INFLUENCE OF FERTILIZATION ON GROWTH AND QUALTY OF LETTUCE

[...]according to many researchers, fertilizing the soil with organic fertilizer for vegetable nutrition alone does not produce good results in achieving high and stable yields. [...]various types of organic fertilizers should be applied in combination with mineral fertilizers (Ogbonna, 2008; Ndaeyo et al., 2005; Makinde et al., 2007; Dauda et al., 2008). [...]mineral fertilizers can have a detrimental effect on plant quality, declining dry matter content, increasing soil acidity, increases the nitrate concentration in the lettuce cultivar ,degeneration of physical properties, increasing erosion and instability of soil aggregates (Adeoluwa and Adeogun, 2010; Olowoake and Adeoye, 2010; Premuzic et al. 2001). Improvement of plant production goes towards significant use of microbial inoculants in the production of non-leguminous plants, including the most important crop and vegetable species. Because the aim of this study was to examine the effects of Slavol bio stimulant and the Fitofert fertilizer on production of the lettuce and draw a conclusion about the effectiveness of their action. [...]tested factor (B) includes the following variants: b1) Santoro RZ, and b2) Kiribati RZ.