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  • SSNM approach
  • SSNM in three steps
  • Initial concept of SSNM
  • Current version of the SSNM approach
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  • Principles of N management
  • Background on making an N Recommendation
  • Using the SSNM approach to formulate locally adapted N recommendation
  • Using the Leaf Color Chart (LCC) for fertilizer N management
  • FAQs on N Management
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  • Principles of P and K management
  • Background on making P and K recommendations
  • Using SSNM approach to formulate P recommendations
  • Using SSNM approach to formulate K recommendations
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  • Bangladesh
  • China
  • India
  • Indonesia
  • Myanmar
  • Philippines
  • Vietnam
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  • Introduction to SSNM version 1.1
  • N management
  • P&K management
  • Implementing SSNM recommendations
  • Making an SSNM recommendation for rice
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  • SSNM: an approach for optimizing nutrient use in intensive rice production
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  • Nutrient omission plot
  • Potassium addition plot
  • Zinc addition plot

Uttaranchal, India

		Team Leader   Dr. Brahma Mishra Professor of Soil Science College of Agriculture G.B. Pant Univ. of Agric. and Technology Pantnagar, 263145, U.P., India E-mail: b_mishra_2001@yahoo.com
Site Characteristics   Uttar Pradesh is a large rice-growing province in northern India. Much of the arable land in the province is part of the Indo-Gangetic Plains, where rice-wheat rotation is the major cropping system. Uttaranchal is a small province formed in 2000 from part of Uttar Pradesh. The lowland area by Pantnagar in Uttaranchal is representative of the rice-wheat cropping system extending across Uttar Pradesh §       Rice is grown in the rainy (kharif) season from mid June until the end of October. §       Wheat is grown in the winter (rabi) season from November until the end of March.

The hot and dry summer season from April to June is a fallow period.

The climate in Uttaranchal is subtropical. The average annual rainfall at Pantnagar was 1350 mm in 1989−1999. The soils near Pantnagar mostly developed on the calcareous outwash of alluvial deposits and are classified as deep to very deep mollisols. Soil textural classes are clay, sandy clay, and sandy clay loam.

Development and Evaluation of SSNM

On-farm research for the development of SSNM in Pantnagar, Uttaranchal began in 1997. Since 2001, on-farm research focused on the refinement and evaluation of refined SSNM strategies in pilot villages around Pantnagar. Recent SSNM activities in Uttaranchal included 1) participatory on-farm research and evaluation of N management options, 2) examination of responses to fertilizer K application, and 3) dissemination of SSNM strategies in pilot villages.

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