STUDY THE EFFECTS OF NITROGEN FERTILIZER RATES AND SPLIT APPLICATION ON YIELD AND YIELD COMPONENTS OF DIFFERENT RICE (ORYZA SATIVA L.) CULTIVARS

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KAZEMI POSHT MOUSAVI H.; PIRDASHTI H.A.; BAHMANYAR M.A.; NASIRI M.

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Journal: Year:2007 | Volume:20 | Issue:2 (75 IN AGRONOMY AND HORTICULTURE) Page(s): 68-77

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Title

STUDY THE EFFECTS OF NITROGEN FERTILIZER RATES AND SPLIT APPLICATION ON YIELD AND YIELD COMPONENTS OF DIFFERENT RICE (ORYZA SATIVA L.) CULTIVARS

Author(s)

KAZEMI POSHT MOUSAVI H. | PIRDASHTI H.A. | BAHMANYAR M.A. | NASIRI M. | Issue Writer Certificate

Keywords

NITROGEN FERTILIZERQ2

SPLIT APPLICATIONQ2

YIELDQ2

YIELD COMPONENTSQ2

RICE CULTIVARSQ2

Abstract

In order to study the effects of NITROGEN FERTILIZER rates and SPLIT APPLICATION on YIELD and YIELD components of different RICE CULTIVARS, a field experiment was carried out in the Rice Research Institute of Iran–Deputy of Mazandaran (Amol) – during 2005. A split – split plot experiment in the basis of randomized complete block design with 3 replications and 3 factors including fertilizer rate (100, 150, 200 kg.ha-1), fertilizer SPLIT APPLICATION (in variable ratios in transplanting, tillering and heading stages including S1 (50%, 25% and 25%) S2 (25%, 50% and 25%) and S3 (25%, 25% and 50%) as sub plot and cultivar (Tarom, Shafagh and Hybrid GRH1) as sub sub plot were used. Results showed that the rates of NITROGEN FERTILIZER had significant effect on grain YIELD, grain number per panicle, filled grain number per panicle, harvest index, fertile tillers number and biomass. Meanwhile cultivars had significant effects in the all mentioned traits. Also, different levels of nitrogen SPLIT APPLICATION have not significant effects except of biomass. In general, among cultivars, Shafagh had the highest grain YIELD, while hybrid cultivar because of the high unfilled grain per panicle had less grain YIELD than Shafagh, however traits such as fertile tiller number and grain number per panicle were more in hybrid rice than two other cultivars. The lowest of YIELD was obtained in Tarom cultivar. Among the mentioned traits, harvest index and grain number per panicle had the highest correlation with grain YIELD. Interaction effect between SPLIT APPLICATION and cultivar was significant at 1% probability levels for YIELD, biomass and unfilled grain traits in which the highest YIELD was belong to the first SPLIT APPLICATION and Shafagh cultivar.

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APA: Copy

KAZEMI POSHT MOUSAVI, H., PIRDASHTI, H.A., BAHMANYAR, M.A., & NASIRI, M.. (2007). STUDY THE EFFECTS OF NITROGEN FERTILIZER RATES AND SPLIT APPLICATION ON YIELD AND YIELD COMPONENTS OF DIFFERENT RICE (ORYZA SATIVA L.) CULTIVARS . PAJOUHESH-VA-SAZANDEGI, 20(2 (75 IN AGRONOMY AND HORTICULTURE)), 68-77. SID. https://sid.ir/paper/19339/en

Vancouver: Copy

KAZEMI POSHT MOUSAVI H., PIRDASHTI H.A., BAHMANYAR M.A., NASIRI M.. STUDY THE EFFECTS OF NITROGEN FERTILIZER RATES AND SPLIT APPLICATION ON YIELD AND YIELD COMPONENTS OF DIFFERENT RICE (ORYZA SATIVA L.) CULTIVARS . PAJOUHESH-VA-SAZANDEGI[Internet]. 2007;20(2 (75 IN AGRONOMY AND HORTICULTURE)):68-77. Available from: https://sid.ir/paper/19339/en

IEEE: Copy

H. KAZEMI POSHT MOUSAVI, H.A. PIRDASHTI, M.A. BAHMANYAR, and M. NASIRI, “STUDY THE EFFECTS OF NITROGEN FERTILIZER RATES AND SPLIT APPLICATION ON YIELD AND YIELD COMPONENTS OF DIFFERENT RICE (ORYZA SATIVA L.) CULTIVARS ,” PAJOUHESH-VA-SAZANDEGI, vol. 20, no. 2 (75 IN AGRONOMY AND HORTICULTURE), pp. 68–77, 2007, [Online]. Available: https://sid.ir/paper/19339/en

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