Cultivation technology of white radish

As a popular vegetable with many benefits, white radish is widely grown in the open air in spring, summer and autumn across the country. In the fields in the countryside, white radish can be seen everywhere. However, to achieve high yield, high quality and less disease of white radish, the correct planting method must be mastered. Let’s learn about the cultivation technology of white radish.

1. Land preparation and fertilization

During the process of tilling the land, if you find signs of insect pests or diseases in the soil, you can sprinkle wood ash, lime powder or tea bran water during tillage to eliminate the pests and pathogens in the soil. After plowing, divide the land into several ridges about 80 cm wide, and then dig trenches about 30 cm deep on the ridges at intervals of 40 cm. Bury the prepared farmyard manure in the ditch. If the farmyard manure is dry, water it first to moisten it and then cover it with soil. After applying the base fertilizer, you can choose to sow white radish on the same day, or water the soil to moisten it first and let it sit for a day or two before sowing.

2. Planting

After preparing the land, dig seed pits on the ridges with a spacing of 20-30 cm between plants and 25 cm between rows. Sprinkle about 4 white radish seeds in the seed hole, cover with half a centimeter to one centimeter thick soil, and lightly compact it. If you have wood ash, you can sprinkle it in the seed pit after sowing to isolate the seed odor and prevent pests from eating the seeds. After sowing, if the soil is dry, you can sprinkle water to moisten it.

3. Field management

Thinning: Thin out the white radish seedlings when they grow to 2-3 leaves, remove weak and diseased seedlings, and thin out twice with an interval of seven days. When the seedlings grow to 5-6 leaves, they are transplanted and one healthy seedling is retained in each hole.

Intertillage: Intertillage should be carried out about seven days after the seedlings are transplanted, starting with deep and then shallow, and starting with near and then far. After tillage, add appropriate amount of soil to the roots to promote root growth and provide a good soil protection layer for the white radish to hatch.

Watering: White radish is generally watered twice during its growth process. After inter-row cultivation and seedling squatting, water the seedlings once when the leaf seedlings are growing vigorously, but be careful not to water them too much. Water the plant once more during the fleshy expansion period, and then stop watering if the soil moisture is moderate.

Top dressing: mainly base fertilizer, supplemented by top dressing. For white radish with a short growth period, less topdressing is needed if base fertilizer is sufficient. Large white radishes have a long growing period and require appropriate topdressing. Generally, apply light human manure once after the first and second thinning. Apply the third topdressing when the crops burst. The manure water can be more concentrated. At the same time, add 5 kg each of general calcium and potassium sulfate per mu. For medium and small radishes, only 2-3 times of fertilizer is required. When large white radishes have exposed their shoulders, 1000-1500 kg of human manure and urine should be applied per mu.

4. Disease prevention and control

There are relatively few diseases in white radish, the main ones being black rot, mosaic disease, and black heart disease. You can use 57% metalaxyl mancozeb and 70% thiophanate-methyl for spraying, spraying twice every seven days. The main pests are cabbage loopers and aphids, which can be controlled by spraying 2000 times diluted 5% cypermethrin, with good results. You can also use wood ash as a control method. Spread wood ash evenly every three days from the time the dew rises in the evening to the time the dew dissipates in the morning. This will have a good control effect.

5. Harvest

Different varieties of white radish have different growing and harvesting periods. Generally, the suitable harvesting period is when the leaf color turns lighter and the fleshy roots are fully expanded. Spring radishes are harvested from March to May, and winter radishes are harvested from late October to February of the following year.

The above is an introduction to the key points of white radish cultivation technology. White radish is grown in many areas and is relatively simple to grow, but you still need to pay attention to details.