THE EFFECT OF DIFFERENT N- MANAGEMENT ON GRAIN YIELD OF RICE

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VASEGHI S.; VALYNEZHAD M.; MOHAMMADIAN M.

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

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Paper Information

Journal: PLANT AND ECOSYSTEM Year:2011 | Volume:7 | Issue:27-2 (SUPPLEMENT) Page(s): 101-111

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Information Journal Paper

Title

THE EFFECT OF DIFFERENT N- MANAGEMENT ON GRAIN YIELD OF RICE

Author(s)

VASEGHI S. | VALYNEZHAD M. | MOHAMMADIAN M. | Issue Writer Certificate

Keywords

NITROGENQ2

RICEQ3

LCCQ2

SPLITQ2

Abstract

The magnitude and nature of N losses vary depending on the timing, rate and method of N application, source of N fertilizer, soil chemical and physical properties, climate conditions and crop status. In general, ammonia volatilization is the major pathway of N loss in irrigated RICE.Since the plant growth reflects the total N supply from all sources, plant N status will be a good indicator of N availability to crops at any given time. Leaf colour chart (LCC) is simple portable diagnostic tool, to determine the timing of N top dressing. Field experiments were carried out to compare the effect of N SPLIT application and LCC on the grain yield of Fajr variety in 2009. A randomized complete block design with three replications and twelve treatments (LCC management and different N rate of 45, 90, 135 kg N per hectar with three timing application. All treatments showed significant grain yield increase relative to zero-N control in three fields. Yield increase was shown up to 135 kgN/ha because of low N supplying content. Grain yield of LCC treatments were higher than SPLIT treatments. As a result LCC treatments indicated that N management based on LCC shade 5 helped avoid over application of N to RICE in fajr variety.

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APA: Copy

VASEGHI, S., VALYNEZHAD, M., & MOHAMMADIAN, M.. (2011). THE EFFECT OF DIFFERENT N- MANAGEMENT ON GRAIN YIELD OF RICE. PLANT AND ECOSYSTEM, 7(27-2 (SUPPLEMENT)), 101-111. SID. https://sid.ir/paper/145271/en

Vancouver: Copy

VASEGHI S., VALYNEZHAD M., MOHAMMADIAN M.. THE EFFECT OF DIFFERENT N- MANAGEMENT ON GRAIN YIELD OF RICE. PLANT AND ECOSYSTEM[Internet]. 2011;7(27-2 (SUPPLEMENT)):101-111. Available from: https://sid.ir/paper/145271/en

IEEE: Copy

S. VASEGHI, M. VALYNEZHAD, and M. MOHAMMADIAN, “THE EFFECT OF DIFFERENT N- MANAGEMENT ON GRAIN YIELD OF RICE,” PLANT AND ECOSYSTEM, vol. 7, no. 27-2 (SUPPLEMENT), pp. 101–111, 2011, [Online]. Available: https://sid.ir/paper/145271/en

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