Windy Ridge Fertilizers

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Information about Windy Ridge Fertilizers
Education

Published on November 13, 2008

Author: mysciencespace

Source: slideshare.net

Fertilizers and Turfgrass Fertility LESCO is a registered trademark of LESCO, Inc.

Fertilizers and Turfgrass Fertility

Why Fertilize? Supply plant nutrients Improve plant health Enhance appearance Improve pest tolerance

Supply plant nutrients

Improve plant health

Enhance appearance

Improve pest tolerance

Basic Plant Needs Oxygen Water Light Nutrients Growing medium

Oxygen

Water

Light

Nutrients

Growing medium

Nutrients Macro (primary) Macro (secondary) Micro (minor)

Macro (primary)

Macro (secondary)

Micro (minor)

Macronutrients (primary) Nitrogen (growth, color) Phosphorus (root development) Potassium (stress tolerance)

Nitrogen (growth, color)

Phosphorus (root development)

Potassium (stress tolerance)

Macronutrients (secondary) Calcium (cell wall structure) Magnesium (photosynthesis) Sulfur (growth, color)

Calcium (cell wall structure)

Magnesium (photosynthesis)

Sulfur (growth, color)

Micronutrients Iron (chlorophyll) Zinc (chlorophyll) Manganese (chlorophyll)

Iron (chlorophyll)

Zinc (chlorophyll)

Manganese (chlorophyll)

Micronutrients Copper (enzyme activator) Boron (water balance) Molybdenum (nitrogen utilization) Chlorine (photosynthesis)

Copper (enzyme activator)

Boron (water balance)

Molybdenum (nitrogen utilization)

Chlorine (photosynthesis)

Primary Nutrients Nitrogen (N) Key element in turfgrass nutrition Promotes leaf and stem growth Essential component of chlorophyll molecule Involved in regulating the uptake of other key nutrients

Nitrogen (N)

Key element in turfgrass nutrition

Promotes leaf and stem growth

Essential component of chlorophyll molecule

Involved in regulating the uptake of other key nutrients

Phosphorus (P) Used in the formation and transfer of energy within the plant Influences early root development and growth Encourages plant establishment Primary Nutrients

Phosphorus (P)

Used in the formation and transfer of energy within the plant

Influences early root development and growth

Encourages plant establishment

Potassium (K) Used by plant in large quantities, second only to nitrogen Key component in the formation of carbohydrates Encourages rooting and wear tolerance Enhances drought and cold tolerance Key component in cell wall development Primary Nutrients

Potassium (K)

Used by plant in large quantities, second only to nitrogen

Key component in the formation of carbohydrates

Encourages rooting and wear tolerance

Enhances drought and cold tolerance

Key component in cell wall development

Secondary Nutrients Calcium (Ca) Strongly influences proper soil pH Essential to strong cell wall structure and cell division Can improve soil structure, water retention and infiltration

Calcium (Ca)

Strongly influences proper soil pH

Essential to strong cell wall structure and cell division

Can improve soil structure, water retention and infiltration

Magnesium (Mg) Plays an important role in photosynthesis and chlorophyll production A necessary component in many essential enzyme systems within the plant Important in aiding the translocation of phosphorus Secondary Nutrients

Magnesium (Mg)

Plays an important role in photosynthesis and chlorophyll production

A necessary component in many essential enzyme systems within the plant

Important in aiding the translocation of phosphorus

Sulfur (S) Works with nitrogen to produce new protein for plant growth Plays an important role in the utilization of oxygen by the plant Influences the level of activity of soil microorganisms Secondary Nutrients

Sulfur (S)

Works with nitrogen to produce new protein for plant growth

Plays an important role in the utilization of oxygen by the plant

Influences the level of activity of soil microorganisms

Micronutrients Iron (Fe) Necessary for the formation of chlorophyll Deficiencies are most common in wet, cold or high pH soils Aids in the activation of a number of biochemical processes within the plant

Iron (Fe)

Necessary for the formation of chlorophyll

Deficiencies are most common in wet, cold or high pH soils

Aids in the activation of a number of biochemical processes within the plant

Manganese (Mn) Important in the formation of chlorophyll and the activation of initial growth process Generally available in sufficient quantities in the soil Micronutrients

Manganese (Mn)

Important in the formation of chlorophyll and the activation of initial growth process

Generally available in sufficient quantities in the soil

Boron (B) Necessary for plant reproduction Helps maintain optimum water balance in plants Micronutrients

Boron (B)

Necessary for plant reproduction

Helps maintain optimum water balance in plants

Molybdenum (Mo) Essential to the process of nitrogen utilization Is less available under acidic (low pH) soil conditions Micronutrients

Molybdenum (Mo)

Essential to the process of nitrogen utilization

Is less available under acidic (low pH) soil conditions

Zinc (Zn) Necessary for the production of chlorophyll Micronutrients

Zinc (Zn)

Necessary for the production of chlorophyll

Copper (Cu) Important in the synthesis of certain plant growth substances Serves as an activator for several essential enzymes Needed only in small quantities; large amounts can be toxic to turfgrass plants Deficiencies are usually only found in highly alkaline soils (high pH) organic soils or heavily leeched soils Micronutrients

Copper (Cu)

Important in the synthesis of certain plant growth substances

Serves as an activator for several essential enzymes

Needed only in small quantities; large amounts can be toxic to turfgrass plants

Deficiencies are usually only found in highly alkaline soils (high pH) organic soils or heavily leeched soils

Fertilizer Basics

What is Fertilizer? Supplies basic plant nutrients Nitrogen Phosphorus Potassium

Supplies basic plant nutrients

Nitrogen

Phosphorus

Potassium

The Fertilizer Label N - Nitrogen P - Phosphorus K - Potassium

N - Nitrogen

P - Phosphorus

K - Potassium

Fertilizer Labels Must be on every bag Must contain: Net weight Guaranteed analysis Manufacturer name & address

Must be on every bag

Must contain:

Net weight

Guaranteed analysis

Manufacturer name & address

Fertilizer Labels May contain: Percent CSRN or WIN Percent additional nutrients other than NPK Source of nutrients

May contain:

Percent CSRN or WIN

Percent additional nutrients other than NPK

Source of nutrients

Fertilizer Label

Fertilizer Analysis (N-P-K) Percentage by weight of nutrients Elemental nitrogen (N) Available phosphorus (P 2 O 5 ) Soluble potash (K 2 O)

Percentage by weight of nutrients

Elemental nitrogen (N)

Available phosphorus (P 2 O 5 )

Soluble potash (K 2 O)

Fertilizer Ratio Analysis reduced to lowest whole number 16 - 4 - 8 (analysis) 4 : 1 : 2 (ratio)

High N to K Ratios (2:1 or higher) General maintenance Green up Accelerated top growth

General maintenance

Green up

Accelerated top growth

High K to N Ratios (1:2 or higher) Low potassium levels Improve stress tolerance Disease resistance

Low potassium levels

Improve stress tolerance

Disease resistance

Balanced N to K Ratio (1:1) General maintenance Stress conditions Reduced top growth

General maintenance

Stress conditions

Reduced top growth

High Phosphorus Fertilizers Starter fertilizers Low P levels

Starter fertilizers

Low P levels

THE CHALLENGE Feast or Famine

The Feast (Excess Soluble N) Accelerated top growth Weak root growth Excess clippings Pest susceptibility

Accelerated top growth

Weak root growth

Excess clippings

Pest susceptibility

The Famine (Fertilizer Deficiency) Poor color Weak, thin turf Pest susceptibility

Poor color

Weak, thin turf

Pest susceptibility

The Solution Proper fertilizer ratio(s) Proper timing

Proper fertilizer ratio(s)

Proper timing

Challenge and Solution

Fertilizer Considerations

Fertilizer Filler “ Make-weight” material added to fertilizer to make up the difference between weight of plant nutrient ingredient and balance of weight in a ton.

Fertilizer Filler “ Make Weight”

Low vs. High Analysis Analysis 12 - 4 - 8 18 - 6 - 12 24 - 8 - 16 “ Filler” per ton 1040 lb 573 lb 106 lb

Analysis

12 - 4 - 8

18 - 6 - 12

24 - 8 - 16

“ Filler” per ton

1040 lb

573 lb

106 lb

Fertilizer Math Made Simple

Determining Coverage / Bag (50# Bag) (24-5-11) 24 2 = 12(000) ft. 2 50 # bag only 1 # nutrient / 1,000 ft. 2 only Nutrients 2 = coverage / 1,000 ft. 2

(24-5-11)

24 2 = 12(000) ft. 2

50 # bag only

1 # nutrient / 1,000 ft. 2 only

Determining Product / 1,000 ft. 2 # / bag coverage = # / 1,000 ft 2 50# 12(000) = 4.2# / 1,000 ft 2

Calculating Bags Per Acre 4 # / 1,000 ft. 2 x 43.56 = 174 # / acre 174 # / acre 50 # / bag = 3.48 bags / acre # / acre # / bag = bags / acre

4 # / 1,000 ft. 2 x 43.56 = 174 # / acre

174 # / acre 50 # / bag = 3.48 bags / acre

Nitrogen Sources

Natural Organic Fertilizers Nitrogen combined with carbon, hydrogen and oxygen, and in some cases other elements, to form very complex compounds. (i.e. sewage sludge, poultry manure, blood meal etc.)

Nitrogen combined with carbon, hydrogen and oxygen, and in some cases other elements, to form very complex compounds.

(i.e. sewage sludge, poultry manure, blood meal etc.)

Synthetic Organic Fertilizers Synthetically combined materials containing carbon and two or more of the following elements; oxygen, hydrogen or nitrogen. (i.e. urea, IBDU & methylene urea's)

Synthetically combined materials containing carbon and two or more of the following elements; oxygen, hydrogen or nitrogen.

(i.e. urea, IBDU & methylene urea's)

Inorganic Carbon is not a component of it’s basic chemical structure. (i.e. ammonium sulfate, diammonium phosphate & monoammonium phosphate)

Carbon is not a component of it’s basic chemical structure.

(i.e. ammonium sulfate, diammonium phosphate & monoammonium phosphate)

Temperature Osmosis Microbial action Hydrolysis Physical breakdown Nutrient Release Mechanisms

Temperature

Osmosis

Microbial action

Hydrolysis

Physical breakdown

Temperature is a factor in the activity of soil microorganism which break down certain nutrient sources into their plant available form. Cold soil temperatures decrease the activity level of these microorganisms. Temperature

Temperature is a factor in the activity of soil microorganism which break down certain nutrient sources into their plant available form. Cold soil temperatures decrease the activity level of these microorganisms.

The tendency of fertilizer to pass through it’s outer coating, into the soil. This equalizes the fertilizer concentration between the fertilizer granule and the soil. Osmosis

The tendency of fertilizer to pass through it’s outer coating, into the soil. This equalizes the fertilizer concentration between the fertilizer granule and the soil.

Naturally occurring microorganisms break down a variety of fertilizer coatings and nutrient sources into more basic compounds, which then allows the plants to use them. Microbial Action

Naturally occurring microorganisms break down a variety of fertilizer coatings and nutrient sources into more basic compounds, which then allows the plants to use them.

A chemical reaction in which water breaks down a compound such as a fertilizer coating. Hydrolysis

A chemical reaction in which water breaks down a compound such as a fertilizer coating.

An example of conditions affecting the physical breakdown and release of nutrition is: The solvent effect of water on fertilizer coatings and nutrients. Physical Breakdown

An example of conditions affecting the physical breakdown and release of nutrition is:

The solvent effect of water on fertilizer coatings and nutrients.

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