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1.

001-es BibID:BIBFORM005558
Első szerző:Balláné Kovács Andrea (vegyész)
Cím:The influence of chemical and biofertilizers on the yield, nitrogen, phosphorus and potassium content of lettuce (Lactuca Sativa L.) in a two-year greenhouse experiment / Andrea Balla Kovács, Imre Vágó, Rita Kremper, Marianna Sipos, Magdolna Tállai
Dátum:2008
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény hazai lapban
Megjelenés:Journal of agricultural sciences = Acta Agraria Debreceniensis. - Suppl. (2008), p. 43-48. -
További szerzők:Vágó Imre (1953-) (vegyészmérnök) Kremper Rita (1969-) (matematika-kémia tanár, angol szakfordító) Sipos Marianna (1984-) (környezetgazdálkodási agrármérnök) Tállai Magdolna (1982-) (agrármérnök)
Internet cím:elektronikus változat
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2.

001-es BibID:BIBFORM005559
Első szerző:Kátai János (biológus, hidrobiológus)
Cím:The effect of zeolite and bentonite on some soil characteristics on acidic sandy soil / János Kátai, Rita Kremper, Magdolna Tállai
Dátum:2008
Megjegyzések:In a pot experiment, we have studied the effect of zeolite and bentonite in different dosages [control-5 (1x)-10 (2x)-15 (3x)-20 (4x) g kg-1] in comparison to the control treatment on acidic (pHH2O=5.58) humus sandy soil. The experiment was set up in 2007 in the greenhouse of the UD CASE Department of Agrochemistry and Soil Science. As a test plant, perennial ryegrass (Lolium perenne L.) was used. The samples were collected four and eight weeks after sowing. In laboratory examinations, nitrate-N content, readily available phosphorus and potassium content were determined. From among soil microbial parameters, the total number of bacteria, the amount of cellulose-decomposing bacteria, the carbon-dioxide production of soil and saccharase activity were measured. The effect of zeolite and bentonite in different dosages on the studied chemical and microbial soil parameters of a sandy soil can be summarized as follows: Regarding the readily available nutrient content of the soil, low and medium dosages proved to be effective, high dosages of both treatments reduced the nitrate-N content. A high dosage of zeolite significantly increased the readily available phosphorus content of the soil, it also increased (not significantly) the AL-soluble potassium content. A high dosage of bentonite reduced (not significantly) the AL-soluble phosphorus content of the soil and increased the readily available potassium content. Among the soil microbial parameters, the total number of bacteria was measured and it was increased by both treatments. The low (1x) and medium (2x, 3x) dosages resulted in a significant increment for zeolite and bentonite treatments, respectively. The bentonite treatments resulted in a larger increment than the zeolite treatments. The twofold dosages of both treatments tripled the number of cellulose-decomposing bacteria. The number of bacteria increased significantly as a result of the medium-dosage bentonite treatment. The highest dosage of both treatments reduced the number of bacteria below that of the control. The CO2-production of the soil was significantly increased by the two- and threefold dosages of zeolite and by the low and medium dosages of bentonite. Based on our results, the zeolite treatments proved to be more effectibe as regards soil respiration. Saccharase activity was significantly increased by the basic dosage (1x). Medium dosages resulted in a significant and non-significant increase in enzyme activity in the case of bentonite and zeolite treatments, respectively. The largest dosage of both treatments reduced the enzyme activity. In the correlation analysis, we found a tight positive correlation between the soil nitrate-N content and the saccharase activity (r=0.880). In the case of the bentonite treatments, we also found a tight positive correlation between the changes in the total number of bacteria and saccharase activity (r=0.869). We found medium correlations between numerous other soil parameters. In sum, it can be stated that both zeolite and bentonite treatments had a favourable effect on some studied chemical and microbial parameters of acidic sandy soils. The zeolite treatments were more effective regarding the nutrient stock of the soil. For microbial activity, the zeolite treatment proved to be advantageous for the carbon dioxide production of the soil, while the bentonite treatments had a better effect on the total number of bacteria, the amount of cellulose-decomposing bacteria and the saccharase activity.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény hazai lapban
sandy soil
soil microbiology
nutrient content
zeolite
bentonite
Megjelenés:Journal of agricultural sciences = Acta Agraria Debreceniensis. - Suppl. (2008), p. 117-122. -
További szerzők:Kremper Rita (1969-) (matematika-kémia tanár, angol szakfordító) Tállai Magdolna (1982-) (agrármérnök)
Internet cím:elektronikus változat
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3.

001-es BibID:BIBFORM006232
Első szerző:Kincses Sándorné (agrokémia)
Cím:Investigation of after-effect of bacterium fertilization in pot experiment / Ida Kincses, Rita Kremper, Marianna Sipos
Dátum:2008
Megjegyzések:Ecological farming is getting even more wide spread, in horticulture as well, within that - beside fertilizers - the organic manure and bacteria fertilizers are becoming more and more important. In our comparing experiment we studied the effect of mineral fertilizer and bacteria fertilizer on the dry matter production and nitrogen-content of parsley (Petroselium crispum) and on the 0,01 M CaCl2-soluble N-content - that is easily taken up by plants - of two different soil types. In the second year of our experiment we used only mineral fertilizer, so that we could reveal the after effect of bacteria fertilizer (Philazonit-MC). The results of our experiment are the following: On the chernozem soil the N-fertilizer significantly increased the dry matter production of parsley. On the other hand the bacteria fertilization on the same soil type in the first vegetation period only trended to, contrarily in the second vegetation period significantly increased the dry matter of parsley. On the sandy soil - in both years - the N-fertilization trended to increase the dry matter production of plants, but bacteria fertilization - also in both vegetation periods - with higher amount of nitrogen added resulted a dry matter yield increment, while with a lower amount of nitrogen added it decreased the dry matter production of plants. The effect is not proven by statistical analysis. A positive significant effect was detected on the chernozem soil between N-fertilization and the N-content of plants. Bacteria fertilization contrarily did not have any influence on it. On the sandy soil N-fertilization resulted a N-content increment in both vegetation periods. The positive effect of bacteria fertilization could be revealed in the second year. N-fertilization increased the 0,01 M CaCl2-soluble N-content of chernozem soil in both years. This effect is also statistically proven. Bacteria-fertilization, however in the first year significantly increased, in the second year trended to decrease the 0,01 M CaCl2-soluble N-concentration of the chernozem soil. We could reveal a positive significant effect between the 0,01 M CaCl2-soluble N-content of the sandy soil and the N-fertilization in both vegetation periods. Bacteria-fertilization showed a trend to decrease this content. To draw further conclusions other examinations are needed in the future.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény hazai lapban
Bacterium fertilizer
dry matter
parsley
Megjelenés:Journal of agricultural sciences = Acta Agraria Debreceniensis. - Suppl. (2008), p. 23-27. -
További szerzők:Kremper Rita (1969-) (matematika-kémia tanár, angol szakfordító) Sipos Marianna (1984-) (környezetgazdálkodási agrármérnök)
Internet cím:elektronikus változat
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4.

001-es BibID:BIBFORM087763
Első szerző:Kremper Rita (matematika-kémia tanár, angol szakfordító)
Cím:The effect of zinc fertilization on the yield and element content of ryegrass / Kremper Rita, Seres László
Dátum:2010
ISSN:1588-8363
Megjegyzések:The effect of Zn fertilization on the yield and Zn, N, P, K, Mg and Mn content of ryegrass was studied in a greenhouse experiment for 8 chernozem soils with three replicates under uniform NPK supply and irrigation. The applied Zn rates were 0, 2.5 and 5 mg/kg Zn. Due to Zn doses the yield incrased significantly. Zn fertilization increased the plant Zn content and decreased the plant P and Mn content significantly. For N, K and Mg there was no significant effect.
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény hazai lapban
folyóiratcikk
zinc
fertilization
greenhouse
Megjelenés:Journal of Agricultural Sciences. - 38 (2010), p. 27-31. -
További szerzők:Seres László
Internet cím:Szerző által megadott URL
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5.

001-es BibID:BIBFORM005755
Első szerző:Kremper Rita (matematika-kémia tanár, angol szakfordító)
Cím:The effect of Zn fertilization on the dry matter production of ryegrass / Rita Kremper, Sándor Berényi, Péter Tamás Nagy, Andrea Balla Kovács, Jakab Loch
Dátum:2008
Tárgyszavak:Agrártudományok Növénytermesztési és kertészeti tudományok idegen nyelvű folyóiratközlemény hazai lapban
Megjelenés:Journal of agricultural sciences = Acta Agraria Debreceniensis. - Suppl. (2008), p. 13-17. -
További szerzők:Berényi Sándor (1972-) (vegyész) Nagy Péter Tamás (1970-) (vegyész) Balláné Kovács Andrea (1967-) (vegyész) Loch Jakab (1932-2023) (kémikus)
Internet cím:elektronikus változat
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