Year 2017, Volume 2, Issue 2

Year : 2017
Volume : 2
Issue : 2
Authors : Ivanka TOROMANOVA, Tonya GEORGIEVA
Abstract : The interest to the introduced rice cultivars (Oryza sativa L.) is explained by the search for more suitable varieties with good adaptability and high yield to be grown under the agro-climatic conditions in Bulgaria. The new foliar treatment products on the market - Folur, Amalgerol and Lithovit, have also provoked our interest. The survey was carried out in 2013 - 2015, applying the two-factor field experiment following the split plot method. Two Turkish - Osmanchik 97 and Gala, along with four Italian cultivars – Lince, Cameo, Puma and Brio were set as factor one. The foliar product Folur (2 l/da), Amalgerol (1.2 l/da) and Lithovit (0.300 kg/da) were set as factor two. The following factors were studied: phenological development of the cultivars, productive tillering capacity and yield. It has been specified that Osmanchik 97 and Gala had a shorter vegetative period. Lince stood out against the 6 tested cultivars by highest tillering results – 4.70 number of tillers/plant and was sharply outlined from the standard – Osmanchik 97, Puma and Brio. The tested products Folur and Lithovit had proven their effect on the formation of more productive tillering capacity – by 7.7% and 13.1% respectively. The highest yield was observed with Cameo (954.5 kg/da) and Brio (949.1 kg/da), which surpassed the Osmanchik 97 (control) by 8.6% and 8% respectively. The Amalgerol treatment proved to have the strongest positive impact on productivity and increased the average yield of the tested cultivars by 11.3%.
For citation : Toromanova, I., Georgieva, T. (2017). Impact of foliar fertilization on productivity of new introduced cultivars of paddy rice. AGROFOR International Journal, Volume 2. Issue No. 2. pp. 92-98. DOI: 10.7251/AGRENG1702092T
Keywords : Rice (Oryza sativa L.), cultivars, foliar treatment products, development and productivity.
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