The influence of the foliar fertilizing on tomato’s chemical content growing in protected spaces in Strumica area
2013
Todor-Stojanova, Marina (Ss. Cyril and Methodius University, Skopje (Former Yugoslav Republic of Macedonia). Faculty of Agricultural Sciences and Food) | Ivanovski, Igor (Ss. Cyril and Methodius University, Skopje (Former Yugoslav Republic of Macedonia). Faculty of Agricultural Sciences and Food) | Ilic-Popova, Srebra (Ss. Cyril and Methodius University, Skopje (Former Yugoslav Republic of Macedonia). Faculty of Agricultural Sciences and Food) | Kostadinova, Svetla (Agricultural University, Plovdiv (Bulgaria). Department for Agrochemistry and Soil Science)
It was examined the impact of foliar fertilization with mineral fertilizers on the yield of tomatoes grown in protected spaces in terms of Strumica region. Experiment was set in six variants and three repetitions. The variants in the experiment were: 1. Control; 2. Chelan sol11-4-42 +ME; 3. Folifertil 12-4-6 + ME; 4. Potassium nitrate 13-0-46; 5. Ariston0-030; 6. Megagreen. The experiment was set in 18 rows, and in each variant and repetition was included in 62 plants. During the vegetation were carried out seven treatments with following fertilizers as a concentration of 0.4%. Before setting up the experiment agrochemical analyses of soil were performed and good fertility was determined with the nitrogen and phosphorus and medium fertility with potassium. Performed chemical analysis of tomato fruits showed that foliar fertilization had a positive impact. In all five variants with different fertilizers was found higher content of all tested parameters compared with control untreated variant. The highest average phosphorus content (0.32%), potassium (2.27%) and zinc (19.50 ppm) obtained in variant 2. The highest average calcium content (3.02%) and magnesium (0.44%) was determined in variant 6. the highest average iron content (76 ppm), and manganese (18.7 ppm) was determined in tomato fruits of variant 3.
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