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Keywords:

  • Associative bacteria and fungi;
  • bacteriophage;
  • biological control;
  • endophytes;
  • mycorrhizas;
  • nitrogen fixation;
  • rhizobacteria

Problems and concerns in relation to the use of inorganic fertilisers, irrigation, herbicides and pesticides have led to the search for alternative strategies to combat limiting soil nutrient and water levels and the effect of weeds and pests on crops. Greater utilisation of microorganisms in agricultural systems could possibly allow reductions in the use of inorganic fertilisers, water, herbicides and pesticides with no impact on crop yield. Positive plant microbial interactions which are currently under study are considered here.