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The Possibilities for New Irrigation Methods in Floriculture in a Greenhouse
Published August 21, 2020
365-369

Widespread irrigation methods: Dribbling: water is leaking in perforated pipes, it can be used in beds and on tables. Drip tube: various elements (drip tapes, hard tubes inserted into a dropping bottle) of water are delivered to the roots of the plants. Mat watering: the potted plants are placed in a so-called water vehicule duvet, which is be ...flooded with water. Ebb and flood system: the table of the greenhouse is flooded by water or a nutrient solution at the height of 1-2 cm. Sprinkler irrigation system: the fineness of the the spray heads varies depending on the spray head, micro sprinkers are often used. It contributes to the inrease in the humidity of the environment. Boom watering: special equipment, a hosepipe with a fine spray nozzle which is moving over the plant beds or tables, it forms a right angle to them and moves back and forth.

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The Correlation between Nitrogen and Vitamin C Content of Celery in Sandy Soil
Published August 21, 2020
327-331

In our series of experiments celery test plants were used in lysimeter type pots. Plant growth, nutrient content and the relationships of them were observed. This publication shows the effects of different doses of nitrogen fertilizer (absolute control, basic +60/120/180 kg/ha N, and the base + 240 kg / ha N (calculated N from manure). The nitr...ogen content of the celery increased significantly depending on the N-doses; and a strong positive correlation (r = 0.815, p < 0.025 level) was detected in the tubers between N content and vitamin C. Our results establish that in our experimental setup on sandy soil, organic fertilization - enriching the colloid content and improving soil structure - proved to have the most beneficial effects.

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The Effect of Nettle and Bear Garlic Extracts in Biological Control
Published August 21, 2020
309-316

During our research we have made a fermented solution and infusion of two plants, namely nettle and bear garlic. The experiments took place in the exhibition garden at the Horticultural Faculty of Kecskemét College. Kápia paprika was the objective of the experiment. We have collected leaf samples from the experiment units and measured the gro...wth quantity. The nettle and bear garlic extracts have a good effect on the growth quantity and the condition of plants. The injury of Helicoverpa Armigera could have been diagnosed only in the plants of the control group, however this has not occured in the treated groups. According to our research results we recommend using these plant extracts in practice for the purpose of biological control and nutrient supply.

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The Past, Present and Future Research Results and Opportunities in the Sand Ridge in the Danube-Tisza Interfluve
Published August 21, 2020
12-20

In this paper we wish to give some information about the research results and practical experience, the current and future opportunities of the sand rige of the Danube-Tisza Interfluve without aiming at completeness. In our researchgoing on for several decades we have achieved a lot of results and we were the first to write down several of them.... In this paper we want to provide a brief overview of the main directions of our research accomplishments and foremost we would like to draw attention on our main study results.

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The Micropropagation of Cornus mas and Hippophae rhamnoides
Published August 6, 2020
105-112

With the help of tissue culture techniques we managed to establish and maintain the shoot tip culture of Cornus mas and Hippophae rhamnoides. The aim of this study was to establish a practical method for the rapid and large scale multiplication of these species. We have applied various culture media (DCR, BTM). In terms of the hormone level BAP... has proved to be the best. We managed to solve the start and the multiplication of cultures. Currently rooting experiments are being conducted.

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The agricultural value of the rest of the biogas fermentation
Published August 6, 2020
190-196

Following the international trends great numbers of biogas plants were opened during the last few years in Hungary. However this issue presents a number of new questions, including the subsequent use of anaerobic fermentation residues. This endproduct can be applied as fertilizer. Chemical properties of digestate are correspond to the Hungaroan... Regulations. Digestate contains high amount of nitrogen which is present mainly ammonium form and this form can cause root depression and lower germination rates. High ammonium and mineral salt content of digestate increased the water soluble salt content of soil. The added amount of NH4-N transformed to NO3-N while disengage hidrogen ions from the bond. This process caused the decreasing pH. Humus content determination did not show changes. Long term experiments are needed to recognise detail effects.

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Vermicomposting of communal sewage sludge
Published August 6, 2020
52-60

The proper management of communal sewage sludge is a priority aim in today’s environmental protection. Among the possible technologies one environmentally sustainable sludge treatment technology can be the vermicomposting of communal sewage sludge. Before the successful operational level vermicomposting is absolutely necessary to investigate ...the process of vermicomposting in laboratory controlled conditions. In our studies vermicomposting of communal sewage sludge was carried out by comparing two earthworm populations in laboratory. During 6-week experimental period the temperature (with soil thermometer) and the redox potential (with ORP portable device) were measured every other day. The weekly, measured, basis parameters were the compost visual appearance, color and smell, pH (H2O), dry matter content, organic matter content, EC (conductivity), from which the total salt content can be calculated, total nitrogen content, phosphorus content (P2O5), potassium content (K2O), calcium and magnesium content, humus content (H%), determining the humus quality according to Hargitai’s method and dehydrogenase enzyme activity. It can be concluded from the results that the vermicomposting of studied communal sewage sludge has started and keeps going. The basic physical and chemical parameters (e.g. temperature, humus quality and quantity) support the changes. The results of humus quality and quantity which are priority variables of agriculture use show average increasing despite the initial recession. The changes of the important chemical parameters (nitrogen, phosphorus, potassium) in nutrient management were developed favorably. In our presentation the previous laboratory results are described.

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