26 research outputs found
Recommended from our members
Drip irrigation : an introduction
Discusses the advantages of drip irrigation and how it can help growers use water efficiently. Covers basic concepts related to components and design as well as management considerations such as placement of the tape, timing and rates, maintenance, and adjustments to fertilizer rates.Revised October 2006. Revised March 2013. Facts and recommendations in this publication may no longer be valid. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo
Recommended from our members
Strategies for efficient irrigation water use
Provides suggestions for ways to conserve irrigation water. Explains how to use the AgriMet crop water use charts. Provides general guidelines for irrigation methods, timing, and soil management.Published July 2001. Revised March 2013. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo
Urban and Rural-residential Land Uses: Their Role in Watershed Health and the Rehabilitation of Oregon’s Wild Salmonids
This technical report by the Independent Multidisciplinary Science Team (IMST) is a comprehensive review of how human activities in urban and rural-residential areas can alter aquatic ecosystems and resulting implications for salmonid recovery, with a geographic focus on the state of Oregon. The following topics are considered in the form of science questions, and comprise the major components of this report: The effects of urban and rural-residential development on Oregon’s watersheds and native wild salmonids. Actions that can be used to avoid or mitigate undesirable changes to aquatic ecosystems near developing urban and rural-residential areas. The benefits and pitfalls of salmonid habitat rehabilitation within established urban or rural-residential areas. Suggested research and monitoring focus areas that will facilitate the recovery of salmonid populations affected by development.
The fundamental concepts presented in this report should be applicable to most native salmonid populations across the state. IMST encourages managers and policy-makers with interest in a specific species or geographic region to carefully research local ecological conditions, as well as specific life history characteristics of salmonids in the region.
Conserving watershed condition and salmonids in the face of increasing development requires consideration of two distinct sets of processes. First are the human social and economic processes that drive patterns in land use change. Second are the ecological processes, altered by land use, that underlie salmonid habitat changes. This report focuses on the latter and summarizes the effects of rural-residential and urban development on native, wild salmonid populations and the watersheds upon which they depend
Recommended from our members
Drip irrigation guide for onion growers
This publication provides a framework, general recommendations, and rationales to aid onion growers interested in maximizing their land use and crop yield through drip irrigation.Published December 2005. Revised January 2013. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo
Recommended from our members
Drip irrigation guide for potatoes
This publication provides a framework, general recommendations, and rationales to aid potato growers interested in maximizing their land use and crop yield through drip irrigation. Discusses bed conformation, pumps and filters, system maintenance, microirrigation criteria, and chemigation.Published October 2006. Revised January 2013. Please look for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalogKeywords: drip irrigation system maintenance, potatoes, drip irrigation, potatoes, potato bed conformation for drip irrigatio
Recommended from our members
A Review of Urban Water Body Challenges and Approaches: (1) Rehabilitation and Remediation
We review how urbanization alters aquatic ecosystems, as well as actions that managers can take to remediate urban waters. Urbanization affects streams by fundamentally altering longitudinal and lateral processes that in turn alter hydrology, habitat, and water chemistry; these effects create physical and chemical stressors that in turn affect the biota. Urban streams often suffer from multiple stressor effects that have collectively been termed an “urban stream syndrome,” in which no single factor dominates degraded conditions. Resource managers have multiple ways of combating the urban stream syndrome. These approaches range from whole-watershed protection to reach-scale habitat rehabilitation, but the prescription must be matched to the scale of the factors that are causing the problem, and results will likely not be immediate because of lengthy recovery times. Although pristine or reference conditions are far from attainable, urban stream rehabilitation is a worthy goal because appropriate actions can provide ecosystem improvements as well as increased ecosystem service benefits for human society
Recommended from our members
Nutrient management for onions in the Pacific Northwest [2001]
This nutrient management guide is designed to assist onion growers and crop advisors in producing a high-quality crop while protecting the environment from excess nutrients. Nutrient management strategies recommended here are based on data accumulated over many growing seasons with many different onion varieties in Idaho, Washington, and Oregon. This publication provides current information on:
• How onions grow and how their growth pattern affects nutrient needs
• Timing and amount of crop nutrient uptake
• Keys to managing nitrogen efficiently
• Ways to monitor crop N status during the growing season
• How to assess the need for P, K, S, and micronutrient fertilization
• Fertilizer sources and application methods
• How to assess the need for lime on sandy soils in the Columbia BasinPublished February 2001. Please check for up-to-date information in the OSU Extension Catalog: http://extension.oregonstate.edu/catalo