EFFECT OF NITROGEN FERTILIZING MANAGEMENT ON RICE (CV. KHAZAR) YIELD AND ITS COMPONENTS IN A PADDY SOIL OF GUILAN PROVINCE

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ALI ABBASI H.R.; ESFAHANI M.; RABIEI B.; KAVOUSI SISI M.

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Journal: Journal of Water and Soil Science Year:2007 | Volume:10 | Issue:4 (B) Page(s): 293-307

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Title

EFFECT OF NITROGEN FERTILIZING MANAGEMENT ON RICE (CV. KHAZAR) YIELD AND ITS COMPONENTS IN A PADDY SOIL OF GUILAN PROVINCE

Author(s)

ALI ABBASI H.R. | ESFAHANI M. | RABIEI B. | KAVOUSI SISI M. | Issue Writer Certificate

Keywords

RICE (ORYZA SATIVA L.)Q3

SPLIT APPLICATION OF NITROGEN FERTILIZERQ3

YIELDQ2

YIELD COMPONENTSQ3

Abstract

Effect of nitrogen (N) fertilizer levels and its split applications on YIELD and YIELD components of rice (Oryza sativa L.) Cv. Khazar was investigated in a completely randomized block design with 3 replications in a paddy light soil at Guilan province, Iran, 2003. In this experiment, six treatments including: T1-control (no N fertilizer); T2- 40 kg/ha N (at transplanting time); T3- 80 kg/ha N (at transplanting, and tillering times); T4- 80 kg/ha N (at transplanting, tillering, and panicle initiation times); T5- 120 kg/ha N (at transplanting, and tillering times); and T6- 120 kg/ha N (at transplanting, tillering, and panicle initiation times) were compared. Results showed that the highest fertile tiller number was obtained in the fifth and sixth treatments with double and triple split applications of 120 kg/h N (236 and 248 m-2). The highest fertile filled spike lets percentage (84.8%), 1000-grain weight (26.1 g) and grain YIELD (4.83 t/ha) belonged to the sixth treatment, but grain YIELD and 1000-grain weight were not significantly different in the fourth and sixth treatments with three fertilizing times. This finding may have resulted from the third topdressing application of nitrogen fertilizer in panicle initiation and higher leaf area (44.8 and 45.5 Cm2), leaf greenness (39.4 and 39.9) and leaf nitrogen concentration (31.2 and 33.6 g/kg) during grain filling in the fourth and sixth treatments. Regression analysis also showed that flag leaf greenness (SPAD values at 5 days after flowering) and flag leaf area accounted for about 75% and 78% changes in YIELD, respectively. In conclusion, triple split application of 80 kgN/ha could be suggested for rice Cv. Khazar in these regions since the YIELD would be the same as the application of 120 Kg/ha N.

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APA: Copy

ALI ABBASI, H.R., ESFAHANI, M., RABIEI, B., & KAVOUSI SISI, M.. (2007). EFFECT OF NITROGEN FERTILIZING MANAGEMENT ON RICE (CV. KHAZAR) YIELD AND ITS COMPONENTS IN A PADDY SOIL OF GUILAN PROVINCE. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 10(4 (B)), 293-307. SID. https://sid.ir/paper/15104/en

Vancouver: Copy

ALI ABBASI H.R., ESFAHANI M., RABIEI B., KAVOUSI SISI M.. EFFECT OF NITROGEN FERTILIZING MANAGEMENT ON RICE (CV. KHAZAR) YIELD AND ITS COMPONENTS IN A PADDY SOIL OF GUILAN PROVINCE. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2007;10(4 (B)):293-307. Available from: https://sid.ir/paper/15104/en

IEEE: Copy

H.R. ALI ABBASI, M. ESFAHANI, B. RABIEI, and M. KAVOUSI SISI, “EFFECT OF NITROGEN FERTILIZING MANAGEMENT ON RICE (CV. KHAZAR) YIELD AND ITS COMPONENTS IN A PADDY SOIL OF GUILAN PROVINCE,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 10, no. 4 (B), pp. 293–307, 2007, [Online]. Available: https://sid.ir/paper/15104/en

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