Effects of oat mixed with common vetch on the microorganism populations in rhizosphere soil

Abstract

Abstract: The population of rhizosphere microorganisms under oat(Avena sativa) and common vetch(Vicia sativa) was studied in different planting modes.The populations of rhizosphere bacteria, fungi and actinomycetes increased under oat through the jointing stage to the flowering stage then gradually decreased with oat growth. The population of rhizosphere bacteria under oat mixed with common vetch was significantly greater than that under oat monoculture (P<0.05) at different growth stages of oat. At harvest, the populations of rhizosphere bacteria under different treatments were dominant. The population of rhizosphere bacteria under the mixture of oat and common vetch was 1.1 times more than that under oat monoculture. Compared with that under oat monoculture, the population of rhizosphere bacteria under common vetch monoculture was 1.3 times higher. In mixtures, an intercropping ratio of oat and common vetch of 1∶2 had the greatest populations of rhizosphere microorganisms, whereas oat monoculture had the least. The mixture of oat and common vetch was beneficial for increasing the populations of rhizosphere microorganisms.

CLC Number:

WANG Xu, ZENG Zhao-hai, ZHU Bo, HU Yue-gao, LIN Ye-chun,
CHEN Gong, LU Jin-sheng, YUAN Xi-lan. Effects of oat mixed with common vetch on the microorganism populations in rhizosphere soil[J]. Acta Prataculturae Sinica, 2009, 18(6): 151-157.

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