paper/28823/en

IEEE: Copy

F. SALAHSHOUR DALIVAND, A. HOSSEINZADEH DALIR, A. FAKHERIFARD, A.H. NAZEMI, M. KAVOUSI SISI, and M.R. YAZDANI, “EFFECTS OF VARIOUS SURFACE DRAINAGE SPACING AND DIFFERENT RATES OF NITROGEN FERTILIZER ON RAPESEED YIELD,” JOURNAL OF AGRICULTURAL KNOWLEDGE, vol. 16, no. 3, pp. 13–21, 2006, [Online]. Available: https://sid.ir/paper/28823/en

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