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Factors to consider when buying high-quality forage seed PDF Print E-mail
Dairy basics - Feed and Nutrition
Written by Doo-Hong Min   
Monday, 30 April 2012 16:20

0312fg_min_1There are many different qualities of forage seed available on the market, so it is important to buy good-quality forage seed to make forage-based farming successful from the beginning.

Using cheap seed is not a bargain and will end up costing more due to reseeding resulting from low germination rate and high foreign materials in the seed.

Sometimes cheap seed also brings in some undesirable weed seeds to the new seedbed. Therefore, it is important to buy high-quality forage seed from the beginning to save time, money and energy.

Here are guidelines and some things to consider when purchasing good-quality forage seed:

• Germination
Having a high germination rate is one of the most important things for successful stand establishment. If you buy very low germination rate forage seed, you must buy more seed.

Otherwise, forage seeding might be a failure. You can find out the germination rate for each variety from the seed tag.

• Pure seed
Having a high percentage of pure seed for certain forage variety and species on the label is as important as germination rate. If pure seed rate is low, then you will end up having some other material such as other undesirable crop seeds, weed seeds, inert matter and hard seeds. Pure live seed (PLS) is calculated based on germination and pure seed (or purity).

• Weed seed
The percent of seed which are weed species can be seen on the label. If you have a high percentage of weed seeds, including noxious weeds, it will be very hard to control from the beginning stage.

In general, certified or high-quality forage seeds have much lower weed seed rate than lower-quality forage seeds.

• Inert matter
Sometimes low-quality forage seeds have high percentage of sticks, stems, broken seeds and sand. A high rate of inert matter is not desirable for good stand establishment.

• Hard seed
On the label, you will see the rate of hard seed for the variety you are going to purchase. This tells you the percentage of seed which is viable but which will not germinate immediately due to a hard or waxy seed coat.

Time or scarification (breakdown of hard seed coats) is required to allow moisture penetration.

• Inoculation on legume seeds
Rhizobium bacteria are essential to do a symbiotic nitrogen fixation in legumes. These days most legume seeds are pre-inoculated with rhizobium bacteria.

If legume seeds such as alfalfa, red clover, white clover, birdsfoot trefoil or kura clover are not pre-inoculated, you need to buy the inoculants separately to make good stand establishment.

Rhizobium bacteria should be specific for certain legumes and this is very important since the wrong type of bacteria (inoculant) will be useless.

For example, inoculant for alfalfa cannot be used for birdsfoot trefoil, although inoculant of alfalfa can be used for inoculating white, ladino or red clovers. The inoculants should be stored in the refrigerator or cool, shaded area until you use them.

• Certified seed
Most certified forage seeds (labeled with a blue tag) have greater than 95 percent germination rate, and buying certified forage seed will be helpful for successful establishment.  PD

This article was published on MSU Extension News for Agriculture. Click here for more information from MSU Extension.

Using cheap seed is not a bargain and will end up costing more in the long run. Photo by FG staff.

This e-mail address is being protected from spambots. You need JavaScript enabled to view it
Extension Forage Specialist
Michigan State University


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