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Modification of soil physical properties by addition of Fe (III) polycations: influence on plant growth
Author(s) -
SHANMUGANATHAN R. T.,
OADES J. M.
Publication year - 1982
Publication title -
journal of soil science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.244
H-Index - 111
eISSN - 1365-2389
pISSN - 0022-4588
DOI - 10.1111/j.1365-2389.1982.tb01795.x
Subject(s) - penetrometer , germination , plant growth , soil water , agronomy , yield (engineering) , chemistry , horticulture , resistance (ecology) , zoology , biology , materials science , environmental science , soil science , metallurgy
Summary The addition of 0.07 per cent Fe or more in the form of polycations decreased the total area of cracks and increased the number of transmissive pores of soils after simulated rainfall and drying. This resulted in increased per cent emergence and lower mean day of emergence of wheat plants. Per cent emergence (.v) was negatively correlated with penetrometer resistance (x). The increased germination was followed by greater plant growth, including increased plant height and yield. The Fe polycation treatments had no significant effect on root length measured at harvest.