Resource conservation technology for weed management

Conservation Tillage and Weed Management

Tillage has long been an essential component of traditional agricultural systems. Broadly defined, tillage is the mechanical manipulation of the soil and plant residues to prepare a seedbed for crop planting. The benefits of tillage are many: it loosens soil, enhances the release of nutrients from the soil for crop growth, kills weeds, and regulates the circulation of water and air within the s...

Weed Control for Conservation Tillage

Introduction Conservation tillage systems using sweep plows or field cultivators leave a high percentage of crop residues on the soil surface, which protects the soil from wind and water erosion (Johnson, 1950; Jones and Johnson, 1982; Allen and Fenster, 1986; Johnson et al., 1974). These systems have been successful in semiarid areas because meager rainfall after plowing does not allow weeds t...

Adaptive Resource Management Technology for Satellite Constellations

This manuscript describes the Sensor Web Adaptive Resource Manager (SWARM) project. The primary focus of the project is on the design and prototyping of middleware for managing computing and network resources in a way that enables the information systems of satellite constellations to provide realtime performance within dynamic environments. The middleware has been prototyped, and it has been e...

Fixed Costs, Efficient Resource Management, and Conservation

This article develops a framework to analyze the impacts on resource development of efficient management practices that account for possible resource conserving technological changes. Compared with the traditional management practice ignoring these changes, efficient management may not delay or reduce resource development, depending on the level of the changes. Under efficient management, a hig...

Herbicide Resistant Weeds: The Technology and Weed Management