POPULATION DYNAMICS OF SOIL MICROORANISMS IN RHIZOSPHERE OF COTTON PLANTJournal: Science and world (Vol.3, No. 20)
Publication Date: 2015-04-22
Authors : Umbetayev I.; Shamsiyev A.S.; Bezborodov G.A.;
Page : 104-107
Keywords : cotton plant; microorganisms; soil; ammonification.;
Relying on the microbiological parameters of the tested samples of soils, it is determined that many samples of soil contain many micromycetes, especially in sample 4. This means that the plants growing on this soil can become infected with root rot and other diseases. To correspond to the norm, the amount of micromycetes must be by 1-2 orders lower, i.e. 102-103 cfu / g soil. The population of actinomycetes in all 6 samples is small but the largest population of them is in samples 1, 3, 5 and 6. To correspond to the norm, they must come to 106 cfu / g. Only ammonifiers and oligonitrophiles correspond to the norm. The amount of phosphorus mobilizing bacteria is normal only in samples 1 and 3 - 3.0-3.7х107.
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