Effect of Foliar Fertilizer with N and K on quality and yield of cotton

	Effect of Foliar Fertilizer with N and K on quality and yield of cotton
Journal of Tikrit University For Agriculture Sciences
Article 1, Volume 9, Issue 2, 2009, Pages 148-159
Abstract
To study suitable combination of applying N and K as foliar fertilizers on some yield quality and yield of cotton ( cv.coker 310 ) a field experiment was conducted at the State Board for Agric . Res./ Station Abu-Ghraib during 2001 and 2009 seasons , RCBD design with 3 replication was used on Silty Clay Loam soil . The experiment consisted of 17 treatments prepared from all combinations of 4 levels of each N and K ( 0 , 1500 , 3000 , 4500 ) mg.l-1 in addition to the standard treatment where NPK ( 200 N + 100 P and 150 K) were soil applied. The results showed that the suitable N- foliar fertilization treatment was 3000 mg N.l-1 which caused significant differences in seed cotton yield and lint of the two seasons .The mean increased to about 30.4 and 6.6 % for seed cotton yield and 20.3 and 6.6 % compared with the control and 1500 mg N.l-1 treatments respectively. Using K- foliar fertilization treatment (4500 mg K.l-1 ) caused significant differences in seed cotton yield ,and lint the mean increased to about 30.2 and 7.8 % and in yield cotton lint to about 19.2 and 6.4 % compared to the control and 1500 mg K.l-1 treatments respectively. The application of (3000 N + 4500 K ) mg.l-1 significantly increased seed cotton yield 3862 Kg/ha and, lint 844.4 Kg/ha and fiber Length 27.20 ml comparing with the other foliar treatment, While no significant differences recorded in the other plant parameters ,this treatment also had increased effects compared with the soil application treatment.

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