Sandy loam

Fig. 6. Sorption and desorption of ima2ethapyr on (a) Sassfras sandy loam and (b) Webster clay loam (45) Q — sorption isotherm,...

The fact that is not radioactive means that it can be used safely in experiments in the field, but it also means that much patient work is needed to obtain results. The approach is demanding in terms of time, equipment, and skilled manpower, but it has made a great contribution to the understanding of the nitrate problem. The results that are outlined here are from experiments made by staff at Rothamsted, but key contributions have also come from Scotland and France. " The majority of the Rothamsted experiments involved winter wheat, but oilseed rape, potatoes, beans, and sugar beet were also grown. The soil is a factor in nitrate leaching, and three types were used, the flinty, silty clay loam at Rothamsted, a sandy loam at Woburn in Bedfordshire and a heavy sandy clay at Saxmimdham in Suffolk. 

Loam, sandy loam (loam content 75% or less) marly loam, sandy claysoil (silt content 75% or less) 0... 

Norfolk sandy loam Lakeland sandy loam Hagerstown silty clay loam Barnes clay loam Celeryville muck... 

Figure 1. Persistence of TCDD in Lakeland sandy loam applied at I, JO, 106 ppm and sampled after 20, 40, 80, 160, and 350 days...

Figure 3. Uptake of C-TCDD from Lakeland sandy loam hy soybeans...

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. 

Study 1. Wheat ( McNair 1813 ) was planted at the Central Crops Research Station near Clayton (Lynchburg sandy loam) and the Tidewater Research Station near Plymouth (Bayboro loam), North Carolina, at a rate of 101 kg/ha in October of 1980. The following spring or early summer, plots were set up in which a green wheat cover crop or wheat straw and stubble remaining after wheat harvest was (1) left... 

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. 

Finer-grained materials such as silts and clayey silts are typically used for monolithic ET cover systems and the top layer of a capillary barrier ET cover system because they contain finer particles and provide a greater storage capacity than sandy soils. Sandy soils are typically used for the bottom layer of the capillary barrier cover system to provide a contrast in unsaturated hydraulic properties between the two layers. Many ET covers are constructed of soils that include clay loam, silty loam, silty sand, clays, and sandy loam. 

Figure 2. Vapor diffusion of Butylate on sandy loam and silty clay loam.

In Keeton sandy loam, mobility was reduced (Figure 4), but 54.6% of the butylate remained in the 5 cm treated area, while 36.3% and 28.2% of the applied alachlor and metolachlor remained in this section. 

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

Sand Sandy Loam Silty Clay Loam... 

Reed BE, Moore RE, Cline SR. 1995. Soil flushing of a sandy loam contaminated with Pb(ll), PbS04 (s), PbCo3 (3) or Pb-Naphthalene Column results. J Soil Contamination 4(3) 243-267. 

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)...

Schjpnning P, Elmholt S, Munkholm L J, and Debosz K (2002), Soil quality aspects of humid sandy loams as influenced by different long-term management . Agric., Ecosystems Environ., 88, 195-214. 

Schery, S.D., Gaeddert, D.H., and Wilkening, M.H., Factors Affecting Exhalation of Radon from a Gravelly Sandy Loam, J. Geophys. Res 89. 7299-7309 (1984). 

Barley leaves Ephrata sandy loam 0.006b Rediske et al. (1955)... 

Bean leaves and soil (1 2) Sassafras sandy loam 0.52 Nishita Larson (1957)... 

Corn leaves Oakley sandy loam 0.0096 Sartor et al. (1968)... 

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