What kind of autumn radish is good? When will you plant it? How to grow high yield?

At present, it is the best season for autumn radish planting, and if you want to grow autumn radish, you need to choose a good variety and master certain management skills. When will you plant it? How to grow high yield?

What kind of autumn radish is good?

For example, the varieties with shallow fleshy roots are not easy to have abnormal roots; the varieties with less water content in radish fleshy roots and the varieties with dense fleshy roots are not easy to crack roots; the white-skinned varieties or hybrids with faster growth rate are less spicy and bitter than the green-skinned varieties, so they are suitable for cultivation in summer and autumn.

At the same time, pure varieties, large seeds, full and full seeds should be selected, and the purity and purity should reach more than 95%. Such as Jiutian 139, de Gao Galfu and so on.

When will the autumn radish be planted?

Under normal circumstances, autumn radish is sown in mid-late July. Harvested in the middle of September, if the climate is suitable, the yield is high and the quality is good.

Autumn radish should be sowed from the end of July to the middle of August. Because the survival rate of transplanting is very poor, the direct seeding method is generally used. Plant 3-5 grains in each hole, the row spacing is 50-60 cm, the plant spacing is 20-25 cm, cover 1 cm with rake gently around the fine soil, step on it with your feet. When the time seedlings with 2 true leaves appeared, 2-3 seedlings were left in each hole, and the seedlings were fixed when they had 4-5 true leaves.

Third, how to grow autumn radish?

1. Select soil

The soil requires fine ploughing, ploughing 18cm to 20cm deep, raking fine after turning, and deep ploughing of soil is one of the key measures for high yield of radish. Every 667 square meters, 2000-3000 kg of rotten high-quality farm manure and 30 kg of ternary compound fertilizer are applied.

2. Rational watering

Radish has different requirements for water in different growth stages, and sufficient water is required in the germination stage to promote rapid germination and neat emergence.

In the seedling stage, we should grasp the principle of "less watering and frequent watering". In the period before the belly breaking period, we should water less and squat seedlings in order to inhibit the growth of lateral roots and promote taproots to go deep into the soil layer. During the period of fleshy root expansion, the amount of irrigation should be increased to keep the soil balanced and sufficient water.

3. Pest control

The main pests of radish are aphids, cabbage insects, yellow striped beetles, and diseases such as black rot, virus, soft rot, black spot, etc., which can be controlled by common pesticides.

4. Points for attention

4.1 early bolting

In the cultivation of radish in northern spring and summer or in summer and autumn in high cold regions, early bolting will occur when seeds are germinated at low temperature or using old seeds, sowing too early, high temperature and drought, improper selection of varieties, extensive management and so on.

Therefore, in the production, it is appropriate to select varieties with strong winter nature, sow new seeds, sow at the right time, strengthen the management of water and fertilizer, and pay attention to seed selection to improve species quality and prevent varieties from mixing.

4.2 bran heart

The main reason for the bran heart is that the fleshy roots of some varieties are too soft and expand rapidly. In addition, it is easy to form bran heart in the later stage, such as improper management of water and fertilizer, high temperature and drought, more nitrogen and less potassium, early sowing, late harvest and so on.

4.3 split root

The main reason for root cracking is the uneven formation of water supply in the early stage of fleshy root expansion. In order to avoid the occurrence of root cracking, uniform water supply should be provided during the expansion period of fleshy roots, and proper application of boron fertilizer can enhance toughness.

4.4 spicy and bitter

Spicy taste is often related to drought and heat, lack of fertilizer, damage to diseases and insect pests, inadequate expansion of fleshy roots, and so on. Bitterness is caused by too much nitrogen and insufficient phosphorus and potassium. Management should be strengthened and scientific formula fertilization should be advocated.

4.5 forks

Bifurcation is the result of the conversion of lateral roots from absorbing roots to stored roots. In general, fertilizer is not fully mature, soil ploughing layer is shallow, soil preparation quality is poor (there are tiles in the soil, and the main root is injured in the process of replanting, etc., which affect the growth of the main root and lead to deformities.