Effect of nitrogen, phosphorus and potassium fertilization on yielding and biological value of fruits of aubergine (Solanum melongena L.)
Wydanie: 4 / 2010
Kategorie: Horticulture and forestry
A plant growing experiment was conducted in 2002-2003 on the aubergine cultivars Epic F1 and Solara F1 grown in an unheated polyethylene tunnel greenhouse at the Experimental Station in Marcelin, the University of Life Sciences in Poznan. Seedlings were planted on May 15 on beds at a 0.5 x 0.5 m spacing, i.e. 4 plants m-2, into 6 dm3 cylinders filled with a mixture, limed to pH(H2O) = 6.5, of mineral soil (light loamy sand containing 12% clay fraction - deposited on medium-heavy loam) with highmoor peat from Lithuania (v:v = 4:1). Basic fertilization - pre-vegetation and top dressing with macronutrients, based on an analysis of the substrate using the universal method in 0.03 M CH3COOH, was determined to attain the assumed levels: L (N - 200, P - 175, K - 330 mg dm-3), S (N - 300, P - 265, K - 500 mg dm-3), H (N - 400, P - 350, K - 665 mg dm-3), while maintaining the N:P:K ratio at 1:0.9:1.7. The aim of this study has been to determine the effect of a fertilization level and cultivar on the yield and biological value of fruits of aubergine grown on a mixture of mineral soil with highmoor peat (v:v - 4:1). The total yield, number of fruits and weight of individual fruits were determined. Significant effect was found for the fertilization level and cultivar on the total yield, mean number of fruits and weight of a single aubergine fruit. Fruits of cv. Epic F1 aubergine contained more vitamin C than fruits of cv. Solara F1. In both years, the solids content in fruits of the two aubergine cultivars ranged from 4.0 to 5.5 %. A higher mean dry matter content in aubergine fruits was recorded in cv. Solara F1.
Markiewicz B., Golcz A. 2010. Effect of nitrogen, phosphorus and potassium fertilization on yielding and biological value of fruits of aubergine (Solanum melongena L.). 15(4): 661-669.
Słowa kluczowe:aubergine, fertilization, biological value