All India Coordinated Project of Micro and Secondary Nutrients
and
Pollutant Elements in Soils & Plants

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Research achievements :

1. Delineated areas deficient in zinc, copper, iron, manganese, sulphur and district wise and agroecozone wise soil fertility maps have been prepared. Areas of multinutrient deficiencies are also identified.

2. Bulletin on visual symptoms of micronutrients and sulphur, Bull. on Sulphur nutrition of oilseeds and pulses , and a book on Gandhak ka mruda tatha podhon main samuchit Pravandh have been published for user agencies. Each centre has published 25 yrs of micronutrient research.

3. Soil application of 5-10 kg Zn /ha and 1.0-1.5 kg B/ha, 20-40 kg S /ha is found optimum to control zinc deficiency in most crops. It has residual effect to the 4-6 crops. Most crops show response more than B:C ratio of Rs.5-32:1.

4. Foliar spray of 0.5 to1.0 percent iron and manganese sulphate solution 3-5 times on standing crops was found beneficial to correct their deficiencies in field crops and orchards.
5. Manganese deficiency can be corrected by application of 0.5-1.0 manganese sulphate solution on early stage of growth. Durum wheat cultivars are more susceptible to manganese deficiency than aestivum cultivars; so susceptible cultivars need more sprays compared to tolerant genotypes by crops.

6. IPNS technology comprising green manure, 8-10 t FYM, 3-5 t/ha poultry manure, 1.5-2.5 t/ha piggery manure could efficiently reduce the zinc requirements and enhances use-efficiency of native micronutrients pools during crop growth.

7. Micronutrient enrichment and seed treatment technology to reduce input cost has been developed and found beneficial.

8. Monitoring the areas having heavy metal pollution through sewage, industrial effluents and developing technologies for utilizing such contaminated soils and nutrient potential of sewage for raising crop with minimal soil environmental degradation.