Journal of Soil and Water Conservation back issues from January 2000:
Is Sustainable Agriculture a Fallacy?
Jan 01, 2000; ... According to the United Nations Population Fund, the world's population has reached and exceeded 6 billion with the birth of 370,000 children on October 11, 1999. Population has doubled since 1960 and it is projected to reach 9 billion by the year 2050. Schools of thought are divided ...
Equipment Technologies for Precision Agriculture.
Jan 01, 2000; ... ABSTRACT: Precision Agriculture (PA) is a relatively new farm management strategy that allows agriculturists to quantify and manage the spatial variability in farm fields. Many significant developments in the machinery used for PA have occurred during the last few years. The purpose of ...
Factors Influencing the Profitability of Precision Farming Systems.
Jan 01, 2000; ... ABSTRACT: The emerging site-specific management (SSM) technologies will allow farmers to manage each parcel of land in a manner consistent with its unique endowments. The consequence of reducing the scale of land area that is managed uniquely is to substantially reduce the number of ...
Using water markets to improve environmental quality: Two innovative programs in Nevada.
Jan 01, 2000; ... ABSTRACT: Economists have long advocated the use of market mechanisms as a means to improve environmental quality at minimum cost. Voluntary water purchase programs are an example of such a policy. This paper examines the structure and performance of two water right purchase programs ...
REMM: The Riparian Ecosystem Management Model.
Jan 01, 2000; ... ABSTRACT: Riparian buffer zones are effective in mitigating nonpoint source pollution and have been recommended as a best management practice (BMP). The Riparian Ecosystem Management Model (REMM) has been developed for researchers and natural resource agencies as a modeling tool that can ...
Extending' the RUSLE with the Monte Carlo error propagation technique to predict long-term average off-site sediment accumulation.
Jan 01, 2000; ... ABSTRACT: To evaluate if the adaptation of the basically two-dimensional Revised Universal Soil Loss Equation (RUSLE) to a three-dimensional reality is appropriate for predicting off-site sediment accumulation, it was extended with the Monte Carlo error propagation technique. This ...
Are green lots worth more than brown lots? An economic incentive for erosion control on residential developments.
Jan 01, 2000; ... ABSTRACT Construction sites are major contributors to nonpoint source (NPS) pollution. However, a lack of personnel to enforce erosion control regulations and limited voluntary compliance means that few developers apply effective erosion control. New approaches are needed to increase ...
Profitability of alternative production and tillage strategies for dryland wheat and grain sorghum in the Central Great Plains.
Jan 01, 2000; ... ABSTRACT: Three tillage systems used in continuous cropping and rotations with wheat (Triticum aestivum L.) and grain sorghum /Sorghum bicolor (L.) Moench] were compared. Experiment station yield data and annual price data from 1986 to 1995 were coupled with 1995 cost-of-production ...
Evaluation of management practices for converting grassland back to cropland.
Jan 01, 2000; ... ABSTRACT: Minimum-till (MT) and no-till (NT) systems were evaluated for converting seeded grassland back to cropland. Nitrogen fertilization needs to optimize grain yields following grass and to optimize hay yields from the grassland were also evaluated. Tillage treatments -- conventional ...
Nitrogen and phosphorus management on Wisconsin farms: Lessons learned for agricultural water quality programs.
Jan 01, 2000; ... ABSTRACT: Farming systems that combine animals forage, and cash grain production have the opportunity to augment commercial fertilizers with nutrients generated on a farm. To do this, the farmer must weigh the economic benefits associated with a low-risk option of relying on commercial ...
Soil quality indicator properties in mid-Atlantic soils as influenced by conservation management.
Jan 01, 2000; ... ABSTRACT: Soil quality or condition is best assessed by soil properties that are neither so permanent as to be insensitive to management, nor so easily changeable as to give little indication of long-term alterations. Thirteen such intermediate properties were evaluated for potential ...
No-tillage soybean performance in cover crops for weed management in the western Corn Belt.
Jan 01, 2000; ... ABSTRACT: Frequency of soil moisture depletion and subsequent crop yield reduction resulting from water use by cover crops is unclear. Effects of cover crop residues and irrigation on soybean emergence, canopy volume, grain yield, and soil moisture in eastern Nebraska were determined Cover ...
EPIC modeling of the effects of farming practice changes on water quality in two Lake Erie watersheds.
Jan 01, 2000; ... ABSTRACT: Agriculture's contributions to Lake Erie water quality problems have been a concern for the past three decades. This research investigates the relationship between changes in water quality and changes in farming practices in two Lake Erie tributaries. Using the Erosion ...
Growth predictions for tree species planted on marginal soybean lands in the Lower Mississippi Valley.
Jan 01, 2000; ... ABSTRACT: The establishment of bottomland hardwood forest stands and riparian buffers on frequently-flooded soybean (Glycine max.) lands in the Lower Mississippi Valley represents a tremendous opportunity to provide both economic and environmental benefits to the region. Selecting ...
Forest road sideslopes and soil conservation techniques.
Jan 01, 2000; ... ABSTRACT Forest road sideslopes have been identified as one of the major sources of erosion losses from managed forest systems. Stabilization by vegetation has shown the greatest potential for mitigation of soil erosion on forest road sideslopes. Sediment and runoff production from a wood ...
A device for simulating overland flow.
Jan 01, 2000; ... ABSTRACT: A Flow Simulation Applicator (FSA) was developed to create even-sheet overland flow of water into a vegetative filter strip. The FSA, constructed from easily-obtained materials, is adaptable to various applications, portable, easily calibrated and delivers reproducible flow ...
TEP: A Tillage Erosion Prediction model to calculate soil translocation rates from tillage.
Jan 01, 2000; ... ABSTRACT Soil movement by tillage is a function of slope gradient. Tillage direction performed upslope and downslope in opposing directions over alternate years results in a net downslope movement of soil. The objective of this study was to develop a simulation model to describe sail ...