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Relation of Soil Moisture to Ion Absorption by Corn Plants
Author(s) -
Mederski H. J.,
Wilson J. H.
Publication year - 1960
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1960.03615995002400030009x
Subject(s) - permanent wilting point , water content , moisture , field capacity , environmental science , humidity , agronomy , wilting , soil water , soil science , chemistry , geology , biology , physics , geotechnical engineering , organic chemistry , thermodynamics
A split‐root technique was devised in which the top portion of the roots of corn plants developed in sand culture while the remaining portion of the root system developed in soil adjusted to seven known moisture contents in the range of wilting point to field capacity. With this system, plants were grown from seed for a 25‐day period without addition of water to the soil and with only a small loss of the original soil water content. Plants were grown at two levels of atmospheric humidity at each level of soil moisture. Dry weight of plant tops and roots developed in the soil increased linearly with increasing soil moisture. Both percent and total P, K, and Mg in the plants increased with increasing level of soil moisture. Level of humidity appears to interact with the effect of soil moisture on ion absorption.