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This chapter traces the introduction of biological alternatives such as Pseudomonas fluorescens and Bacillus spp. into India and how they became accepted as ecology-conscious disease management strategies by resource-poor rice farmers during 1985–2005. This introduction led to the manufacture of these biologicals by private companies and agricultural universities, and they were distributed to farmers. The field application of these biological alternatives in the Kuttanad rice production area of Kerala is described in detail. This practice is a set of technology demonstrations put in place by the officials of the local Indian Council of Agricultural Research (ICAR). The region produces rice below the mean sea level and is a fragile biogeographical unit. Crop losses occur mainly due to prolonged waterlogging, soil acidity, and the excessive use of chemical fertilizers and pesticides. In the backdrop of this, the chapter describes the No Pesticide Rice Farming practice. This led to the use of a lower rice seed rate, better seedling planting space, site-specific nutrient management and more importantly, the practice used Pseudomonas fluorescens and trichocards to manage pests and pathogens. Rice farmers who have used this practice from 2011–12 harvested 15–20% higher grain yields without applying chemicals and have increased their net profit to Rs. 12,500/hectare of land.

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Field Application of Pseudomonas fluorescens for Rice Disease Management Improves Rice Yields and Leads to Development of Disease Suppressive Rice Soils in Southern India

  • 章节

  • 发表日期：

    2026年

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  • P. Muralidharan,
  • M. S. Rajeev,
  • A. Reema,
  • K. Sajnanath,
  • G. Lekha,
  • T. Sivakumar,
  • Samuel Gnanamanickam

摘要

This chapter traces the introduction of biological alternatives such as Pseudomonas fluorescens and Bacillus spp. into India and how they became accepted as ecology-conscious disease management strategies by resource-poor rice farmers during 1985–2005. This introduction led to the manufacture of these biologicals by private companies and agricultural universities, and they were distributed to farmers. The field application of these biological alternatives in the Kuttanad rice production area of Kerala is described in detail. This practice is a set of technology demonstrations put in place by the officials of the local Indian Council of Agricultural Research (ICAR). The region produces rice below the mean sea level and is a fragile biogeographical unit. Crop losses occur mainly due to prolonged waterlogging, soil acidity, and the excessive use of chemical fertilizers and pesticides. In the backdrop of this, the chapter describes the No Pesticide Rice Farming practice. This led to the use of a lower rice seed rate, better seedling planting space, site-specific nutrient management and more importantly, the practice used Pseudomonas fluorescens and trichocards to manage pests and pathogens. Rice farmers who have used this practice from 2011–12 harvested 15–20% higher grain yields without applying chemicals and have increased their net profit to Rs. 12,500/hectare of land.