Soil Moisture Tension and Pore Space Relations for Several Soils in the Range of the “Field Capacity”

Smith, Richard M.; Browning, David

doi:10.2136/sssaj1948.036159950012000c0004x

Cited by 8 publications

(5 citation statements)

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“…depth of wetting has also been shown to influence the rate of downward water movement [Baver, 1936;Colman, 1944;Smith and Browning, 1947]. The presence of an actively-growing crop may decrease or increase the amount of water lost by deep percolation, depending upon the rooting depth of the crop and the' quantity of water applied [Robins, et al, 1954].…”

Section: Soil-water Contentmentioning

confidence: 99%

Water movement through Panoche clay loam soil

Nielsen¹,

Davidson²,

Biggar³

et al. 1964

Hilg

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with tensiometers. Some experiments have involved measurements of tension only, while others have included corresponding changes in soil water content. Investigations by Israelsen [1918] ,8 Israelsen and West [1922], Scofield and Wright [1928], and Edlefsen and Bodman [1941] typify early endeavors to ascertain the water-storage capacity of soils. Soil water was measured gravimetrically in field plots before and after heavy irrigations. In addition to the quantity of water stored, the amount of water passing through soil profiles during extended periods of drainage was measured. In the case of the latter investigation it was found that the average rate of water lost from a 5-foot profile over a period of 2 days after irrigation to 30 days after irrigation was approximately 0.1 inch per day. Using a neutron meter to measure soil water repeatedly at the same depths within several field profiles, Burrows and Kirkham [1958] studied the redistribution of applied water under the action of gravity to define field capacity. The field capacity of each 6-inch layer to a depth of 5 feet was defined on the basis of the shape of the drainage curves.

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Section: Soil-water Contentmentioning

confidence: 99%

Water movement through Panoche clay loam soil

Nielsen¹,

Davidson²,

Biggar³

et al. 1964

Hilg

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show abstract

“…speed of the determination, would be lost. Further it is not easy to determine quickly the correct tension to apply, for the soil moisture tension at FC, measured under natural conditions with a tensiometer, may not be the same as that required in the laboratory to obtain an accurate estimate of FC (Smith and Browning, 1947;and Richards and Wadleigh, 1952).…”

Section: Discussionmentioning

confidence: 99%

The Available‐water Capacity of a Sandy Loam Soil

Salter¹,

Haworth²

1961

Journal of Soil Science

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T o assess the effects of cultural and manurial treatments on the available-water capacity of a sandy loam soil it was necessary to determine the upper and lower limits of the available water.The results of determining the moisture content of the soil at field capacity (FC) by two methods have been compared. It has been found that the direct method involving soil sampling after irrigation and when drainage had almost ceased, gave more accurate and consistent results than the suction-plate method using any single tension.With the soil which had received farmyard manure, the permanent wilting percentage (PWP) determined on undisturbed cores and on crushed samples of soil by the sunflower technique showed significant differences and for critical work the results of determinations made on soil cores were preferred. T h e desiccator method of determining PWP was found to be insufficiently accurate for use in this type of work.

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“…They obtained tensiometer readings of 44 to 166 cm of water tension at field capacity four days after irrig ation (one-third atmosphere is equal to 345 cm of water). Smith and Browning (1948) reported a similar range of 25 to 125 cm of water tension at the field capacity of well-drained field soils in West Virginia. Miller and McMurdie (1953) reported a range of 81 to 188 cm of water for field capacity as determined by the moist upper layer in soil columns.…”

Section: ) "mentioning

confidence: 71%

The availability of soil moisture to plants

Sykes

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Soil Moisture Tension and Pore Space Relations for Several Soils in the Range of the “Field Capacity”

Cited by 8 publications

References 0 publications

Water movement through Panoche clay loam soil

Water movement through Panoche clay loam soil

The Available‐water Capacity of a Sandy Loam Soil

The availability of soil moisture to plants

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