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Two Year Survival And Growth Of Loblolly Pine Seedlings From Two Texas Seed Sources On Lignite Minesoils, Gerald Allen Wood
Two Year Survival And Growth Of Loblolly Pine Seedlings From Two Texas Seed Sources On Lignite Minesoils, Gerald Allen Wood
Electronic Theses and Dissertations
Loblolly pine seedlings from Lost Pines (drought-hardy) and East Texas (regular) seed sources were planted in lignite minesoils in Panola County, Texas. Heights, root-collar diameters, and survival were monitored for two years. Treatments included application of Pisolithus tinctorius basidiospores immediately after planting and use of acephate for tip moth control during the second growing season. Standard foliar analyses were conducted at the end of the second growing season. East Texas seedlings grew more in height and root-collar diameter, and had higher survival percentages than Lost Pines. No growth response from treatment with P. tinctorius was observed. Treatment with acephate resulted …
Sulfate Leaching From Sulphur Binding Agents In Experimental Asphalt Pavement, Angelina County, Texas, Peter Blanchette
Sulfate Leaching From Sulphur Binding Agents In Experimental Asphalt Pavement, Angelina County, Texas, Peter Blanchette
Electronic Theses and Dissertations
Sulfate leaching from sulphur-binding agents used in asphalt pavement was significantly higher (p>.05) from four layers of a mixture of a single aggregate base material of hot sand, when compared to all other treatments. Analysis of the data showed that the other treatments had no overall effect on the soil sulfates. Four layers of a single aggregate of hot sand increased the quantity of sulfates in the soil by 107%. I recommend the use of sulphur-asphalt binder with the type "D" base material throughout construction or when two layers of the type "D" base material are placed on top …