1. Choose excellent varieties

Due to the high temperature and rain in summer, it is not conducive to the growth of radish. Therefore, cultivated varieties must choose varieties with good heat resistance, drought tolerance, strong resistance to pests and diseases, and can form fleshy roots under high temperature conditions. There are hot white and small hook white. , Xia Changbai No. 2, Dongfang Huimei, Xia Meiqiang Early Health No. 3, Xia Kang 40 days, etc.

2, soil preparation and fertilization

It is better to choose sandy loam with flat terrain, deep soil layer and good drainage and water retention conditions. After the harvest of the former sorghum crops, the weeds in the field were removed in time, and then 6,000 square meters of fully-fertilized ring fertilizer, 15 kilograms of potassium sulfate, and 30 kilograms of superphosphate were applied for 667 square meters for deep tillage. After the hoe is flattened, the ridge cultivation is carried out, the ridge distance is 80 cm, the ridge height is 15-20 cm, and each ridge is 2 rows, and the row spacing is 20 cm × 20-25 cm.

3, sowing

1 Seeding rate: The large-sized variety uses 0.5 kg per 667 square meters, the medium-sized variety is 0.75 to 1 kg, and the small-sized variety is 1.5 to 2 kg.

2 sowing time: The sowing time of summer radish can be planted in batches from June to August according to market demand.

3 Seeding method: large-sized varieties are used for hole sowing, the depth of the hole is 1.5～2.0 cm, 2~3 seeds are placed in each hole, and 2 cm thick sieved fine soil is covered after sowing; the medium-sized variety adopts hole-casting or strip-casting, using stripping When the ditch depth is required to be 2 to 3 cm; small varieties can be spread.

4. Field management

1 and time seedlings, seedlings: seedlings grow quickly after emergence, it is necessary to carry out the seedlings in time to ensure that Miao Qi, Miao Zhuang. The first seedling was carried out when the cotyledons were fully expanded, and the second seedling was carried out when there were 2 to 3 true leaves. When the seedlings grow to 5 to 6 leaves, the radish roots of the radish are fixed.

2 cultivating, weeding and cultivating soil: combined with intercropping for cultivating and weeding, the cultivating should be shallow and deep, avoiding root damage. The first and second time seedlings are shallowly ploughed, and the topsoil of the pine can be used; after the third seedling, a deep ploughing is carried out, and the soil in the ditch is cultivated on the noodles to prevent the seedlings from falling.

3 watering: high temperature in summer, soil water evaporation is fast, according to the soil moisture and radish fertility characteristics, timely watering. Germination period: watering according to the principle of “three waters and clear seedlings”, that is, watering once after sowing, in order to facilitate the germination of seeds; pouring water when planting the buds to facilitate emergence; In order to facilitate seedling growth. Seedling stage: Due to the shallow roots of the seedlings in the seedling stage, the water requirement is small, and the water should be appropriately watered according to the principle of “less pouring and pouring”. The leaf growth period: the number of leaves in the upper part of the radish is increasing, the leaf area is gradually increasing, the fleshy roots are also expanding, and the water demand is rapidly increasing. It should be watered according to the principle of “appropriate amount of water pouring”. The succulent roots are inflated: in this period, the water needs to be the largest. It is necessary to water the water and keep the soil moist, so as to avoid the lack of water and cause the roots of the fleshy roots.

4 Fertilization: 667 square meters of radish seedlings will be applied with water 8~15 kg with water to promote the growth of leaves; when the fleshy roots are exposed, 5-10 kg of urea, 10 kg of potassium sulfate, and superphosphate are applied with water. Calcium 3 to 5 kg to promote the expansion of fleshy roots. In the radish roots of the radish, the radish can be sprayed with 0.3% borax, 0.4% calcium chloride and 0.3% borax mixture, or 0.2% potassium dihydrogen phosphate and 0.3% borax mixture to promote the radish meat. The enlargement of the roots.

5, pest control

In summer, the temperature is high and there are many insect pests, mainly including cabbage caterpillars, aphids, diamondback moths, and yellow strips. In the early stage of prevention and control, in addition to black light and yellow plate trapping in the field, in the early stage of the occurrence, the yellow stripe jumper can be sprayed with BT emulsifiable oil 800-1000 times liquid or 80% trichlorfon WP 1000 times liquid spray; The larvae and the diamondback moth can be sprayed with 48% lysine emulsion 1000 times solution, 10% imidacloprid WP 2500 times solution, 5% taibao emulsifiable oil 1000 times solution spray, and sprayed once every 5 to 7 days, even spray 2~ 3 times.

6, timely harvest

The harvest time of summer radish is still in the high temperature period. After the fleshy root is fully expanded, it will be harvested and marketed according to market demand.

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