Resources by Mark M. Alley
Title | Available As | Summary | Date | ID | Author |
---|---|---|---|---|---|
Virginia No-Till Fact Sheet Series Number Five: Understanding Ammonia Volatilization from Fertilizers | Loss of nitrogen (N) as ammonia gas (NH3) is known as volatilization. While
volatilization directly from soil can occur, such loss is generally relatively small
compared to the amount that can be lost from fertilizers. Volatilization losses can be
significant with granular urea and urea-ammonium nitrate (UAN) sources, but the amount
of loss varies greatly depending on placement of the fertilizer, soil pH, soil texture,
and climatic conditions after application. |
Sep 29, 2020 | 2908-1404 (SPES-264NP) | ||
Virginia No-Till Fact Sheet Series Number Six - Nitrogen Fertilizer Sources and Properties | The most commonly available nitrogen fertilizer sources used in Virginia are urea, liquid urea-ammonium nitrate (UAN) solution, and ammonium sulfate. Ammonium nitrate is also available in some areas but its use is low relative to urea and UAN solution. Understanding the properties of these fertilizers enables managers to make better decisions as to the most effective way to use these fertilizers as well as to make economic comparisons. |
May 3, 2024 | 2908-1405 (SPES-592NP) | ||
Pop-up and/or Starter Fertilizers for Corn | Nov 16, 2018 | 3002-1438 (SPES-77NP) | |||
Virginia No-Till Fact Sheet Series Number Two: Nitrogen Fertilizer Injection in No-Till Systems | Liquid nitrogen fertilizers have typically been surface applied. This method of
application places the fertilizer where the urea nitrogen component of the solution is
susceptible to volatilization losses. |
Sep 22, 2020 | 3011-1516 (SPES-265NP) | ||
Growing Hulless Barley in the Mid-Atlantic | This quick guide is a tool to help Unit Coordinators navigate the process of onboarding a new agent in their local office. This resource clarifies the key responsibilities & roles a Unit Coordinator plays in the onboarding process, as well as tips for a successful experience when welcoming a new agent to the local unit office. |
Jun 24, 2024 | 424-022 | ||
Growing Bread Wheat in the Mid-Atlantic Region | The more than 55 million people who live in the mid-Atlantic region of the United States want to purchase processed grain foods such as bread and other dough products made from hard, or bread, wheat. To meet this demand, regional mills import bread wheat, which comes almost exclusively from the Plains states. These imports make up approximately 30 percent of the total grain needed for the region. |
Jun 24, 2024 | 424-024 | ||
Nitrogen Management for Winter Wheat: Principles and Recommendations | Efficient nitrogen (N) fertilization is crucial for economic wheat production and protection of ground and surface waters. Excessive plant-available N produces wheat plants that are susceptible to lodging and disease with resulting decreased yields and increased input costs. The potential for enrichment of ground and surface waters with nitrates also increases with excessive N fertilizer applications. |
Jun 25, 2024 | 424-026 | ||
Nitrogen and Phosphorous Fertilization of Corn | Mar 20, 2019 | 424-027 | |||
Successful No-Tillage Corn Production | Mar 20, 2019 | 424-030 | |||
Successful No-Tillage Corn Production | Mar 20, 2019 | 424-030 | |||
Corn Planting Dates in the Piedmont and Valley Regions of Virginia: How Early is Early? | Early-planted corn generally produces higher yields than later-planted corn due to improved utilization of sunlight during the long days of June and July, assuming moisture is adequate. Also, silage harvest can begin earlier and drying costs are reduced for grain corn; and earlier harvest enables growers to begin preparation for the fall seeding of small grain crops. |
Mar 29, 2019 | 424-032 | ||
Corn Planting Dates in the Virginia Coastal Plain: How early is early? | Feb 13, 2019 | 424-033 | |||
Fertilizer Types and Calculating Application Rates | Aug 30, 2019 | 424-035 | |||
Deep Tillage Prior to No-Till Corn: Research and Recommendations | Mar 29, 2019 | 424-053 | |||
Nitrogen Fertilization of Winter Barley: Principles and Recommendations | Jan 24, 2019 | 424-801 | |||
Sources of Lime for Acid Soils in Virginia | Acid soil limits crop yields on many Virginia farms. This soil acidity can be directly toxic to plants, but more often it reduces the plants' efficiency at nutrient utilization. |
Aug 9, 2019 | 452-510 (SPES-158P) |