Sunflower (Helianthus annuus L.) grain yield affected by fertilizer and plant density
Publish Year: 1400
نوع سند: مقاله ژورنالی
زبان: Persian
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شناسه ملی سند علمی:
JR_CAJPSI-1-2_005
تاریخ نمایه سازی: 9 مرداد 1400
Abstract:
In order to study the effect of fertilizer and crop density on some agronomic traits in sunflower, a field experiment was carried out as a split-plot based on randomized complete block design with three replications in the Agricultural Research Farm of Dasht-e-Naz in Sari, Iran. Main plots included four fertilizer treatments (N۰p ۰K۰, N۲۳p ۲۵K۲۵, N۴۶p ۵۰K۵۰ and N۶۹p ۷۵K۷۵) and sub-plots included four plant densities (D۵۰= ۵۰۰۰۰, D۶۰= ۶۰۰۰۰, D۷۰= ۷۰۰۰۰, and D۸۰= ۸۰۰۰۰ plant ha-۱). The results indicated that there was a significant difference in grain yield, biological yield, kernel, and oil yield (p < ۰.۰۱) and individual biological yield and the number of empty rows (p < ۰.۰۵) by plant density. There was a significant difference in grain kernel ratio (p < ۰.۰۵) by fertilizers. F۲ and F۱ had the maximum and minimum grain kernel ratio with ۷۷.۴۰ and ۷۶.۳۰%, respectively. D۵۰ and D۸۰ had the lowest and highest grain yield with ۵۶۶۶ and ۳۶۳۳ kg/ha, respectively. Biological yield in D۶۰ was the lowest but in D۸۰ was the highest with ۱۰۸۵۳ and ۱۶۴۶۰ kg/ha, respectively.D۶۰ and D۵۰ had the lowest and highest individual biological yield with ۱۸۰.۹۰ and ۲۲۵.۹۰ g/plant, respectively. The maximum and minimum grain yield was obtained in F۳ (۴۸۱۷ kg/ha) and F۲ (۳۹۶۸ kg/ha), respectively.
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Authors
Hamed Modanlo
Department of Agronomy, Rodehen Branch, Islamic Azad University, Rodehen, Iran.
Mehdi Baghi
Department of Agronomy, Rodehen Branch, Islamic Azad University, Rodehen, Iran.
Abbas Ghanbari Malidarreh
Department of Agronomy, Jouybar Branch, Islamic Azad University, Jouybar, Iran.
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