Exchangeable sodium accumulation and replacement in Southeast Texas soils under turfgrass /
10 municipal water districts were studied. Irrigation water
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1995.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | 10 municipal water districts were studied. Irrigation water accumulation but exchangeable Na also increased as a function accumulation, and evaluated response of sodic soil to amendments. The Ap, E, and Bt horizons of 18 turf soils in degree of Na accumulation in Southeast Texas soils under each column in four depth increments. Significantly less each column were collected at intervals of 12 h and analyzed exchangeable Na and lower SAR of the soil waters were found exchangeable Na in soil depths of 15 and 30 cm. The soil for sodium adsorption ratio (SAR) and soluble bases. found to be the best single variable to model soil Na greater for the amended treatments than for the control. gypsum, a common amendment for sodic soil reclamation, to high Na waters of low salinity. This study assessed the in the lower sections of the soil columns, and Ksat was irrigated turfgrass, tested models predicting Na langbeinite. A column leaching experiment using sodic water Many municipal water supplies in Southeast Texas have a montmorillonitic, thermic Ruptic Vertic Albaqualf) amended Most soils of this area are dominated by smectitic clays that of years of irrigation. The multiple regression equation: predicted SARE to a depth of 30 cm. This study also compared relatively high level of Na+ and low total dissolved solids. respond to wetting by swelling, especially when wetted with SARE = -5.16 + 0.53 SARiw + 4.04 In (yr) (R2 = 0.86) best Saturated hydraulic conductivity (Ksat) was calculated. At sodicity (SARiw) and salinity (ECiw) were strongly correlated the end of the experiment, soil samples were removed from was conducted on a sodic, non-saline Boonville soil (fine, water at depths of 7.5, 15 and 22.5 cm and the effluent from with gypsum and langbeinite at rates equivalent to with soil sodicity (SARE) and salinity (ECe). The SAR,W was |
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| Item Description: | "Major subject: Soil Science". Vita. |
| Physical Description: | viii, 110 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references. |