Content of macroelements in index part of broccoli in relation to cultivation method and spacing
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Authors: | Aneta Grabowska1, Agnieszka Sękara1, Edward Kunicki1, Andrzej Kalisz1 1Department of Vegetable and Medicinal Plants, University of Agriculture in Krakow Al. 29 Listopada 54, 31-425 Kraków, Poland |
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Abstract : | Broccoli is a vegetable with systematically growing economical importance in Poland. This species is valued by the consumer due to its taste and health promoting effects. Yield and head quality of broccoli depend on the elements supply during the vegetation season. The results concerning the status of nutrition of broccoli plants with macroelements are presented on the basis on their content analysed in the index parts in two phases of growth. The analysis depended on the method of cultivation (seeds sown directly to the soil or seedlings) and plant spacing (20, 30, 40 and 50 cm x 67.5 cm). The range of the content of macroelements in the phase of vegetative development and the phase of flower head formation was as follows (g 100 g-1 DM): NH4+ 0.11-0.80 and 0.09-0.43; NO3- 0.49-5.73 and 0.34-3.30; P 0.17-0.31and 0.24-0.41; K 2.37-5.74 and 2.22-3.09; Ca 0.92-2.27 and 0.93-2.80; Mg 0.16-0.41 and 0.20-0.44, respectively. The level of the elements studied was differentiated not only between the experimental treatments but also among the years of the experiment. The presented results permit the diagnosis of the nutrient status of broccoli in phases which determine the yield and its quality. |
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Keywords : | Brassica oleracea var. italic, nitrogen, phosphorus, potassium, magnesium, calcium. leaf main vein | ||||||||
Language : | Polish |