Abstract
Inositol phosphate is at least equal to KH2PO4 as a source of P for the growth of lupins in sand but a much poorer source in soil. RNA and glycerophosphate were excellent sources of P for lupin growth in a P-fixing soil. Soil and root phosphatase activity were not altered by amendment of soils with either inorganic- or organic-P. The difference in availability of differing P-sources is related to their solubility in soils rather than susceptibility to phosphatases.
Original language | English |
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Pages (from-to) | 107-113 |
Journal | Plant and Soil: An International Journal on Plant-Soil Relationships |
Volume | 145 |
DOIs | |
Publication status | Published - 1992 |