EFFECT OF PLANT DENSITY AND NITROGEN FERTILIZER MANAGEMENT ON AGRONOMICAL CHARACTERISTICS OF SAFFLOWER UNDER WEED COMPETITION

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FULADVAND M.; YADAVI A.R.; MOVAHEDI DEHNAVI M.

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Journal: Crop Production Year:2014 | Volume:7 | Issue:3 Page(s): 163-181

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Information Journal Paper

Title

EFFECT OF PLANT DENSITY AND NITROGEN FERTILIZER MANAGEMENT ON AGRONOMICAL CHARACTERISTICS OF SAFFLOWER UNDER WEED COMPETITION

Author(s)

FULADVAND M. | YADAVI A.R. | MOVAHEDI DEHNAVI M. | Issue Writer Certificate

Keywords

SPLIT FERTILIZERQ2

WEED INTERFERENCEQ2

YIELDQ2

YIELD COMPONENTSQ2

Abstract

In order to evaluation of plant density, rate and split application method of nitrogen fertilizer on YIELD and YIELD components of safflower (Sofeh variety) under weed competition a field experiment was carried out as a factorial based on randomized complete block design with three replications in Yasouj university field research in summer 2013. First factor was plant density with two levels (20 and 40 plants m-2) and second factor was nitrogen application rate on nine levels that included; non nitrogen application and 75 and 150 kg N ha-1 nitrogen application with four split methods. Split methods were included; S1(50% in preplanning stage - 50% in stem elongation stage), S2 (25% in preplanting stage - 75% in stem elongation stage), S3(25% in pre planting stage - 50% in stem elongation stage -25% in flowering stage) and S4 (25% in pre planting stage - 25% in stem elongation stage - 25% in flowering stage). Results showed that the most fertile heads number (296 head m-2) and highest grain YIELD (2314.17 Kg ha-1) was obtained from highest plant density (40 plant m-2) and highest level of nitrogen application (150 Kg N ha-1) with split level S4. In addition, that low plant density and high nitrogen level application caused higher weed dry weight. However, in high nitrogen level application, the lowest weed dry weight was achieved from S4 method of nitrogen application.

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APA: Copy

FULADVAND, M., YADAVI, A.R., & MOVAHEDI DEHNAVI, M.. (2014). EFFECT OF PLANT DENSITY AND NITROGEN FERTILIZER MANAGEMENT ON AGRONOMICAL CHARACTERISTICS OF SAFFLOWER UNDER WEED COMPETITION. ELECTRONIC JOURNAL OF CROP PRODUCTION, 7(3), 163-181. SID. https://sid.ir/paper/135088/en

Vancouver: Copy

FULADVAND M., YADAVI A.R., MOVAHEDI DEHNAVI M.. EFFECT OF PLANT DENSITY AND NITROGEN FERTILIZER MANAGEMENT ON AGRONOMICAL CHARACTERISTICS OF SAFFLOWER UNDER WEED COMPETITION. ELECTRONIC JOURNAL OF CROP PRODUCTION[Internet]. 2014;7(3):163-181. Available from: https://sid.ir/paper/135088/en

IEEE: Copy

M. FULADVAND, A.R. YADAVI, and M. MOVAHEDI DEHNAVI, “EFFECT OF PLANT DENSITY AND NITROGEN FERTILIZER MANAGEMENT ON AGRONOMICAL CHARACTERISTICS OF SAFFLOWER UNDER WEED COMPETITION,” ELECTRONIC JOURNAL OF CROP PRODUCTION, vol. 7, no. 3, pp. 163–181, 2014, [Online]. Available: https://sid.ir/paper/135088/en

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