Unit Factors Affecting Nitrates in Groundwater.. 1. Examine the processes of the nitrogen cycle. 2. Identify the source for most chemical nitrogen fertilizers.

Slides:

Advertisements

Similar presentations

Ecosystems: What Are They and How Do They Work?

Advertisements

Nitrogen Fixation: Nitrogen fixation is one process by which molecular nitrogen is reduced to form ammonia. Ammonification: The chemical transformation.

Biogeochemical Cycles Section 22-2 Pages

3-3 Cycles of Matter Page 74.

The Nitrogen Cycle By: Evelynn Liang Janelle Guild AP Environmental Science Project.

The Nitrogen Cycle. 1. What is nitrogen? 1. Nitrogen is a non-metal, gaseous element.

The Biogeochemical Cycles. © 2003 John Wiley and Sons Publishers Idealized diagram of the geologic cycle, which includes the tectonic, hydrologic, rock.

The Nitrogen Cycle Chapter 2. Nitrogen The circular flow of nitrogen to free gas in the atmosphere (it is 78% of our atmosphere), to nitrogen compounds.

Cycling of Matter Biology: The Sustainability of Ecosystems (Grade 10)

The nitrogen cycle. Why is the cycle important and what is nitrogen used for? Not many organisms can use nitrogen directly from the air (78%) Recycling.

Nitrogen Information N By: Becky McGuire. Key Facts a. N is in every plant cell b. N is 78% of atmosphere c. Production of N comes from ammonia (NH3)

The Nitrogen Cycle Living things need nitrogen. It is an important element in proteins, DNA, and other chemical compounds. Nitrogen is found.

Toby Sandblom, Andrew Ward, and Rachel Clarkson Nitrogen Cycle.

The nitrogen cycle is the biogeochemical cycle that describes the transformations of nitrogen and nitrogen- containing compounds in nature biogeochemical.

UNIVERSITY OF BATH FOUNDATION YEAR BIOLOGY MODULE SEMESTER 2 ASSIGNMENT 1 PRESENTATION.

NITROGEN CYCLE Explains how NITROGEN moves through an ecosystem.

By: Alexander Kalogerou Chiyeung Lau Miriam Khan Charles Song

Where Nitrogen is Stored Large Stores In the atmosphere where it exists as a gas (78%) Oceans and within organic matter in soil Small Stores Within terrestrial.

Ecosystems Section 3 Ecology 4.3 Notes. Ecosystems Section 3 Objectives Describe each of the biogeochemical cycles.

Biogeochemical Cycles Biology 20. Chemicals Cycle Inorganic nutrients are cycles through natural ecosystems repeatedly. Biogeochemical cycles are the.

Part I: Nitrogen and Phosphorus

The Nitrogen Cycle C. Doka A. Greenberg K. Guymon Z. Reidy.

Stefanny Wilches & jenny Arias The Nitrogen Cycle.

BELLRINGER  1. Write out the word for each chemical formula  NO3  NH3  NO2  N2  2.Why is the nitrogen cycle important to aquaponics?

Nitrogen Cycle Importance of Nitrogen Take a deep breath. Most of what you just inhaled is nitrogen. In fact, 80% of the air in our atmosphere is made.

NITROGEN CYCLE. What does this have to do with me?

Soil Nitrogen Unit: Soil Science.

Circulation of Nutrients

CARBON Facts  Proteins, fats and carbohydrates are made of CARBON  You are made out of CARBON  Fossil Fuels (oil, natural gas, coal) are stored CARBON.

The Biogeochemical Cycles

Cycles Carbon and Nitrogen Cycles Nitrogen cycle THE NITROGEN CYCLE Nitrogen (N) is an element like carbon. All creatures need nitrogen to survive. There.

Ecosystems Ecology Part 2

THE NITROGEN CYCLE.

Nitrogen and Carbon Cycle Unit 4 – Nutrient Cycles in marine ecosystems.

Cody Guenzler, Period 3 Nitrogen Fixation Conversion of Nitrogen Assimilation Ammonification Nitrification Denitrification.

Essential elements describe the ________ of essential elements from the ______________ through living organisms and _______ into the environment. Biogeochemical.

The Nitrogen Cycle By: Caitlin, Jade, Connor, and Brandon M.

Nitrogen Cycle Chapter 3 Section 3.4 continued. Nitrogen Cycle 1. Living things require nitrogen to make amino acids, which are used to build proteins.

The Nitrogen Cycle. Why is nitrogen important? Its an essential part of many biological molecules. Proteins Nucleic acids (DNA) Chlorophyll Adenosine.

1. What is Nitrogen?  N makes up about 78% of our atmosphere.  N in the atmosphere it is mostly in the form of ______, which is a compound that plants.

Nitrogen Cycle Describe the role of decomposers in the decomposition of organic material. Describe how microorganisms recycle nitrogen within ecosystems.

KEY CONCEPT Matter cycles in and out of an ecosystem.

Cycles of the Earth & Biogeochemical Cycles Nitrogen Cycle

Nitrogen Cycle Teacher Copy.

Chapter 3 Section 3.4 continued

NITROGEN CYCLE.

Nitrogen Fixation.

KEY CONCEPT Matter cycles in and out of an ecosystem.

Why is NITROGEN Important?? Proteins and Amino Acids

How Matter and Nutrients Cycle

Biogeochemical cycles

Nitrogen Cycle Notes.

EQ: How are nutrients recycled throughout the environment?

Cycles All organisms need water, minerals, and other life-sustaining materials to survive. Ex. Hydrologic – necessary for all life Ex. Carbon – backbone.

The Nitrogen and Phosphorus Cycles

Carbon, water and nitrogen cycles

iDiagram Activity Diagram created by SLSS Teacher Design Team

Nitrogen cycle.

Why is NITROGEN Important?? Proteins and Amino Acids

The Nitrogen Cycle.

ABIOTIC CYCLES WE WILL: YOU WILL:.

ABIOTIC FACTORS Of Ecosystems.

Nitrogen Cycle Notes 11/8/18 Entry 23

Why is NITROGEN Important?? Proteins and Amino Acids

Cycling of Materials in Ecosystems

Presentation transcript:

Unit Factors Affecting Nitrates in Groundwater.

1. Examine the processes of the nitrogen cycle. 2. Identify the source for most chemical nitrogen fertilizers. Objectives

3. Relate the agricultural use of nitrogen fertilizer to the potential for groundwater contamination. 4. Identify best management practices for increasing nitrogen efficiency and maximizing economic yields while reducing environmental risks. Objectives

- Ammonium fixation - Ammonium nitrogen - Available nutrient - Denitrification - Leaching - Nitrification - Nitrite - Nitrogen cycle - Nitrogen fixation - Nutrients - Root zone Terms

How the nitrogen cycle works?

-is a continual exchange of nitrogen between biological and environmental elements. - It is a continual process that replaces necessary nutrients and occurs through many stages. -Ammonium fixation is the step where nitrogen is tied to the clay structures in soil. Nitrogen Cycle

-is the changing of ammonium to nitrite, first product formed from ammonium, to nitrate. -The nitrate then undergoes Denitrification to reduce the nitrate to atmospheric nitrogen. - Nitrification

- The nitrogen cycle will vary depending on environmental conditions. Water carries soil nutrients down through the process of leaching. -will later take the atmospheric nitrogen to form a product available to plants. Nitrogen fixation

Nitrogen Cycle

Where do chemical fertilizers come from?

- are found in many forms and types. - Fertilizers are found in solid and aqueous forms. - Aqueous—liquid solutions, ex. Aqua ammonia, 28% liquid nitrogen Chemical fertilizers

-granulated, powder forms, ex. Urea, ammonium nitrate a. The forms of fertilizers are manufactured for different uses. Ammonium nitrogen is a fertilizer commonly used in fertilizers. b. Chemical fertilizer formulas have a standard method of finding the amount of each component. Solid

-The numbers follow the pattern N–P–K. - 20–2–23 fertilizer will contain 20% N, 2% P, and 23% K. - The plants need the fertilizer at the root zone, the depth of soil penetrated by roots. The plants will use available nutrients, the portion of any element that can be readily absorbed and assimilated by growing plants. Fertilizer Pattern

Nitrogen Compounds

NITROGEN REACTIONS IN THE SOIL

How does the use of agricultural fertilizers create potential for groundwater contamination?

A. Nitrates that are above a natural level can lead to excessive nitrate levels in the water and other ecosystems. - Nitrate is used by plants and biological systems. That which is not used by the plants is returned via the nitrogen cycle. Nitrates

B. The return of nitrates includes leaching through the soil into the groundwater. C. Nutrients are elements needed by plants. Nitrates

How can the farmer increase yield while reducing environmental risk using chemical nitrogen fertilizers?

- Fertilizers have various yield benefits while holding onto certain environmental risks. - Applying fertilizer closer to the growing season will normally improve yield and the nitrate has less time to leach prior to it being needed. - Over application will show decreased yield and increased environmental risk. Fertilizers