There has been much debate as to the relative merits of belt conveyors with ploughs vs. chain-slat conveyors with gates for this application. There are experienced engineers in strong support of each alternative. In many cases, the strength of the support for one type is due to bad experience with a poorly designed or under-capacity conveyor of the other. Unfortunately, the majority of conveyor...

on-farm experiments were designed to investigate the response of maize establishment and grain yield to variation in tillage systems. the tillage treatments included arara ploughing followed by zig-zag harrowing and arara ridging (t1); emcot ploughing fol-lowed by zig-zag harrowing and emcot ridging (t2); mouldboard ploughing followed by disc harrowing and mouldboard ridging (t3); disc ploughin...

The power of technology to transform religions, science, and political institutions has often been presented as nothing short revolutionary. Does have a similarly transformative influence on societies’ morality? Scholars not rigorously investigated the role in moral revolutions, even though existing research technomoral change suggests that this may be considerable. In paper, we explore what un...

The Municipality of Anchorage (MOA), at 61 degrees north latitude, ploughs and hauls snow from urban streets throughout the winter, incorporating grit and chloride applied to street surfaces for traffic safety. Hauled snow is stored at snow disposal facilities, where it melts at ambient spring temperatures. MOA studies performed from 1998 through 2001 show that disposal site melt processes can ...

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...

The vertical distribution of weed seeds in the soil is of fundamental importance because seedling emergence depends on seed depth. The lateral displacement of the earth during mouldboard ploughing contributes to the dispersal of the weeds inside the tilled field. In order to model vertical and lateral seed displacements during ploughing, an existing model describing soil particle movements for ...