Effect foliar of some organic fertilizers on growth and yield of four potato cultivars

	Effect foliar of some organic fertilizers on growth and yield of four potato cultivars
Euphrates Journal of Agriculture Science
Article 1, Volume 6, Issue 4, 2014, Pages 246-254
Abstract
Abstract : An experiment was carried out in one of the private field in Al-Radwaniah , western south of Baghdad to study the effect of spraying two types of organic fertilizers , Alexin [0 (control) , 1.25 g/L (Alx1) and 2.5 g/L (Alx2)] and Tronver [0 (control) , 1.5 ml/L (Tro1) and 3 ml / L (Tro2) ] using four verities of potatoes Arizona , Riviera , Ambition and Lusa class Elite . Potato tubers were planted on 2-Feb-2013 used application N,P,K 120 : 60 : 200 kg / ha . Plants were spread at 45 and 65 days after planting . Split Plot Design with three replications was used. Results showed that Ambition was superior in number of stems per plant (4.60 stem / plant) and greatest number of marketable tubers (7.05 tuber / plant) and highest average tuber weight (107.87 g/tuber) and greatest of yield per plant (788.16 g) and marketable yield (40.69 ton/ha) . Fertilizer Tro2 gave highest in all vegetable growth and yield characteristics. Treatment Ambition with Tro2 was superior in most yield characteristics , its gave greatest number of marketable tubers (8.47 tuber / plant) , highest yield per plant (947 g / plant) and greatest marketable yield (50.07 ton / ha) , while treatment Lusa with Tro2 gave greatest of average tuber weight (112.43 g / tuber). The suggestion could be made that spraying of organic fertilizer Tronver in concentration 3 ml/L , 45 and 65 after planting resulted in highest yield per plant and marketable yield and produce healthy crop contain small amount of pollution chemical.

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