Találati lista | Tudóstér

001-es BibID:	BIBFORM106329
Első szerző:	Gebreyesus, Mehari
Cím:	Assessment of measured and estimated meteorological data in terms of sorghum production on the example of Hamelmalo, Eritrea / Mehari Gebreyesus, Györgyi Kovács, Géza Tuba, Arzu Rivera-Garcia, József Zsembeli
Dátum:	2022
Megjegyzések:	Eritrea is exposed to climate variability and extreme events like drought and precipitation variability. Hamelmalo, a sub region in Eritrea, suffers from all the problems brought by climate change, especially because local people mainly depend on rainfed agriculture. I it is difficult to conduct climate related research activities for the region due to the shortage of meteorological data. However, in 2015, a new, complete meteorological station was established providing the chance of the first observations for practical and scientific purposes. The main objective of this study was to evaluate some climatic parameters from crop productional point of view by comparing the observed values with ones calculated by the Local Climate Estimator (LCE) model. Chi-square test was used to statistically analyse the differences. Based on the results, all the studied climatic parameters, except for precipitation, were almost on a par, which means there were no statistically significant differences between the observed and the estimated values. It can be concluded that the most variable climatic parameter in Hamelmalo is precipitation and this also affects the climatic water balance hence the need for irrigation if higher yields are wanted to be achieved. Sufficient water is vital in the mid-season and the late developmental stage of sorghum. Therefore, sowing time is advised to be adjusted to early July to ensure the maximum vegetative growth and seed setting period to be reached at the end of August in order to take the advantage of the positive climatic water balance of these two months.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény hazai lapban folyóiratcikk climate change meteorological data sorghum production Eritrea
Megjelenés:	Columella. - 9 : 1 (2022), p. 17-30. -
További szerzők:	Kovács Györgyi (1980-) (környezetgazdálkodási agrármérnök) Tuba Géza (1973-) (agrármérnök, környezetgazdálkodási szakmérnők) Rivera Garcia Arzu (1989-) Zsembeli József (1967-) (agrármérnök)
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon:

001-es BibID:	BIBFORM106439
Első szerző:	Rivera Garcia Arzu
Cím:	Correlation of secondary salinization and soil conditioning in vegetable production under irrigation with saline water / Arzu Rivera-Garcia, Géza Tuba, Györgyi Kovács, Lúcia Sinka, József Zsembeli
Dátum:	2022
ISSN:	2064-7816 2064-9479
Megjegyzések:	Secondary salinization is a main problem around the world due to climate change and intrusion of salts in the soil by improper irrigation. Our aim was to study the soil salinization process by simulating vegetable production under irrigation with saline water (total soluble salt content 700 mg L??1). We tested 6 different technologies of soil conditioner application and 3 vegetable crops with different sensitivity to salinity in a small plot experiment set up on a meadow chernozem soil. During the irrigation season in 2020, we regularly measured the electric conductivity (ECa) and the soil moisture content (v/v%) in the topsoil (0.1 m) and analysed these parameters with Pearson's bivariate correlation (PCC) method. As our hypothesis, we expected that there is correlation among ECa, soil moisture content, soil conditioning, and providing the possibility to quantify the secondary salinization process.We found that all the 4 biosynthetic soil conditioners technologies minimized the harmful effect of saline irrigation. In the case of the not salt tolerant (NT) peas, the PCC correlation was higher to compost application and control expressing more intense salinization. NT beans showed a weaker correlation with lower PCCs, which must be due to its higher root activity leading to intensive leaching resulting in a lower degree of salinization. In the case of chilli with low salt tolerance (LT), micro dosing of soil conditioners was not effective in mitigating the harmful effect of secondary salinization, only full doses decreased the PCC. The salt tolerance of the investigated vegetable crops was also manifested in the yields. We found that PCC is a suitable statistical method to understand and quantify the process of secondary salinization.
Tárgyszavak:	Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény hazai lapban folyóiratcikk electric conductivity soil moisture content soil conditioners salt tolerance secondary salinization
Megjelenés:	Columella. - 9 : 22 (2022), p. 35-46. -
További szerzők:	Tuba Géza (1973-) (agrármérnök, környezetgazdálkodási szakmérnők) Kovács Györgyi (1980-) (környezetgazdálkodási agrármérnök) Sinka Lúcia (1993-) (környezetgazdálkodási agrármérnök) Zsembeli József (1967-) (agrármérnök)
Internet cím:	DOI Intézményi repozitóriumban (DEA) tárolt változat
Borító:
Saját polcon: