Be careful in your garden! Prevention and coping measures for persistent crop disorder

What is intermittent undercutting disorder? What kinds of obstacles do you have?

Continuous crop disorder means a growth disorder that occurs when members of the same family are grown continuously in the same place. For example, tomatoes, peppers, potatoes, and eggplants all belong to the same family.
There are three main types of obstacles:

1) Soil disease

Growing vegetables in a field where the ratio of pathogenic bacteria, fungi and viruses in the soil increases so much that they are more susceptible to disease.

A disease where the leaves remain green and withered. Vegetables such as tomatoes and potatoes are easy to get bored.

A disease that causes a lot of swelling on the roots that prevents the plant from absorbing water and nutrients and is prone to wilting. Most likely to occur in vegetables of the Abrana family.

2) Physiological disorders

There are many different nutrients required for vegetable growth, but if each of these nutrients is too low or too high, growth is impaired.

① Leaves are lush, flowers bloom but bear no fruit. Shrink leaves ▶ ︎

② Rotten tomatoes ▶ ︎

③ Parts other than leaf veins turn yellow ▶ ︎

3) Injury caused by insects in the soil

Nematodes are a prime example of a disorder caused by too many specific insects in the soil. Nematodes are small, transparent, invisible insects in the soil. Initially there are innumerable amounts in the soil, but some of them are harmful to vegetables when they grow too much. In particular, the famous Nekobu nematodes and root rot nematodes cause root swelling and root rot inhibiting growth.

Why does persistent truncation error happen?

Persistent crop disturbance is caused by an imbalance of nutrients and soil organisms in the soil when plants of the same family are planted. In the case of vegetables of the same family, the nutrients absorbed from the soil and the organisms deposited in the vegetables are almost the same, so if just grown like this, it will gradually lose balance.

In other words, even if continuous cultivation is not the cause, if you are growing vegetables upsets the balance of nutrients in the soil and soil organisms, such as adding too much fertilizer. has a strong ingredient or is constantly growing too many crops. Please note that similar symptoms will occur.

What vegetables are susceptible to continuous crop disturbances?

There are some vegetables that are susceptible to intermittent crop disturbances. For vegetables that tend to the rotation period, each type has instructions on the rotation time, so vegetables should not be planted with the same object during that time. This turnaround time differs depending on soil conditions, so please use it as a guide.

SubjectsVegetable instanceTurnaround time
Egg familyTomato, eggplant, chili, potato, etc.3-4 years
The Uri familyCucumber, bitter melon, zucchini, pumpkin, etc.2-3 years
They passLakkasei, green beans, soramame, etc.2-3 years
The Abrana familyCabbage, cub, daikon, hakusai, etc.1-2 years
The Satoimo familySatoimo3-4 years
The few vegetables cause intermittent problemsSweet potato, komatsuna, onion, carrot, garlic, etc.nobody

Countermeasures / prevention of intermittent undercutting disorder

Let’s try to create a field that does not prevent continuous cropping, focusing on the following four methods. If symptoms such as crop disturbances are constantly present, the farmer will chemically disinfect, but it is not recommended in home gardens. Even if you do take time, get it up basically doing the following four things.

① Perform circular cut

Systematically changing the planting site so that vegetables of the same object are not grown in the same place continuously is called a single crop. By dividing the field into 4 to 5 zones and planting vegetables of different subjects every year, we avoid continuous cropping.

② Growing different types of vegetables (plants) ・ Using companion plants

By planting a variety of plants such as vegetables and flowers in one place, we avoid losing balance. As long as it does not hinder the growth of vegetables, weeds can be left on the field to maintain diversity.

Not all vegetables combine well, but use companion plants that have a positive effect on each other. Particularly for nematodes, plants in the Kiku family, trees of the Negi family are often used as a countermeasure against tomato wilt and cucumber string cracking.
For more information on companion plants, see the article “Planning a seedling! Starting a companion plant”.

③ Create a balanced soil

By keeping the balance of the nutrients and soil organisms in the early tillage, a field can be created that is less likely to interfere with continuous farming. In particular, we recommend soil preparation based on weed compost, which tends to balance minerals and increase the number of microorganisms that coexist with vegetables.
Reference: Easy for beginners! Make the soil with weed compost[Cánh đồng là một vùng hoang dã nhỏ tập 8]

④ Field restoration (weed planting and green manure fertilization)

Using the power of nature to restore the balance of our ecosystems, we will reduce the obstacles to continuous cultivation by providing a respite from growing vegetables. Green manure crops such as legume clover and rice plants should also be planted, which are useful for soil regeneration.

Daily precautions are important

Continuous amputation is like a disease of the human lifestyle, once it becomes sick, it takes time to cure and there is no easy-to-understand solution. Please take the four countermeasures introduced this time before it becomes a constant trimming obstacle. If you have already done so, don’t rush and gradually rebalance the sector.

Next time we will enter winter! So I will tell you the precautions and points of field work only for winter. expected!