The effect of the date of plant, Grain density and the level of nitrogen on the qualitative and quantitative performance of spring safflowers
Subject Areas : New Finding in Agriculture
H. Tahmasebizadeh
1
(Young Researcher and Elite Club, Arak Branch, Islamic Azad University, Arak, Iran)
I. Farahani
2
(Young Researcher and Elite Club, Arak Branch, Islamic Azad University, Arak, Iran)
Keywords: nitrogen, Plant density, Spring safflower, date of cultivation, grain performance, oil performance,
Abstract :
The effect of the date of planting, plant density, and the various of level of nitrogen on the quantitative and qualitative performance of spring safflower were investigated in the The experiment was conducted based on split-plot factorial in a randomized complete block on the 4 repetitions. Treatment includes to dates as a delayed cultivation: 20 May and 20 June . we used different level of nitrogen include 138, 92 and 46 Kg. Nitrogen is source of urea . Plan density were 400 and 800 thousands plants per hectare. The highest grain yield is 1301 kg ; and the maximum yield is 3101kg on the June 20. Our results show that we have better performance on May 20 because of better use of environmental conditions. The best time for delayed cultivation on the May 20th in Arak. Density have significant effect on the safflower’s performance. According to our results, the density of 800 thousands in per hectare has direct effect on the performance of the safflower compared to the 400 thousands in per hectare.
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