Summary
A nutrient-rich compost from paddy straw was prepared using urea and Mussoorie rock phosphate for N and P enrichment respectively. Inorganic N was partly conserved in the compost by the addition of pyrite. Citric-acid-soluble P also increased with the addition of pyrite. Compost containing about 1.6% total N and 3.3% total P was found to be a good source of P for a wheat crop and also supplied a significant amount of N to the plants.
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Bangar, K.C., Shanker, S., Kapoor, K.K. et al. Preparation of nitrogen and phosphorus-enriched paddy straw compost and its effect on yield and nutrient uptake by wheat (Triticum aestivum L.). Biol Fert Soils 8, 339–342 (1989). https://doi.org/10.1007/BF00263166
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DOI: https://doi.org/10.1007/BF00263166