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Plant growth-promoting bacteria and desert re-vegetation

Plant growth-promoting bacteria and desert re-vegetation

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Log cfu/g (roots or soil)<br />

7<br />

6<br />

5<br />

4<br />

3<br />

2<br />

1<br />

SURVIVAL OF Azospirillum IN THE<br />

RHIZOSPHERE AND BULK SOIL OF<br />

REVEGETATED AREA OF CARDON CACTUS<br />

BULK<br />

SOIL<br />

RHIZOSPHERE<br />

SOIL<br />

0<br />

inoculation 1 month 6 months 12 months 24 months<br />

BASHAN ET AL. 1999. CAN J. MICROBIOL

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