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Effects of Varying Soil Moisture Upon the Nutrient Uptake of Four Bottomland Tree Species
Author(s) -
Hosner John F.,
Leaf Albert L.,
Dickson Richard,
Hart James B.
Publication year - 1965
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/sssaj1965.03615995002900030025x
Subject(s) - permanent wilting point , wilting , moisture , seedling , water content , soil water , agronomy , fraxinus , environmental science , nutrient , horticulture , field capacity , botany , chemistry , biology , soil science , ecology , geology , organic chemistry , geotechnical engineering
Tupelo gum, pin oak, green ash, and sycamore seedlings ( Nyssa aquatica L., Quercus palustris M., Fraxinus pennsylvanica M., and Platanus occidentalis L., respectively) were subjected to four soil moisture regimes for 84 days in greenhouse soil cultures. The moisture regimes included (i) saturated soil, (ii) moisture equivalent: return to moisture equivalent daily, (iii) 50% available water: return to moisture equivalent when 50% of the available water had been removed, and (iv) wilting point: return to moisture equivalent when the wilting point had been reached. Comparisons among species and treatments were made on dry weight per seedling top, and contents per seedling top and foliar concentrations of ash, N, P, K, Ca, and Mg. Generally the seedling top weight and nutrient uptake for pin oak, green ash, and sycamore showed the following trend: saturated soil < moisture equivalent > 50% available water > wilting point. Similar data for tupelo gum showed only decreasing values with increasing moisture stress from saturated soil to wilting point. Generally, tissue nutrient concentrations tended to be low for seedlings subjected to saturated soils and high for those subjected to wilting point regime, thus moisture treatments apparently affected growth more than nutrient absorption.