Brassicas have been used frequently for biofumigation, a pest-management strategy based on the release of biocidal volatiles during decomposition of soil-incorporated tissue. However, the role of such volatiles in control of plant-parasitic nematodes is unclear. The goal of this study was to determine the direct localized and indirect volatile effects of amending soil with broccoli tissue on ro...

The condensation of humid air is a crucial step in conditioning and process engineering. However, the models that describe vapour presence non-condensable gas require time-consuming numerical calculations go beyond Nusselt film theory. Only small number publications exist, where simple computationally effective correlations for water are presented specially designed condenser heat exchangers. T...

Sod cutting (i.e. top soil removal) is a restoration management option for enhancing seedling establishment and for lowering the nutrient concentration in eutrophicated soils of nutrient-poor species-rich grasslands. Removal of the upper soil changes not only abiotic soil properties but may also affect the resident soil community. We investigated the effects of sod cutting on the establishment ...

The inspection of industrial tubes such as those present in heat exchangers or boilers for defects using established methods generally requires careful cleaning of the tubes. This is time consuming and as a result cost-intensive. A fast screening tool based on ultrasonic guided wave technology, which minimizes the need for cleaning, is presented. A specially designed ultrasonic probe to excite ...

Population development of Tylenchulus semipenetrans in dry soil was investigated in a greenhouse study. Citrus seedlings were grown in sandy soil in vertical tubes with upper and lower sections. Nematode population densities in the upper tubes were measured at 16, 23, and 37 days, post-treatment. Three treatments consisted of i) irrigating both tubes when soil water potential reached -1 5 kPa (...

Batch sorption experiments were carried out with the bacteriophages MS2 and phi X174. Two types of reactor vessels, polypropylene and glass, were used. Consistently lower concentrations of MS2 were found in the liquid phase in the absence of soil (control blanks) than in the presence of soil after mixing. High levels of MS2 inactivation (approximately 99.9%) were observed in control tubes made ...