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Not Bot Horti Agrobo, 2013, 41(1): 226-230 Print ISSN 0255-965X; Electronic 1842-4309 Available online at www.notulaebotanicae.ro Notulae Bota nicae Horti Agrobot anici Cluj-Napoca Influence of Fertilization System on the uality of Cucumbers Gheorghe CÎMPEANU 1 *, Gabriela NEATA 1 , R azvan TEODORESCU 1 , Carmen CÎMPEANU 1 , Ionel FOLEA 2 1 University of Agronomical Sciences and Veterinary Medicine Bucharest, Faculty of Horticulture, Marast i, 59, Dist .1, Bucharest, Romania; [email protected] 2 University of Biotera, Bul. Ion Ionescu de la Brad, 121, Dist.1, Bucharest, Romania Abstrac t Different types o cucumbers culture, respectively organic system and the system o chemical and organic ertilization can influence vegetable quality. Te present study was carried out in a solarium on a arm, in six experimental variants, thre e replications. Tree variants or ertilization systems with t wo cucumbers cultivars were used. Te biological material used in t he experiments consisted o the cultivars ‘ rium ’ F1 and ‘Mirabelle’ F1. Fertilization systems used were organic w ith manure, classic with chemical ertilizers and soluble complex ertilizers with ertigation. In the present research agrochemical and biochemical characteristics were analysed and also weight o ruits and yield on plants and kg/m 2 were measured. Agrochemical characteristics were: contents o nitrates, phosphorus and potassium rom cucumbers and the biochemical characteristics measured were: acidity, soluble carbohydrates, vitamin C and dry matter. Te results showed that the ertilization with soluble complex ertilizers in addition with ertigation assured the entire necessary or the growth and ructification o cucumbers. Te presence o chemical ertilizers do not influence in a negative way the nitrates, phosphorus and potassium content and the quality o consumption o cucumbers was assured. Regarding the cultivars the best yield and quality results were obtained to ‘Mirabelle’ F1. Keyword s: biochemical characteristics, cultivars, organic and chemical ertilizers Introduction Growing cucumbers in Romania is, in most cases, based on the organic system and the system o chemical and organic ertilization. Tese types o culture can influence vegetable quality owing to increased photosynthesis. Cucumber crop occupies the land or our months, the mandatory technology should support vegetative growth and build upon the ertilization phases. Fertilization based on soil cucumber crops is limited to a moderate amount o ertilizer since root sensitivity does not support high concentrations o minerals with chloral and sulphates in the soil (El-Dakish, 2004). raditional phase ertilization is also relatively difficult due to their difficult insert into the soil rom the technological point o view and the su- perficial strikin g roots o the cucumbers plant. Also, phase ertilization in leaps is no solution or the growth and ruition o the soil-grown cucumbers (El-Dakish, 2004). Te occurrence o soluble complexes ertilizers contain- ing a complete range o macro and micro elements on the market simplifies the applied mode and efficiency o phase ertilization effect in the cucumber crop grown in the so- lariums (Massantini, 1988). Drip ertilization is applied on the vigorous plants every day by using equal norms with daily consumption (El-Dakish, 2004). Tus, soil humidity can be maintained at constant values as the ertilizers necessary or phase ertilization allow plant supply with nutritive elements in agreement with consumption. Tus, the positive effects o irrigation and phase ertilization applied in culture are combined with the aim o achieving high yield and qualit y (Mao et al., 2003). An experiment was conducted to study the different effects o special compound ertilizer presented in ab.1, pure chemical ertilizer and pure organic ertilizer on growth, yield and quality o cucumber in soil greenhouse (Fang, 2005). Compared with the effect o pure chemical ertilizer or organic ertilizer could greatly improve the cucumber`s quality and determined lower content o N-NO 3 - . Te influence o ertilization system on the quality o vegetables was study by a lot o researchers around the world: Granges et al . (2000) determined the dry matter contents, carotenoids and acidity characteristics o different vegetables in different ertilizer conditions, Noguera et al . (1988) determined dry matter contents, Massantini (1962) determined the sugar content and Tybo et al. (2005) also determined the acidity contents o vegetables in different conditions o culture in greenhouse. Tese characteristics were determined at the finish o vegetable culture o cucumbers at different cultivars and phase o maturity (Noguera, 2005; Parks, 2004).

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