The effect of soil and foliar application of nitrogen on yield and quality of tea
2012
Bagheri, F. | Majdsalimi,K. | Alinaghipour,B. | Islami,K. | Taghi Shokrgozar, S.A. | Motavali Jalali,M. | Rahbar,A. | Haghgo,H.
An experience was carried out to find the effect of soil and foliar application of urea fertilizer on yield and quality of tea and determine the most suitable way of urea fertilizer application. This study was conducted in Fashalam tea research station (Fouman) during three years (2007-2011). The experiment model was the randomized complete block design for main factor, with secondary factor a split plot on main factor. The main factor was four levels of soil application of urea (0, 200, 300 and 400 kg N/ha) and sub factor was three levels of foliar application of urea (0, 0.25 and 0.5 percentage). The results of combined variance analysis showed that the effect of soil application of urea was significant (p 0.01) on yield, two & bud number, dry matter, leaves nitrogen, total ash and caffeine. The highest amount of yield, two & bud number and caffeine were obtained at 300 kgN/ha. The amount of leaves nitrogen was higher at the level of 400 kgN/ha. The highest percentages of dry matter and total ash were observed at no nitrogrn appilication. Whereas the interaction effects of soil application and foliar application of urea ware significant (p 0.05) on two & bud number and leaves nitrogen. The highest amount of two & bud number was attained at 400 kgN/ha and 0.5% N foliar application. The amount of leaves nitrogen was higher at the level of 300 kgN/ha and 0.5% N foliar application.
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