Accumulation and replacement of exchangeable sodium in soils of Southeast Texas under turfgrass and its effect on soil infiltration rate /
(IR) which were lower than the untreated plots suggesting a
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| Format: | Thesis eBook |
| Language: | English |
| Published: |
[Place of publication not identified] :
[publisher not identified] ;
1996.
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| Subjects: | |
| Online Access: | Link to OAKTrust copy |
| Summary: | (IR) which were lower than the untreated plots suggesting a 01 0 cm depth for all sites, but treatment rates did not show a significant difference for each site in the same depth. Application of gypsum resulted in similar infiltration rates are the major clays in soils of this area. This study assessed the degree of Na accumulation on cation exchange content in the 0-10 cm depth was not correlated with IR at decrease with application of gypsum, untreated soils also depths and times. Even though the pH of the soils tended to developed by roots may enable water to enter the soil in especially when wetted with high Na waters of low salinity extractable Ca and Na in some plots and some depths. Treated gypsum treatments statistically affected the levels of had more than 20 % clay within the 0- IO cm depth. Clay infiltration rate to different rates of gypsum amendment by Levels of extractable Na were statistically lower for treated Many municipal water supplies in Southeast Texas have a montmorillonitic, thennic Ruptic Vertic Albaqualf) amended on a sodic, non-saline Boonville soil (fine, plots had higher extractable Ca than untreated plots for the plots than untreated ones for the 0- I 0 cm depth at all relatively high level of Ne and low total dissolved solids. showed a decrease in pH over the course of the study and pH significant difference between treated and untreated soils 9 significant effects on levels of extractable Mg and K at all sites as affected by gypsum treatments in soils that support sites. For all sites gypsum application did not have Smectitic clays which respond to wetting by swelling, spite of clay content and degree of sodic character. The statistical difference between treatments. Soils of the study area varied somewhat in textural class, but generally the 20-min measurement. These results suggest the channels the exchangeable Na in the soil to a depth of 15 cm. treated and untreated soils had similar IR with no turfgrass (bermudagrass) and the response of soil using rainfall simulation. A field experiment was conducted was not statistically significant. with gypsum at rates equivalent to 5 0%, I 00% and 200% of wk after application. However, at 36 wk after application, |
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| Item Description: | "Major subject: Soil Science". Vita. |
| Physical Description: | xii, 101 leaves : illustrations ; 28 cm. Also available online. Issued also on microfiche from Lange Micrographics. |
| Bibliography: | Includes bibliographical references: pages 57-60. |