Wyniki wyszukiwania - Biblioteka Nauki

1

Evaluation of harvest waste in soilless agriculture tomato cultivation

100%

Boyaci S. , Abaci Bayar A. A. , Başak H.

Infrastruktura i Ekologia Terenów Wiejskich

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2022

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tom nr I/1

29--42

EN

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.

2

Comparison of heat requirements in greenhouses for Kirşehir and Kahramanmaraş provinces

100%

Boyaci S. , Akyüz A. , Tanriverdi Ç.

Infrastruktura i Ekologia Terenów Wiejskich

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2022

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tom nr I/1

5--20

EN

Greenhouses are artificial growing environments that can provide the growth factors required for the production of crop plants out of season. In these structures, the low temperature values that occur during the year cause losses in yield and quality because they are not suitable for plant cultivation. In order to be able to grow out of season in these periods, the amount of heat required by the plants should be provided with additional heating. In the study carried out to determine the amount of heat needed in greenhouses throughout the year for the provinces of Kırşehir and Kahramanmaraş, which are located in two different regions of Turkey, the heat requirements that will arise in the presence or absence of a thermal screen in greenhouses with the same characteristics were calculated. In the calculations, the most common tomato plant grown in both provinces has been considered. Accordingly, if the greenhouse temperature is kept at a constant temperature of 18°C throughout the year, the heat energy requirements that emerge during the year are 469.90 kWh m.-2 for Kırşehir and 254.71 kWh m.-2 for Kahramanmaraş. In the case of using a thermal screen, these values were calculated as 401.53 kWh m.-2 for Kırşehir province and 218.91 kWh m.-2 for Kahramanmaraş province. As a result of the study, the amount of heat energy needed in greenhouses in provinces decreased with the use of thermal screens. It has been determined that this situation is extremely important in terms of reducing the share of heating in production costs and the amount of carbon dioxide released into the atmosphere by fossil energy sources used for heating purposes.

3

Determination of the Vertical Distribution Pattern of Indoor Climate Parameters in the Greenhouse Heated in the Winter Period

100%

Boyaci S. , Başpınar A. , Atilgan A. , Rolbiecki R.

Rocznik Ochrona Środowiska

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2023

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tom Tom 25

105--115

EN

Ensuring the homogeneity of the indoor climate throughout the greenhouse is very important for uniform plant cultivation. In the study carried out to determine the indoor climate distribution in the heated greenhouse in the terrestrial climate, indoor temperature, relative humidity, dew point and vapour pressure deficit values were measured from 8 different measurement points. The distribution pattern of the measurement points was made horizontally and vertically at 2, 4 and 6 meters. Sensor placements are grouped vertically at 2 meters (G1: S1, S2 S3), at 4 meters (G2: S4, S5, S6) and at 6 meters (G3: S7, S8). Measurements taken during the day are divided into three parts. The climatic changes in the greenhouse were monitored as daily (00:00-23:30), daytime (08:30-17:30) and night (18:00-08:00) hours. According to the results obtained from the research, it was determined that the indoor climate parameters in the greenhouse change during the average daily, daytime and night hours at different times of the day and at different locations. According to this, it has been determined that it is important for better regulation of the greenhouse climate by monitoring the changes in the plant level as it rises from the greenhouse floor to the ridge with multiple sensors instead of a single sensor.