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001-es BibID:	BIBFORM068915
Első szerző:	Czellér Krisztina (geográfus)
Cím:	Elaboration of the methodology of dew measurement by means of weighing lysimeters / Krisztina Czellér, Lúcia Sinka, Géza Tuba, József Zsembeli
Dátum:	2017
Megjegyzések:	Records of the frequency of occurrence of or the total amounts of dew are scarce. The lack of such records can undoubtedly be attributed to the difficulty of making quantitative measurements of dew. Within some limitations large precision weighing lysimeters can be suitable for the accurate determination of dew amounts. The lysimeter data completed with meteorological data provide the possibility to identify such periods with positive water balance when no rainfall occurred hence dew formation is probable. Nevertheless some "data noises" (oscillations) are characteristic to weighing lysimeter data gained with a high frequency for a longer period. These oscillations can be easily mixed up with the weight increase due to dew formation, therefore filtering or smoothing functions must be used to separate them. Our research aimed to elaborate a method that is suitable to separate true dewfall periods from oscillations and to quantify the amount of dew occurred on the surface of 2 weighing lysimeters of Karcag Research Institute of RISF UD for a longer period. The method we applied for filtering was the application of weight data measured with 1 hour frequency instead of 10 minutes frequency. The investigation period lasted from 1/4/2015 to 30/9/2016. Two high precision weighing lysimeters were involved, one with bare soil surface and one with grass cover. 43.11 and 49.35 mm dew was calculated for the grass covered and the bare surface lysimeters for the total 18-month-long investigation period with the application of our method.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény hazai lapban dew data filtering weighing lysimeter
Megjelenés:	Columella 4 : 1 (2017), p. 187-192. -
További szerzők:	Sinka Lúcia (1993-) (környezetgazdálkodási agrármérnök) Tuba Géza (1973-) (agrármérnök, környezetgazdálkodási szakmérnők) Zsembeli József (1967-) (agrármérnök)
Pályázati támogatás:	Osztrák-Magyar Akció Alapítvány: project nr. 92öu2 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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001-es BibID:	BIBFORM068913
Első szerző:	Zsembeli József (agrármérnök)
Cím:	Complex effect of secondary salinization and composting on soil respiration / József Zsembeli, Yuriko Mori, Géza Tuba, Krisztina Czellér, Györgyi Kovács
Dátum:	2017
Megjegyzések:	Salt-affection has been and still is a critical issue facing croplands in a large portion of the GreatHungarian Plain. Compost is known to have a positive effect on salt-affected soil, but little is known about thecorrelation between soil organic matter and bacterial activity. Microbial biomass and activity is found to berelative to levels of soil organic matter (SOM). Bacterial activity is affected by both salts and organic matter, andthis research aims to determine the breakpoint and relationship between those two parameters. A pot experimentwith 27 pots was set in Karcag Research Institute of RISF UD where soil respiration was measured undercontrolled conditions over a 16-week-long period. During the initial phase of the experiment, compost wasadded to non-salt-affected soil in differing doses (0, 25, 50 t/ha), and each sample was irrigated with a solutionof different salt concentrations (0, 600, 1800 mg/l) with three test replications. At the tenth week, the compostwas added to each at second time. At the thirteenth week, soil conditioner, rich in N, S and Ca, was addedequally to each soil sample. Following the experimental phase, nutrients and bacterial colony measurements wereconducted. During the phase of the experiment with compost application alone, the results demonstrated thatsalt concentration of irrigation water and compost ratio had negligible influence on soil respiration. However,following the addition of soil conditioner, a dramatic increase in respiration was recorded with initial spike ofchemical reaction and second spike with biological reaction. Nutrient components were highly affected by saltand SOM, therefore, soil microbial activity fluctuates with variable reasons including combination of nutrientsunder salt stress environment.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény hazai lapban CO2 emission composting soil organic matter secondary salinization
Megjelenés:	Columella 4 : 1 (2017), p. 193-198. -
További szerzők:	Mori Yuriko Tuba Géza (1973-) (agrármérnök, környezetgazdálkodási szakmérnők) Czellér Krisztina (1985-) (geográfus) Kovács Györgyi (1980-) (környezetgazdálkodási agrármérnök)
Pályázati támogatás:	TéT_12_SK-1-2013-0006 Egyéb TéT_12_SK-1-2013-0006 Egyéb
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon: