Highlights of the Recommendations of Inter Ministrial Task Force On ...

Evaluation of Phospo- Sulpho-Nitro Compost
under different Cropping Systems
Treatment Soybean wheat Sorghum wheat
Control 6.55 13.29 13.30 6.67
75% NPK 8.00 23.84 27.58 16.14
100%NPK 8.76 28.12 31.53 17.80
75%NPK 10.12 32.84 34.90 24.42
+Compost
Soybean +
wheat
sorghum
11.59
9.28
17.68
22.50
22.96
27.94
2810
32.10
Source:- Manna M.C et al. Indian Institute of Soil Science (ICAR),
Bhopal, PP 11 Bulletin No. 02/2006
Economic advantages of Phosphor-Sulfo-Nitro compost
• In a three years field study on soybean-wheat system, application of 100 % NPK through
enriched compost to soybean and 50% NPK to success ding wheat produced the highest
yield and saved 25 kg N and 39.2 kg P/ha.
• A five years field study on vertisols revealed that compost application @ 5 t ha in
combination with 75% NPK to soybean applied to wheat produced higher productivity in
soybean-wheat, sorghum-wheat, and soybean sorghum –wheat system compared to 100%
NPK treatment and saved 37 kg N.30 kg P and 15kg K.
• To improve soil biological activities phosphor-sulpho- Nitro compost along with chemical
fertilizer application is the best option compared to inorganic fertilizer alone. The use of
enriched manure in field crops is also economically viable and safe to the environment.
12/16/2009
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