AlzChem Global
Agriculture

Calcium Cyanamide Horse owners

Can I spread calcium cyanamide onto moist stock?

Normally calcium cyanamide is always applied onto dry stock.
However, if clover appears in large amounts you can spread it onto the dew-covered stock, which will result in severe burns to the plants. Since the clover collects more fertilizer granules because of its horizontal blade position and larger leaf area it will be burnt much stronger than the grass.  However, although the clover usually recovers again the grass has meanwhile gained a growth advantage and can assert itself more strongly, and so to a certain extent pushes the clover back into the turf.

 

Does it make sense to fertilize a pasture containing clover with calcium cyanamide?

If the clover has spread out densely across a pasture this indicates a nitrogen deficiency.  This is because when there is a good supply of nutrients the grasses are so vigorous that they suppress the clover.  If on the other hand there is a nitrogen deficiency then clover can spread.
If clover appears in large amounts you can spread calcium cyanamide onto the dew-covered stock, which will result in severe burns to the plants. Since the clover collects more fertilizer granules because of its horizontal blade position and larger leaf area it will be burnt much stronger than the grass.  However, although the clover usually recovers again the grass has meanwhile gained a growth advantage and can assert itself more strongly, and so to a certain extent pushes the clover back into the turf.

 

If calcium cyanamide is used on the horse pasture can it harm my horses?

Although each spring many thousands of hectares of horse pastures are fertilized with calcium cyanamide, and although some farmers repeatedly fail to observe the required waiting period, there have been no cases of horses being poisoned nor corresponding symptoms. This is probably due to the fact that the calcium cyanamide has a deterrent effect and the horses (and other animals too) avoid consuming contaminated feed. Nevertheless one cannot rule out completely the possibility that horses will consume contaminated feed, especially if they have no choice. This is why it is essential to observe the 14-day waiting period. This will ensure that the cyanamide in calcium cyanamide will have completely converted into urea and other non-toxic compounds. Another reason this waiting period should always be observed is that it is simply not good agricultural practice to send horses into a paddock where the fertilizer that has just ben spread is still sticking to the grass.

 

How can I restore a poorly maintained horse pasture?

There are a number of steps to take to encourage the grass to grow stronger, and to suppress weeds:  to simply use chemical weed control alone is just combating symptoms, but it does not change the causes of weed infestation.  If nothing else changes then the initial weed growth will quickly return.  So what can be done?

  • Regularly gather up horse droppings to prevent the creation of rank patches (where weeds start). This will reduce the parasite load of the pasture at the same time.
  • Regularly mow the pasture residues: ensure that the plants rejected by the horses do not have the opportunity to produce seeds or to gain the upper hand as a result of unhindered growth!
  • When there is an oversupply of feed (spring) use a portion of the area for hay production (mow for cuttings )! Do not let the grass become excessive because that will result in the grains dispersal and spread.
  • Fertilization of pastures with calcium cyanamide in the spring: calcium cyanamide has a positive influence on the composition of the plant community: weeds are suppressed by the herbicidal side effect of the fertilizer, grasses increase. It makes sense to fertilize the pasture each year with calcium cyanamide particularly when buttercup is covering large areas of the pasture.

Horse owners have reported a number of times that using this approach they had succeeded in largely repelling buttercup from the area inside 2 to 3 years.  The ideal time to apply calcium cyanamide is when vegetation begins in the spring, and the application rate should be 300 to 400 kg PERLKA calcium cyanamide per hectare. The long-lasting and even nitrogen effect of calcium cyanamide also encourages in particular the valuable undergrasses with their runners. Practical experience shows that using calcium cyanamide regularly also halts the advance of the dangerous ragwort. Dandelions also decline when the fertilizer granules roll into the middle of the leaf rosette and burn the growth points.

 

When and how much calcium cyanamide should be applied to a horse pasture?

The ideal time to apply calcium cyanamide is when vegetation begins in the spring, and the application rate should be 300 to 400 kg PERLKA calcium cyanamide per hectare.

 

What waiting period should be observed after using calcium cyanamide on horse pastures?

A 14-day waiting period is recommended after fertilizing with calcium cyanamide. Waiting for this period will ensure that the cyanamide in calcium cyanamide will have completely converted into urea and other non-toxic compounds. To be absolutely certain you can carry out a crest test.

 

Is calcium cyanamide effective against moss on horse pastures?

Because moss does not form roots and adheres directly to the surface of the soil it is particularly sensitive to the effects of the calcium cyanamide fertilizer. To obtain the best effect in combating moss when fertilizing with calcium cyanamide you should apply 300to 400 kgs per hectare.  The best time to apply it is in early spring when vegetation is beginning. The grass should be more or less dry when the fertilizer is spread so that not too much calcium cyanamide remains hanging on the leaves. However, there is no problem at all doing this is the soil itself is still moist. Depending on the weather the effect will not be noticeable until one or two weeks, when the moss becomes brown and dies off. If the moss cover was very dense, meaning that the turf is very thin, it is recommended that approximately 14 days after applying the calcium cyanamide fertilizer you reseed with a horse pasture seed mixture that is rich in rye grass.