Anti-season white radish cultivation technology
The anti-season radish is mainly related to the winter radish in autumn and winter radish, that is, white radish cultivated in spring and summer. White radish is beautiful, crispy, sweet, fresh and juicy. It is a kind of vegetable that people like to eat. It is also one of the main varieties of exported and deep-processed vegetables. Because it is an off-season cultivation, the market has large development space, high prices, and economic benefits. it is good. The technical highlights of the retro-season cultivation of white radish are described below.
I. Variety selection
In summer cultivation, heat-resistant, disease-resistant, and high-yielding varieties should be selected, such as Xia Zaosheng III, Xia Qiu Mino, Bai Qiu Mino, and Bai Yu Wang. These varieties are beautiful in appearance, the skin is pure white, smooth, less fibrous roots, root straight, length of 35 to 40 cm, fleshy root diameter of about 6 to 6.5 cm, single plant weight up to 1 kg or more, anti-soft Strong rot and black rot, good taste, high yield. In addition, the color of the rich collar leather is half white and half green, the fleshy root diameter is about 8.5 cm, and the weight per plant is more than 0.9 kg, and the disease resistance is better.
Second, the main cultivation season and sowing date
Summer planting is carried out at the end of June to the beginning of July and harvested from late August to early September.
Third, soil preparation, fertilization, sowing
Since the white radish has a long root and requires deeper plough layers (above 30 cm), the soil should be loose and fertile sandy loam. Before planting, fully prepare the soil, loosen the soil, level the soil, remove the stones, rubble and hard objects in the soil. Apply 2000 kg of high-quality organic fertilizer per acre, 20 kg of diammonium phosphate, and 3 ~ 4 kg of potash fertilizer. According to a 50 cm line spacing, a small ridge height of 15 cm, in the middle of a small ridge ditch, dark water sowing or dark water seeding, sowing rate of 2 to 4 / hole. Dingling plant spacing 25-30 cm.
Fourth, field management
In summer, cultivation is mainly based on heat resistance, drought resistance, flood control, and pest control. The cultivated plots must be selected for convenient irrigation and drainage, loose soil and fertile sandy land. Soil preparation, fertilization, sowing methods and seeding rate, drainage ditch shall be set up in the field to facilitate timely drainage in rainy days.
(1) Avoid sowing when raining.
(2) High temperature and dry weather should ensure that there is sufficient water. After emergence, it is necessary to dilute the water sooner or later, and lower the temperature of the well water to help improve the field microclimate and keep the soil moist.
(3) Open the cornice on rainy days to prevent water accumulation and root damage. After heavy rain, water is poured to increase the oxygen content of the soil and promote normal root growth.
(4) and time seedlings, prevent weeds.
(5) When the fleshy root begins to expand, it is necessary to chase the appropriate amount of nitrogen and potassium fertilizers. Ensure sufficient and uniform supply of water and fertilizer.
V. Pest Control
Summer cultivation in addition to control of aphids, spotted fly, but also control of cabbage caterpillar, noctuid moth and other pests, can be used Baicao No. one, 100 insect net or 48% of the music to control.
The main diseases are soft rot, black rot, and virus diseases. The methods of prevention and control are: 1 strengthen field management, rational watering and fertilization, and control locusts and weeds. The base fertilizer should be full of high-quality organic fertilizer, pay attention to the application of phosphate fertilizer and potash fertilizer, nitrogen fertilization should be appropriate, and can not be too much. 2 The diseased plants should be removed in a timely manner and incinerated with lime to prevent the spread of infection.
Chemical control of soft rot can be used in agricultural anti-751, according to the seed weight of 1% to 1.5% seed dressing, can also be used Fengling 50 g / mu seed dressing, can also use 500 grams of Fengling 50 liters of water, along the side of the root digging trench irrigation Or shower. At the beginning of the disease, 72% of agricultural streptomycin sulfate 3000-4000 times solution was used. Black rot can be mixed with Fumei Shuangfen or 35% metalaxyl, and can also be treated with Fumei Double Soil. At the beginning of the disease, 72% of agricultural streptomycin can be sprayed with 3000-4000 times of fluid or 200 times of Fengling, separated every 7-10 days. Spray 1 time, spray 3 to 4 times continuously.
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