One of the earliest varieties, the Arosa potato, was bred and registered in Germany in 2009. The particular value of the variety is its high yield and resistance to droughts; Arosa can be grown without the use of artificial irrigation.
- Agrotechnical techniques
- Gardeners reviews
Arosa bush is beautifully formed, with semi-erect stems. The potato tubers are round, slightly elongated, the eyes are shallow. The color of the flowers of the potatoes is red-purple, and the potatoes themselves have a bright red-pink color.
Its ripening period is only 70-75 days. The number of commercial tubers in a bush can reach 15-16 pieces, and the weight of each potato is from 70 to 150 grams. Naturally, the Arosa variety is considered one of the most high-yielding varieties, up to 50 tons of potatoes can be obtained per hectare, and up to 70 tons with good plant nutrition!
- The marketable yield of tubers is very high, it can reach from 94 to 96%.
- This variety can be successfully grown on any type of soil.
- Arosa is extremely responsive to increased doses of mineral fertilizers.
- Since the variety is drought-resistant, it is possible to cultivate it even in the most southern regions.
Potatoes have a fairly good keeping quality; their dormant period lasts until the end of April. Sprouted and planted potatoes give quick friendly shoots.
Experts warn that Arosa etching against silver scab and Rhizoctonia is a must! Plants have immune resistance to diseases such as:
- striped and wrinkled mosaic
- virus Y
Arosa tubers have a light yellow flesh, medium digestibility and are suitable both for ordinary table use and for cooking french fries, Arosa is classified as a universal variety. The high starch content (12 to 14%) gives the potatoes excellent taste.
The features of agricultural technology include the removal of the tops recommended by potato growers about two weeks before the start of harvesting. Yes, this is not a typo. Although we are accustomed to pulling the crop from the ground by the tops, it is its pruning before harvesting that will protect the tubers from late blight.
From garden tricks for early potato varieties, you can use special organic bedding. But for long-term cultivation in one area of Arosa, the method of overseeding of spring green manures after harvesting tubers is well recommended. Overseeding of rapeseed, mustard and oil radish heals the soil environment and increases the yield of Arosa.
Let's see why? First of all, they suppress the development of late blight due to the active processing of iron. It has been proven that late blight develops better on iron-enriched soil. A wonderful observation, isn't it?
Cabbage green manures are not afraid of poor and heavy soils, they successfully condense moisture from the air, therefore they remarkably "ennoble" the soil in terms of its moisture capacity. Their root system penetrates deep enough and raises nutrients to the surface that are inaccessible to potatoes. They reduce the acidity of the soil by enriching it with calcium. They grow a lot of green mass, which, when decomposed, gives additional carbon, which improves the nutrition of Arosa potatoes.
And the most useful quality is sanitary. Their phytoncides successfully suppress fungal parasites, but at the same time attract earthworms. The worms, passing the remnants of vegetation with the soil through themselves, destroy the pathogenic flora. Due to the roots of cabbage siderates and the labor of worms, the structure of the soil is improved, therefore the yield of Arosa is significantly increased.
They should be sown after harvesting Arosa, in August. It is better not to dig up the soil either before sowing or in late autumn. Otherwise, you will cut the soil workers - earthworms. If the autumn has dragged on, and the crops began to bloom and give ovaries, it is better to protect yourself from self-seeding and cut off the juicy fertilizer, leaving it right in the garden. If flowering has not come, let all the grown plants go under the snow right in this form.
- Produce high, steady yields in southern arid regions;
- During the years of prolonged rains and fogs, the relative resistance to late blight of the tops was noted;
- Those who grow Arosa for sale are satisfied with the presentation, shape and size of the tubers;
- The resistance to soil nematodes has been confirmed, but data on the resistance of Arosa to the stem nematode have not yet been obtained.
So, in the Arosa variety, our gardeners confirm many of the characteristics given by German producers. An unexpected bonus is its relative resistance to late blight in humid conditions. Perhaps this result can be improved by applying early trimming of the tops and protecting the potato plantings with green manure. After all, constant spraying with copper is too harmful for the environment and humans.