The influence of the cultivar and the cultivation technology on the yield of leaf cabbage (Brassica oleracea var. palmifolia)
Abstract
The production of vegetables in the countries of the European Union increased by more than 34% (1970-2020) in the large producing countries, by increasing the yield, in the conditions of the decrease of cultivated areas. Kale is a leafy vegetable which tolerates low temperatures, being feasible for both in field and protected cultivation in Transylvania’s climate conditions. The aim of this research was to evaluate the production of two cultivars of kale ('Red Siberian', 'Black Tuscany'), influenced by plant height and facial fertilization, produced in solar. The two kale cultivars were cultivated in 2023 year in a high tunnel, in Colina Farms, which is located in Băbuțiu village – Cluj County. Genotype is of great importance in achieving high production. The most valuable variety, in terms of total production, turned out to be Siberian Red, with an average production per experience of 6.9 kg/m2. Following the unilateral analysis of fertilization on production, it is observed that the plants of the organically fertilized variants achieve a lower production by 1.35 kg/m2, compared to chemical fertilization (7.09 kg/m2). The production of green cabbage in the solar system was high in the conditions of Transylvania, as a result a possible source of income for farmers, having the advantage of a simple culture technology.
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