Microbial Strategies for Crop ImprovementWith an ever increasing human population, the demand placed upon the agriculture sector to supply more food is one of the greatest challenges for the agrarian community. In order to meet this challenge, environmentally unfriendly agroch icals have played a key role in the green revolution and are even today commonly recommended to circumvent nutrient de? ciencies of the soils. The use of ag chemicals is, though, a major factor for improvement of plant