tillage usually has been found to increase b compared with moldboard and chisel plow (Kitur et al., 1993; Lal, Tillage impacts on soil properties differ among soils. This study 1999). Bulk density usually is lowest immediately after investigated tillage, cropping, and wheel traffic (WT) effects of 13-yr of no-tillage (NT), chisel plow (CP), and moldboard plow (MP) under tillage and increases wi...

rotation is also more effective in preventing deep leaching of nitrate N than continuous corn (Katupitiya et al., Reduced tillage, including no-till, and crop rotation are common 1997; Varvel and Peterson, 1990). Reduced stress from practices for corn (Zea mays L.) and soybean [Glycine max (L.) Merr.] production in the Midwest. Benefits of no-till vary with latitude pests may be one of the reas...

RedBlade is a multi-functional autonomous vehicle with two seasonal configurations which allow it to plow snow in the winter and mow grass in the summer. This vehicle participated in the Institute of Navigation’s (ION) 1 st Autonomous Snowplow Competition in January 2011 and in the 8 th ION Robotic Lawnmower Competition in June 2011. It won 2 nd place in the former. This report presents the des...

Dirty Tangible Interfaces (DIRTI) are a new concept in interface design that forgoes the dogma of repeatability in favor of a richer and more complex experience, constantly evolving, never reversible, and infinitely modifiable. We built a prototype based on granular or liquid interaction material placed in a glass dish, that is analyzed by video tracking for its 3D relief. This relief, and the ...

As we begin a new millennium and contemplate how our current understandings might be evaluated in 1000 years, it may be useful to look backward. What pieces of knowledge do we treasure that come from 1000 years ago? Accounts from the end of the last millennium herald innovations like the metal plow but were imbued with folk knowledge from an era when trolls, fairies, and personifications of the...

A z-pinch capillary plasma as an alternative active medium of soft X-Ray lasers was studied experimentally and theoretically. The theoretical analysis was based on the self consistent solution of the so called “snow plow” model. The dynamics of pinched plasma is determined by the capillary parameters and by the time dependence of electrical current passing through it. The current time dependenc...

The paper presents the results of comparative field studies tillage quality commercial and combined (for primary layer-by-layer tillage) plow bottoms in terms plowing parameters, particular, completeness crop residue incorporation density tilled soil layers. study are directed to a wider introduction technical means intoproduction that provide conditions for resource saving when performing with...

Accurate description of soil surface topography is essential because different tillage tools produce different soil surface roughness conditions, which in turn affects many processes across the soil surface boundary. Advantages of fractal analysis in soil microrelief assessment have been recognised but the use of fractal indices in practice remains challenging. There is also little information ...