Effect of different level of nitrogen fertilizers and plant spacing in growth characters and yield of egg plant

Abstract

This study was conducted to study the effect of different level of nitrogen fertilizer and plant spacing in growth characteries and yield componence of egg plant in Al- Saklawia in Al-Anbar governor during the growing season 2004. Nitrogen levels were 0 , 40 , 80 and 120kg N/ Donnum and with spacing of 40 , 80 , 120 cm. The experimental design was R.C.B.D. with 3 replicate. The treatment (120 kg N/ Donnum) significantly increased, plant height, dry weight (gm) at a rate of 53.39 % and 63.03% respectively as compared with the control, while the treatment with (40 kg N/ Donnum) significantly increased number of branches / plant at a rate of 38.06%. There are no significant effect of plant spacing on vegetative growth except as noticeable increases on plant height (cm) number of branches / plant dry weight at a rate of 0.03%, 1.45%, 4.9% respectively.The effect of different level of nitrogen fertilizer upon the yield and yield componences was shown that the treatment with 120kg N/ Donnum gave the highest number of fruit / plant, weight of fruit, total yields which reached 80.33%, 71.67% and 88.44% respectively. While there were no significant differences between plant spacing in these effects on the yield and yield componence with a noticeable increases in the spacing of 120 cm. as compared with 40 cm .Using a spacing of 120 cm. and treatment with 120 kg N/ Donnum nitrogen significantly increased plant height (cm), branches / plant, dry weight (gm), number of fruit / plant fruit weight (gm) and total yield ton / Donnum . We can recommended a spacing of 120 cm and fertilizing with 120 kg N/ Donnum nitrogen to give the highest growth and yield per unit area.