ScienceJohn Michels (Journalist) 1934 |
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Page 61
... soils of Arizona , the reaction of which is about pH 8.1 to 8.5 . The important factor of CO2 evolution by plant roots and its reduction of the pH in the root- soil contact zone was emphasized . Determinations of inorganic phosphate in ...
... soils of Arizona , the reaction of which is about pH 8.1 to 8.5 . The important factor of CO2 evolution by plant roots and its reduction of the pH in the root- soil contact zone was emphasized . Determinations of inorganic phosphate in ...
Page 181
... soils . His researches on the utilization of nitrogen by plants , especially upon the soil reactions that influence the avail- ability of nitrogen to plants , are outstanding contribu- tions . His work in general on soil reactions that ...
... soils . His researches on the utilization of nitrogen by plants , especially upon the soil reactions that influence the avail- ability of nitrogen to plants , are outstanding contribu- tions . His work in general on soil reactions that ...
Page 212
... soil through the walls of the pot . Jones1 has demon- strated the fallacy of this assumption and his con- clusions are strikingly supported by data obtained in some soil potential studies . In an attempt to measure the potentials of soils ...
... soil through the walls of the pot . Jones1 has demon- strated the fallacy of this assumption and his con- clusions are strikingly supported by data obtained in some soil potential studies . In an attempt to measure the potentials of soils ...
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