Organic Alfalfa Seed
When searching for products on the products pages check the box next to the type of products you would like to view.
When returning to the product page uncheck the boxes to clear the page for your next search.
Ascend 552 Non-GMO Untreated Alfalfa
Ascend Non-GMO Untreated Alfalfa is raw seed with Nitragin® Gold Inoculant.
Ascend alfalfa is a licensed proprietary variety marketed as Ascend 552 by Kussmaul Seeds.
Key Features: A very high yielding fall dormancy... Read More
Summit Non-GMO Untreated Alfalfa
Summit Non-GMO Untreated Alfalfa is raw seed with Nitragin® Gold Inoculant.
Summit alfalfa is a licensed proprietary variety marketed as a brand by Kussmaul Seeds.
Key Features: A fall dormancy variety with superior... Read More
Haymaker II Supreme Non-GMO Untreated Alfalfa
Haymaker II Supreme Non GMO Untreated Alfalfa is raw seed with Nitragin® Gold Inoculant.
Supreme alfalfa is a licensed proprietary variety marketed as Haymaker II Supreme by Kussmaul Seeds.
Key Features: A high qual... Read More
Calculating Fertilizer for Application for Corn Seed
Example = 300 lbs. of 6/24/24 per Acre
300 x 6% = 18 lbs. N/Acre
300 x 24% = 72 lbs. P/Acre
300 x 24% = 72 lbs. K/Acre
So, with 300 lbs. of 6/24/24, you are putting down 18 units of Nitrogen, 72 units of Phosphorous and 72 units of Potassium.
Nitrogen Needs – Corn needs about 1.1 units (or lbs.) per expected Bu.
Manure Credits – Add 3 units for every ton of manure applied.
Calculating Grain Weight Shrinkage
Calculating Grain (corn) Weight Shrinkage Due to Mechanical Drying
One of the factors involved in mechanically drying grain is the “expense” of the weight lost during the drying process. Grain buyers use a number of procedures to determine how much “dry” corn they will pay for when “wet”corn is delivered for sale.
The majority of weight loss from mechanical drying comes from water that is removed from the grain .The number of ”dry” bushels remaining from a given number of “wet” bushels dried to a given final moisture content can be determined by the equation provided to the below:
“Wet” bu. = lbs. of “wet” corn divided by 56
SF = Shrink factor from the following table based on final desired grain moisture content
PR = Points of moisture removed (original moisture minus final moisture content)
|Example: 56,000 lbs. of grain at 26% moisture to be dried to 15% moisture.
|"Dry" bu =||1,000 “Wet” bu. – (1,000 x 0.01176 x 11)
|1,000 – 129.36
Water Shrink Factors for Drying Shelled Corn to Various Moisture Levels
|Final Moisture (%)||Water Shrink Factor (shrink/point)
*Source:Adapted from Purdue Extension publication NCH-61, Calculation Grain Weight Shrinkage in Corn Due to Mechanical Drying.
Calculating Growing Degree Days For Corn Seed (GDD)
– GDD is a method to define the accumulated temperature needed for hybrids to reach maturity.
– GDD’s are calculated by adding the high temperature for the day and the low temperature for the day, dividing by 2 and subtracting 50.
– 86 degrees is the maximum high and 50 degrees is the minimum low. In other words, if the maximum daily temperature is 90 degrees, 86 is used in the calculation. If the minimum daily low temperature is 47 degrees, 50 is used in the calculation.
– GDD’s for corn are typically calculated from the date of planting.
– Corn normally requires about 110 GDD’s for corn to emerge.
– To estimate heat units, multiply 23.5 x maturity.
Calculating Growing Degree Units for Corn Seed
Growing Degree Units (GDU) are calculated using the following formula. The daily high temperature is capped at 86 degrees Fahrenheit and the daily low is capped at 50 degrees. These limits have been established because growth is assumed to slow or stop when these temperature caps are exceeded. There are many sources that provide calculated GDUs for you to track. Talk to your local Kussmaul Sales Manager or Dealer to help you track your GDUs for the entire growing season.
GDUs = ((Daily high temperature + Daily low temperature)/2) – 50
* Source: Purdue University Corn & Soybean Field Guide 2008 Edition
Plants are most susceptible to infection when young. Infection results in the production of the gall. Galls form on any above-ground plant part. Initially, galls are covered with glistening, green-to silvery-white tissue. The interior of the gall becomes a mass of powdery, olive-brown to black spores. Galls on leaves remain small, becoming hard and dry. Galls on the lower stem may result in a barren plant.These plants will be reddish late in the season.The spores produced in galls survive the winter and germinate in the spring to produce another type of spore that is dispersed by wind or splashing rain and that can infect the plant. Smut infection is favored by dry weather.Anything that creates wounds on plant (hail, blowing soil or sand, cultivation, detasseling) can create infection courts where the fungus can gain entry to the plant. Most corn is more or less susceptible, but the percentage of plants affected in a field is usually not great.
Corn Plant Nutrients Needed for Average Soils
The PH for average soil is 6.2 – 6.5
|125 Bu. Per Acre|| ||
|Actual Nitrogen ("N")||Potassium||Potash
|187 Lbs||40-50 Lbs||30-40 Lbs
|150 Bu. Per Acre|| ||
|225 Lbs||45-55 Lbs||35-45 Lbs
|175 Bu. Per Acre|| ||
|263 Lbs||50-63 Lbs||40-50 Lbs
Credits should be taken for:
Manure: Tons Applied
Alfalfa: % of Stand
Soybeans: 60# Nitrogen
Different Regions Require Different Hybrids
Hybrids Grown North of their Maturity Zone
* Late, full season hybrids characteristics:
– Flower relatively early
– Moderate plant height
– Adequate teset weight due ot shorter kernel filling period
– Good yield because higher yields are expected from late full season hybrids
– Adequate ear drydown because time between physiological kernel maturity and harvest is reduced
– Substantially higher moisture
– Greater risk to reatching yield potential because of early frost and fewer GDU’s during the season
Hybrids Grown West of their Maturity Zone
– Require more heat and drought tolerance
– Can sacrifice ear and stalk rot tolerance due to drier conditions
– Have few test weight issues from lower kernel moisture at harvest due to drier and windier conditions
– Require better stalk strength, staygreen and root systems to tolerate windier conditions
– Require better ear retention and able to adapt to higher plant populations
Hybrids Grown East of their Maturity Zone
– Require more leaf, ear, root and stalk rot tolerance due to increased rainfall and higher humidity
– Require virus tolerance near Ohio River Valley and where Johnsongrass is present
Inadequate moisture during any growth period can reduce corn yield. Nutrient availability, uptake and transport are impaired without sufficient water. Plants weakened by dry conditions are also more susceptible to disease and insects. Severe moisture stress is indicated by leaf wilting that is alleviated only when the plants receive additional water.
Four consecutive days of visible wilting can reduce potential corn yield by 5-10 percent during the vegetative growth stage, or by 40-50 percent during silking and pollination. Moisture stress during this period also can result in a lack of synchronization between pollen shed and silking at pollination, because pollen grains may not remain viable and silking my be delayed.
* Source: Purdue University Corn & Soybean Field Guide 2008 Edition