Relationship between availability indices and plant uptake of nitrogen and phosphorus from organic products

@article{Velthof1998RelationshipBA,
  title={Relationship between availability indices and plant uptake of nitrogen and phosphorus from organic products},
  author={Gerard L Velthof and Marinus L. van Beusichem and W.M.F. Raijmakers and Bert H. Janssen},
  journal={Plant and Soil},
  year={1998},
  volume={200},
  pages={215-226}
}
A better knowledge of the plant-availability of nitrogen (N) and phosphorus (P) in organic products may help to improve the efficient use of these products as fertilizers. In the present study, availability indices for N and P of nine widely differing organic products obtained by different fractionation methods were compared with the plant uptake of N and P from these products. The fractionation methods included CaCl2 extraction, thermal fractionation (heating of organic products), and pepsin… CONTINUE READING

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