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    COMPARISON OF NUTRIENT UPTAKE BY STRAWBERRY (Fragaria x ananassa Duch.) VARIETIES ACCORDING TO PHENOLOGICAL STAGES
    (Univ Life Sciences Lublin, 2021) Bayram, Seda Erdogan; Elmaci, Omer L.
    The purpose of this study was to determine the amounts of nutrient elements taken up from the soil to the roots, stems and leaves, in five different growing periods and to the fruits in the harvesting period, in two different strawberry cultivars. For this purpose, ten plantations were selected for each cultivar. The roots, stems and leaves were separated and the amounts of nutrient elements taken up by each part was determined according to the development period. In this study, which was conducted over two years, the physico-chemical characteristics of the soils of the plantations from which the samples taken were determined. In both cultivars, the largest amounts of the macronutrients nitrogen, phosphorus, calcium and magnesium and of the micronutrient manganese were taken up at all phenological stages by the leaves, followed by the roots and stems. The amounts of potassium that taken up were as follows in the order of most to least: at the beginning and in the harvest period, leaves, stems and roots; in other periods, leaves, roots and stems. For the nutrient elements iron, copper and zinc, this comparison showed variation between parts of the plants according to year, variety and period. In general, statistically significant correlations were found between the nutrient elements taken up at different periods by different parts of the plant of different varieties in both years. Significant differences were shown among the years in the amounts of N, P, K, Ca and Mg taken up by the fruits of the Camarosa variety, and of Fe only by the Festival variety.
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    AN EVALUATION OF THE HEAVY METAL CONTENT OF SOIL, LEAVES AND FRUIT IN STRAWBERRY PLANTATIONS IN THE GEDIZ BASIN
    (Parlar Scientific Publications (P S P), 2021) Bayram, Seda Erdogan; Elmaci, Omer Lutfu; Secer, Muzeyyen
    In recent years, yield-focused production in agriculture aimed at meeting the world's increasing need for food has brought with it a number of damaging environmental problems. Among the most important of these is the accumulation of heavy metals in the soil, deriving from the uninformed and excessive use of agricultural fertilizers. Over the years, these heavy metals accumulate in the soil, from where they are taken up by plants, which are then eaten by animals, directly affecting the plant-animal-human food chain. In this study, an analysis was made of heavy metal pollution arising from the uninformed use of fertilizers and pesticides for strawberry production in the Gediz Basin of Turkey. The research was performed on two varieties of strawberry, Festival and Camarosa, which are widely grown in the area. Taking samples from plantations of each variety, ten soil samples were examined for their physical and chemical characteristics and total heavy metal content, and the heavy metal content of leaf and fruit samples was investigated. The soil-plant relationship was evaluated using the Pearson correlation test. The findings of the study showed no Cr, Cd, Co, Pb or Ni pollution according to national and international standards in the soils of the basin. The leaves of the two varieties in the two years of the experiment showed that the amounts of Cd were above the limit values. Pb and Cr contents of leaves were found to be respectively 50% and 30% above the critical values. Regarding the content of the heavy metals investigated in the fruits, only Cd and Pb showed values above the acceptable levels. Positive correlations were determined between the soil and leaf Cd contents and soil, leaf and fruit Pb contents only in the first year of the experiment in the soils of the Camarosa variety. The differences between the heavy metal contents of soil, leaf and fruit of the two varieties were found to be insignificant in both years examined.
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    Nutritional Status of Pepper (Capsicum annuum) Fields in the Manisa-Akhisar District
    (Univ Namik Kemal, 2019) Bayram, Seda Erdogan; Elmaci, Omer Lutfu; Ozden, Nejat
    This study was conducted out to detenninethe nutritional status of pepper fields in the Manisa-Akhisar district, where intensive pepper agriculture is practiced. A total of 30 leaf samples and soil samples taken from 0-30 cm depth where three different varieties of pepper were being grown commercially, and an analysis was made of fertility and plant nutrients. The fields where the capsicum plantations were located are 2500-3000m(2) in size and are watered with a dripirrigation system. According to the results, organic matter, total nitrogen, available phosphorus, iron and manganese content of the soil and total nitrogen of the leaves was found to be generally inadequate. in this way it was established that growers in the area should pay attention in their fertilization programmes both the organic and nitrogen, phosphorus, iron, and manganese fertilization.