• DOI:10.20546/IJCMAS.2017.605.155
• Corpus ID: 55076734

Distribution of Available (DTPA-extractable) Zinc and Iron and their Relationship with Some Soil Properties in Rice Soils of Chamarajanagar District, Karnataka, India

@article{Kumar2017DistributionOA,
  title={Distribution of Available (DTPA-extractable) Zinc and Iron and their Relationship with Some Soil Properties in Rice Soils of Chamarajanagar District, Karnataka, India},
  author={M. B. M. Kumar and C. T. Subbarayappa and V. Ramamurthy},
  journal={International Journal of Current Microbiology and Applied Sciences},
  year={2017},
  volume={6},
  pages={1423-1428}
}

• M. B. Kumar, C. Subbarayappa, V. Ramamurthy
• Published 20 May 2017
• Environmental Science
• International Journal of Current Microbiology and Applied Sciences

Rice is the most important staple food crop in the world as well as in India. It serves as a major source of calories for about 60 per cent of the world population. Globally, it occupies an area of 147 m ha with production of 525 m t. Rice is grown in an area of 43.86 m ha with a production of 104.80 m t with an average productivity of 2.65 t ha -1 in India and 1.30 m ha with an annual production of 3.66 m t in Karnataka (Anon., 2015). Out of seven micronutrients zinc and iron play a vital role in crop production. Wide spread deficiencies of zinc and iron are noticed. But the incidence of zinc and iron nutrient deficiencies are increasing at an alarming rate in Indian soils on account of the use of large amounts of high chemical analysis fertilizers to hybrids and high yielding crop cultivars (Rajkumar, 1994).