In this study, it was carried out in order to determine the amount of plant nutrients that can be obtained from the wastes of tomato plants grown with soilless agriculture technique in the greenhouse and to make suggestions for evaluation possibilities. For this purpose, cocopeat and plant samples were taken from the soilless greenhouse where tomatoes were grown at the end of production. The stem, leaf, fruit and root of the collected cocopeat and plant samples were separated and N, P, K, analyzes were made in these separated samples. According to the results obtained, the amount of N that can be added to the soil with the cocopeat wastes is determined as 10.58 kg, the amount of P 0.09 kg and the amount of K 0.52 kg for one decare area. The total N amount that can be gained from the roots, stems, leaves and fruits of the waste tomato plant per decare area was determined as 6.65-11.97 kg, P content 1.22-2.52 kg and K amount between 5.10-18.21 kg. Considering the distribution of the amount of NPK that can be added to the soil according to the plant parts. On average, 4.18 kg in root, 2.50 kg in stem, 7.58 kg in leaf and 7.46 kg in fruit were found to be wasted due to not evaluating plant wastes. The organ with the highest N content among plant parts is the leaf, and 42.73% of the total N is found in the leaf. P and K are mostly found in fruits. In addition, 41.73% of P and 36.62% of K are excreted with fruit. It will be possible to improve the soils with insufficient organic matter content throughout Turkey by composting the wastes from greenhouses. In addition, it has been determined that these wastes are very important in terms of reducing the visual pollution caused by these wastes, harmful emissions that will arise as a result of burning and bringing them into the economy.
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W pracy przedstawiono wyniki badania nad ściśliwością wybranych popiołów lotnych. Celem badań było określenie wpływu zagęszczenia, wilgotności i nawodnienia na wartości osiadania i modułów ściśliwości popiołów. W celu określenia wpływu zagęszczenia badania wykonano przy stałej wilgotności popiołów (w = wopt), natomiast parametrem zmiennym był wskaźnik zagęszczenia: IS = 0,85, 0,90 i 0,95. Dla określenia wpływu wilgotności badania wykonano przy stałym wskaźniku zagęszczenia (IS = 0,95), natomiast zmienna była wilgotność: w = 25, 35 i 45%. Dla określenia wpływu nawodnienia badania wykonano na próbkach o takich samych parametrach jak wyżej podano, lecz zawodnionych przed obciążeniem. Badania wykonano w edometrach standardowych na próbkach obciążanych do 0,40 MPa. Badania przeprowadzono w aspekcie możliwości wykorzystania odpadów elektrownianych do celów budownictwa ziemnego.
EN
The paper presents the results of compressibility tests on chosen fly ashes performed in standard oedometers. The aim of investigations was to determine the influence of compaction, moisture content and saturation on the values of settlement and compressibility modula of fly ashes, in the aspect of their use in earth structures. The tests were carried out at the constant moisture content (w = 35%) and various compaction indexes (IS = 0.85, 0.90, 0.95) as well as at the constant compaction index (IS = 0.95) and various moisture content (w = 25, 35, 45%) to realise this aim. The tests for determining the influence of saturation were carried out at the same parameters as given above but water had been added before loading.
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