Volume 9
Issue 4
Horticulture
JOURNAL OF
POLISH
AGRICULTURAL
UNIVERSITIES
Available Online: http://www.ejpau.media.pl/volume9/issue4/abs-57.html
EFFECT OF SOIL FATIGUE PREVENTION METHODS ON MICROBIOLOGICAL SOIL STATUS IN REPLANTED APPLE TREE ORCHARD. PART II. NUMBER OF BACTERIA
Krzysztof Rutkowski1, Eugeniusz Pacholak1, Zofia Zydlik2
1 Department of Pomology,
University of Agriculture in Poznan, Poland
2 Department of Pomology, Poznań University of Life Sciences, Poland
ABSTRACT
The object of the investigation were bacteria in the soil in diversified conditions of orchard irrigation and with the use of different methods of soil disease prevention. Samples for the estimation of the number of bacteria were taken in spring and autumn. During the study the following results were obtained: the total number of bacteria in the replanted orchard was lower than in the soil where apple trees had not been cultivated before. The irrigation did not increase of bacteria population in the soil, whereas the ammonium phosphate increased it. On the number of bacteria in the soil had influence also the application of the Alliette 80 WP and ammonia phosphate which decreased Azotobacter number in comparison with the control. The use of ammonia phosphate increased the number of Azospirillum in soil.
Key words: apple, replant soil, bacteria.
Krzysztof Rutkowski
Department of Pomology,
University of Agriculture in Poznan, Poland
159 D±browskiego Street, 60-594 Poznan, Poland
Phone (+48 61) 848 79 48
Eugeniusz Pacholak
Department of Pomology,
University of Agriculture in Poznan, Poland
159 D±browskiego Street, 60-594 Poznan, Poland
Phone (+48 61) 848 79 48
Zofia Zydlik
Department of Pomology, Poznań University of Life Sciences, Poland
ul. D±browskiego 159
60-594 Poznań, Poland
email: zydlik@au.poznan.pl
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