When founding alfalfa, we follow some basic rules: the choice of unweeded plot and the choice of declared seed without weed seeds.
Alfalfa, as a perennial crop that we grow on the same plot for up to 5 years, is a reservoir of weeds where the number of weeds on alfalfa always increases from year to year. After proper establishment, the choice of herbicide for weed control in alfalfa and its timely application is also important. In order to produce quality alfalfa, hay or haylage without the presence of competing plants (in this case weeds), which can be harmful and reduce the nutritional value in livestock nutrition, it is important to crop alfalfa without weeds.
Weed control in alfalfa can be done by winter spraying, ie. at rest alfalfa. Spraying of alfalfa at rest is usually performed at the end of February. Before the movement of vegetation, while alfalfa is still in hibernation, we can apply a herbicide based on the active substance metribuzin – Eugen.
Protection of alfalfa with Eugen
eugenics is a preparation that we use in alfalfa that is in the second year or older alfalfa. With this preparation, we control broadleaf weeds that appear in late winter and early spring, and they are:
- I will or I will not (Capsella bursa pastoris), arsenic (Stelaria media),
- an ordinary old man (Senecio vulgaris),
- dead nettle (Lamium amplexicuale)
- often (Veronica persica),
- field violet (Viola arvensis),
- dandelion (Taraxacum officinale)
- heartburn (Sinapis arvensis).
These weed species can endanger the growth of alfalfa and are a serious competitor to alfalfa during the growing season until the first mowing (which is always the most productive), especially if the winter was mild and allowed the weeds to develop unhindered. The herbicide Eugen is applied in the amount of 1 – 1.5 l / ha in the dormant phase of alfalfa.
In order to extend the spectrum of action to other weed species in alfalfa such as tannin (Rumex spp), Eugen can be added to Piano, herbicide based on the active substance thifensulfuron-methyl at a dose of 15 g -20g / ha. In the case of combining these two preparations, the treatment is also performed before the movement of vegetation in already established alfalfa in the second year and older.
Source: Bolja Zemlja by www.boljazemlja.com.
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