Sandy loam soil

B. Jensen, Rhizodeposition by C pulse labelled spring barley grown in small field plots on sandy loam. Soil Biology ami Biochemistry 25 1553 (1993). 

Soybean dry matter production. One week after planting in the pipes, two-hundred-forty 0.7 liter styrofoam cups with four holes in the lower sides of each were filled with a 2 cm layer of pea gravel, then filled to within 1 cm of the top with a 1/1/1 v/v/v mix of perlite, coarse sand and a sandy loam soil. Each cup was planted with three soybean seed ( Centennial or Coker 136 ) previously coated with Nitragin. The seed were covered with 1 cm of soil mix and watered with tap water. 

Soil. Approximately 5 pounds of air-dried Hanford fine sandy loam soil were selected from a lima bean field in an area where all plants had been killed by wire worms. The pH of a water slurry of this soil was 7.70. It was screened through a 20-mesh sieve, blended, and stored in a closed can. 

Figure 3. Heats of adsorption for Butylate, Alachlor, and Metolachlor in sandy loam soil.

The kinetics of transformation of Mn and Fe among soil fractions is related to the redox potential (Eh changes) as well as the content of reductants or oxidants in the soil. Generally, a drop in Eh is observed within a few days of the waterlogging of a soil. In a coastal saline silty-clay soil, Eh was reduced to 210 mV after four days of submergence (Bandyopadhyay and Bandyopadhyay, 1984). The decrease in Eh mobilized Mn, and the maximal soluble Mn concentration was found after 14 days of submergence in a sandy-loam soil (Sadana and Takkar, 1988). 

Figure 8.1. The accumulation of trace elements in two Californian soils. The soils received four-year sludge applications at the rate of 0, 22.5, 45, and 90 tons ha-1 year 1. Domino loam soil, fine-loamy, mixed, thermic Xerollic Calciorthid Greenfield sandy loam soil, coarse-loamy, mixed, thermic Typic Haploxeralf (Data extracted from Sposito et al., 1982)...

Chander K, Brookes PC (1993) Residual effects of zinc, copper and nickel in sewage sludge on microbial biomass in a sandy loam. Soil Biol Biochem 25 1231-1239... 

Sediment desorption t,/2 = 42.4 d from sediment under conditions mimicking marine disposal (Zhang et al. 2000). Soil biodegradation rate constant k = 0.0024 d with t,/2 = 294 d for Kidman sandy loam soil, and k = 0.0033 d with t,/2 = 211 d for McLaurin sandy loam soil (Park et al. 1990) ... 

Fryer, J.D., R.J. Hance, and J.W. Ludwig. 1975. Long-term persistence of paraquat in a sandy loam soil. Weed Res. 15 189-194. 

Fate of plant viruses after a soil solarization treatment was almost completely ignored by researchers, as only one study documented a stabilizing effect of heat treatment on tobacco mosaic virus degradation in a sandy loam soil (Triolo and Materazzi 1992). 

Bhatnagar A, Bareth SS. Effect of soil moisture on the survival of entomopathogenic nematode, Heterorhabditis bacteriophora Poinar 1976, in sandy loam soil. Pest Manag Econ Zool. 2003 11 1-6. 

Standard soil samples were prepared as follows 50g aliquots of the fresh sandy loam soil were slurried with lOmL of organics-free water and were spiked with various amounts of pentachlorophenol. The spike was added in lOOpL of methanol to the wet soil and was allowed to equilibrate with the soil for lh. Stable-labelled pentachlorophenol was added at 4ppb and was also allowed to equilibrate with the soil for lh. 

Endrin tends to persist in the environment mainly in forms sorbed to sediments and soil particles. A conservative estimate of its half-disappearance time in sandy loam soils is approximately 14 years (41% of endrin applied still remained in the soil after 14 years) (Nash and Woolson 1967). Therefore, the exposure risks from endrin to the general population of the United States are likely to steadily decrease over time. 

Figure 3. Aquatic model ecosystem. Aquarium (90 X 35 X 45 cm) divided by a glass barrier with holes. Components 50 L of Freemans standard reference water and 7 kg Katano sandy loam soil.

Skiba U, Smith KA, Fowler D. 1993. Nitrification and denitrification as sources of nitric oxide and nitrous oxide in a sandy loam soil. Soil Biology and Biochemistry 25 1527-1536. 

Soils. Granite Reef soil is a sandy loam soil, supplied by the U.S. Water Conservation Laboratory, USDA, Phoenix, AZ. Walla Walla soil is a soil which contains 30% clay and organic matter, supplied by the Columbia Plateau Conservation Research Center, USDA, Pendleton, OR. 

Acenaphthylene in an unacclimated agricultural sandy loam soil (30.4 mg/kg) was incubated at 10 and 20 °C. After 60 d, acenaphthylene was not detected. The estimated biodegradation half-lives for acenaphthylene in aerobic soil ranged from 12 to 121 d (Coover and Sims, 1987). 

---