Department of Agriculture, University of Payam Noor, Qom, Iran
Key words: Planting pattern, Plant density, Zeoponix, Sunflower, yield and yield components.
An experiment was conducted to evaluate the effect of planting pattern, plant density and integration of zeoponix and chemical N fertilizer (urea) on sunflower yield and yield components. The experimental design was analyzed as factorial based on randomized complete block with three replications. Treatments consisted of 3 factors which are different crop densities, including 2 levels. The population of plants was including 5 plants m–2 (d1) and 8 plants m–2 (d2). The second factor was planting patterns which were included twin rectangular rows (A1) and twin zigzag rows (A2). Different fertilizing treatments were selected as third factor consisted of the sole application of zeoponix (f1) and chemical fertilizer urea (f3), and integration of 50%zeoponix +50% chemical fertilizer urea (f2), that were at 3 levels. Results showed that there were significant differences in interaction of planting pattern, plant density and fertilizing system on plant height, stalk diameter, biologic yield, seed yield, number of seeds per head, 1000 seed weight, seed oil content and oil yield, protein content and protein yield and harvest index. LSD test for means of these traits showed that zigzag arrangement × plant population of 8 plants m–2 × 100% zeoponix (a2d2f1) treatment had the best performance and could be recommended to farmers for sunflower cultivation.
Get the original articles in Source: Volume 7, Number 6, December 2015 – IJAAR
Published By: International Network for Natural Sciences
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