General information

Potato "Lorch": variety description, photos and reviews


Due to the huge popularity of this tasty and healthy root crop, the potato varieties brought out by breeders is becoming more and more. They try to improve its natural qualities, and very often they succeed. On the other hand, the abundance of potato species can only confuse the as yet undecided host.

Therefore, if you are looking for a variety that has been tested by time and by many generations of gardeners, then you should definitely pay attention to Lorch. And in this article we will give you a description of this variety, introduce you to the peculiarities of its agricultural technology, tell you about the propensity for diseases and the predisposition to attack by pests.

  • Lorch potato: variety description
  • A photo
  • Features
  • Diseases and pests

Lorch is the oldest domestic potato variety, it was bred in 1922 at a potato breeding station, which is now known as the All-Russian Research Institute of Potato Farming. This variety was created by the breeder A. G. Lorch, in whose honor he received his name. Included in the State Register since 1931. Potato varieties Research Institute. Lorch: Excitement, Aspia, Barin, Bronnitsky, Vasilek and other varieties.

It belongs to medium-late potato varieties, its growing season is 80 - 100 days. It has table purpose, and also suits for processing on starch. The content of the latter he can reach 20% and above.

In the table below you can see how many percent of starch is found in other varieties of potatoes and compare them with this:

Tubers at Lorch are large, heavy and oblong, the average weight of one marketable fruit is 115 g. The skin is thin and smooth, light beige. The flesh is white and very tasty, crumbly in the cooking process. It has no properties to darken during heat treatment.

Productivity is good, on average gardeners harvest 25 - 35 t / ha. The bumpiness is also high and keeps at around 88 - 92%.

The yield of other varieties for comparison is presented in the table below:

We bring to your attention useful information about the properties of potatoes: why solanine is dangerous and potato juice is useful, is it possible to eat it raw and what is the use of sprouts.

The keeping quality of the tubers of this variety is decent, which helps with long-term storage in the cellars. The eyes are small and rare.

See below: “Lorch” photos

Bushes in this variety are high and branched. The foliage is also thick, and the leaves themselves are large and light green, with a weak dissection. The corollas of flowers in the bushes are large and have a nice pink-purple hue.


Due to his age, Lorch got accustomed perfectly not only in most regions of the Russian Federation, but also in all neighboring countries. And his taste qualities and excellent fruit appearance have provided him with more than a decade of successful sales in many European markets. In addition, do not forget that it is used for industrial purposes to produce starch.

IMPORTANT! As to the choice of the area for planting, it is necessary to emphasize the following: the young crops of this potato culture do not like too much heat and lack of moisture in the soil. Therefore, gardeners from the southern regions should prepare good irrigation conditions, preferably automated. In terms of soil selection, this variety is not too whimsical, but with a lack of potassium and phosphorus in the soil, the resulting fruits may have a less attractive appearance. Some gardeners also prefer to cut their planting material to increase its quantity. And if individual varieties can survive this procedure with minimal losses, then in the case of Lorch, the quality and volume of the crop will drop significantly.

Planting your germinated tubers stands in pits about 8 cm deep. Unlike many other types of potatoes, the Lorch tubers should be laid sprouts down. This stimulates the formation of more spreading bushes, which, accordingly, will have better lighting. Subsequently, your plants need to provide mandatory feeding, nitrogen fertilizers that can be applied at the vegetation stage are best suited here.

In general, agrotechnical methods for growing this variety are used standard - hilling, weed control, mulching, if necessary and desired, watering.

Diseases and pests

Apparently thanks to his growth, Lorch acquired an impressive immune system, which provides him with resistance to almost all diseases and pests.

So, it has excellent protection from: viral diseases, blight, rust, bacteriosis, Alternaria, verticilliasis, Fusarium. Only 2 diseases can find a gap in his defense: scab and cancer.

Potato cancer is very dangerous and can affect not only the potato itself, but also the soil around it. Therefore, if your plants are still sick of them, then all the affected bushes should be immediately burned.

Also in this case it will be necessary to carry out the correct crop rotation. That is, include cultivated crops in it, which will rid your soil of cancer for up to 6 years. As regards chemical protection agents, treatment of planting tubers with a foundation base or benomyl suspension can help.

In the fight against scabs, again, respecting crop rotation and the use of healthy planting material will help. In addition, siderata significantly hinder the development of the disease. As for chemicals, Trichodermin would be extremely useful. They can pickle both the tubers and the soil itself.

In this video you can see various ways to deal with scab:

However, if we are talking about the southern regions, this method is not suitable. In this case, it is necessary to dig the soil in the autumn - so the earth will accumulate more moisture, which is especially important when growing potatoes in a hot climate.

Landings for soil loosening are very good: so the roots are better provided with oxygen. The land should not be very wet, but not dry. As soon as the soil surface forms a crust, it is necessary, using a tool that does not damage the plant, to loosen the ground.

Such a technique as hilling is especially recommended for the northern regions of Russia and for the middle zone. The optimal time for hilling is evening or early morning, but never the middle of a hot day. Be sure to before this potatoes watered. The first hilling is carried out at a height of 13–15 cm bush and after 20 days, the procedure is repeated.

Watering potatoes

The frequency of irrigation of potatoes depends on the region of cultivation: in the southern regions without additional moisture, the crop will not grow, and in temperate climates with frequent rains, you can sometimes forget about watering. An indicator that planting requires additional moisture is the condition of the tops: in this case it will wither. Water consumption during watering is about 50 liters per 1 m 2, the ground should be shed to a depth of at least 45 cm.

The first watering is carried out after emergence of shoots. Since during the flowering period potatoes need more liquid than at any other time, it is necessary to water it at the stage of the appearance of the first buds. And the third time they water the potatoes after flowering.

After a month, as the potatoes are planted, it is desirable to conduct dressing. Based on 1 m 2, 10 g of urea and sulphate are taken, 20 g of superphosphate are added, and the composition is diluted in water for irrigation. The second feeding is necessary during the period when the buds appear and the third time after the end of flowering. Very well Lorch reacts to bird droppings in the ratio of 200 g per 1 m 2.