The Wilting Point and Available Moisture in Tropical Forest Soils of Nigeria
- 1 January 1974
- journal article
- research article
- Published by Cambridge University Press (CUP) in Experimental Agriculture
- Vol. 10 (4), 305-312
- https://doi.org/10.1017/s0014479700006098
Abstract
SUMMARY Availability of soil water was investigated and the methods of determining the lower limit of availability by biotic and standard 15-bar pressure were compared. Greenhouse-grown sunflower and okra were the test crops for the biotic method. The pressure membrane equipment was used for standard 15-bar moisture determination. Okra and sunflower took up water beyond the standard 15-bar tension, thus lowering the moisture content at moderate wilting below the generally accepted values. In topsoil okra wilted at very high tensions, but at somewhat lower tensions in subsoil samples, unlike sunflower which wilted at higher tensions in subsoil samples. An equation is given which may be used to estimate the moisture content at the moderate wilting point of plants with known wilting tensions.Keywords
This publication has 8 references indexed in Scilit:
- AVAILABLE WATER CAPACITIES OF ZAMBIAN SOILS IN RELATION TO PRESSURE PLATE MEASUREMENTS AND PARTICLE SIZE ANALYSISSoil Science, 1972
- PLANT AND SOIL FACTORS IN PERMANENT WILTING PERCENTAGES AND FIELD CAPACITY STORAGESoil Science, 1967
- THE INFLUENCE OF TEXTURE ON THE MOISTURE CHARACTERISTICS OF SOILSEuropean Journal of Soil Science, 1965
- RATE OF SOIL DRAINAGE FOLLOWING AN IRRIGATION.: III. A NEW CONCEPT OF THE UPPER LIMIT OF AVAILABLE MOISTURECanadian Journal of Soil Science, 1962
- The significance of the permanent wilting percentage in studies of plant and soil water relationsThe Botanical Review, 1957
- PERTINENT FACTORS GOVERNING THE AVAILABILITY OF SOIL MOISTURE TO PLANTSSoil Science, 1956
- Soil Moisture Studies of Some Great Plains Soils: II. Field Capacity as Related to 1/3-Atmosphere Percentage, and “Minimum Point” as Related to 15- and 26-Atmosphere PercentagesSoil Science Society of America Journal, 1955
- METHODS OF MEASURING FIELD CAPACITY AND PERMANENT WILTING PERCENTAGE OF SOILSSoil Science, 1949