Dryland radish summer sowing technology

Radish is the main vegetable variety supplied by urban and rural residents in winter. The demand is large, and it is especially important to implement high-yield and high-quality cultivation techniques. The experience of planting radishes in the dry land of the northern Hebei region is summarized as follows:

First, the selection of the land preparation Radish is a cruciferous crop, and can not be replanted before the same crops. Choose sandy loam with thick soil layer, fertile soil and good ventilation. The planting plot is deeply ploughed by 20 cm, and the stalk is flattened to facilitate the growth of the radish rhizome.

Second, fertilization ridges The yield of radish is high, the soil nutrient consumption is large, and the fertilization is mainly based on soil fertilizer, supplemented by chemical fertilizer. In combination with land preparation, 4,000 kg of fertilized soil fertilizer, 25 kg of superphosphate, 20 kg of potassium chloride, or 60 kg of NPK compound fertilizer. The ridge is planted, the ridge height is 15 cm, the ridge distance is 50 cm, the ridge is planted, the ditch is drained, and the rhizome is enlarged. Before ridges, 10% of the worms are 1200 grams per mu, mixed with poisonous soil, sprinkled into the surface layer to prevent underground pest damage.

Third, the selection of seeding selection Baiyu, Daqingpi, Deri 2, Baoluo 1, Guoguang 1, Fengguang generation, Fengqiao generation, Dagen radish and other varieties. The sowing time should be determined according to the local climatic conditions, above 1000 meters above sea level, sowing in late June, where the altitude is lower, sowing in late July is appropriate. The amount of seed used is 500-600 grams, and the plant spacing is 20 cm. Use the newly produced seeds of the year to prevent radish convulsions.

4. Seedlings of Miao Ding Miao radish are seeded at 5 points per seed. When the seedling grows to 2-3 pieces of true leaves, 2 leaves per hole are left. The weak seedlings and diseased seedlings are removed. When 5 pieces of true leaves are grown, the seedlings are fixed. , so that the individual seedlings grow robustly.

V. Cultivating and weeding After radishing the seedlings, timely ploughing and loosening the soil and removing the weeds can promote the combination and promote the growth.

Sixth, topdressing and spraying fertilizer After 30 days of radish emergence, when the soil moisture is good, the roots are topdressed with fertilizer, 20 kg of urea, 10 kg of chlorination, and acupoint application. In the case of dry weather, 0.3% potassium dihydrogen phosphate can be sprayed on the foliar surface, sprayed once every 7 days, and sprayed 3 times, which is beneficial to root enlargement and increase yield.

7. Prevent hollow use of chemical drugs. When the radish grows to 8 leaves, start spraying 0.3% borax solution on the foliar surface, once every 15 days, spray 3 times, or spray 10 ml/kg naphthalene acetic acid solution. Spray once every 15 days, spray a total of 2 times, improve the quality of the rhizome, delay the maturity and prevent hollowness.

Eight, pest control radish diseases mainly black rot, mosaic virus disease, white spot disease, soft rot, soaking seeds with 50 ° C warm water for 30 minutes before sowing, the initial stage of the disease spray 72% agricultural streptomycin 15 grams of water 80 kg , sprayed once every 7 days, a total of 2 times. The main pests are yellow beetle, aphid, cabbage caterpillar, diamondback moth, etc., treated with 5% cypermethrin 2000 times solution, separated by 7 days, and prevented twice, prohibiting the use of high residual pesticides.

9. Harvest at the right time When the radish grows to 1.5-2 kg, when the old leaves of the ground are yellow, when the rhizome is not yet sugary, it is regarded as a timely harvest or after the growth period is calculated, and the harvest is as long as 65 days. should.

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