Summer radish anti-season cultivation techniques
Radish is a kind of vegetable that the broad masses of the people like to eat. In the past, the radish was only cultivated in the autumn and could not satisfy the people's annual demand for radish. In recent years, according to the author's exploration of the anti-season cultivation of radish, combined with the successful experience of a large number of vegetable farmers, the summer radish anti-season cultivation techniques are introduced as follows.
First, choose a variety
The summer radish planted in the off-season should be selected from high quality varieties with strong heat resistance and strong disease resistance. Such as Xia Changbai II, Hui Mei East, Xia Mei Lian early birth on the 3rd, Xia Kang 40 days and other varieties.
Second, soil selection and fertilization
In the land where radishes are grown, soils rich in humus, deep soil, and well-drained sandy loam soils should be selected. In front of the crops, corn cultivars with high fertilization, low fertilizer consumption, and large amount of fertilizer left in the soil should be selected, such as early cowpea and cucumber plants. Deep ploughing and soil preparation, multi-ploughing, drying in the sun, combined with deep ploughing before sowing, 3,000 kg of fully-fertilized organic fertilizer per acre, 100 kg of plant ash, 25-30 kg of superphosphate, ploughed into soil, and then ploughed Into the soil, or the application of organic fertilizer 2000 kg, more than 20 kg of compound fertilizer, a full application of base fertilizer, after seeing seedlings.
Third, timely sowing
Appropriate sowing date for summer radish is generally in the middle and early April in the Huang-Huai-Hai area, sowing early, and the disease is serious when the radish enlarges. Ridge cultivation, ridge distance 80 cm, height 15 to 20 cm, double rows per ridge, spacing of 20 cm (20 to 25) centimeters, more than 26,000 per mu. Generally 2 grains per hole, 5 to 7 leaves in time when the seedlings, sowing must be used when the soil (such as trichlorfon, phoxim, etc.) seed dressing or seed dressing to prevent underground pests, while applying 40 per acre % 1.5 kg of pentachloronitrobenzene to prevent fungal diseases. After sowing in addition to cover soil, it should be covered in order to maintain the moisture, to ensure the emergence of rapid and tidy, but also to prevent rain water consolidation soil, impede the emergence of seedlings, covers available wheat straw, ash, etc., after sowing cover soil thickness of about 2 cm, not Over 3cm, covered with a shade net at the same time, keep the field wet and not stained.
Fourth, field management
The lack of replanting was timely checked after sowing, and black rot and soft rot were found in the middle and later stages. Initially, 10 million units of agricultural streptomycin were sprayed, or DTM fungicide was sprayed with 400 to 500 times liquid. In addition, we should also pay attention to the locust prevention, mosaic virus disease found, with the virus K or plant disease control.
Summer is hot, sunshine is strong, and the fields are generally dry. Pay special attention to reasonable watering. During the germination period, water should be fully watered at the time of sowing. The soil moisture content should be above 80% to ensure that the seedlings grow quickly and neatly. In the seedling stage, the soil moisture content should be 60%. It is necessary to grasp the principle of less pouring and pouring; Period (from broken white to bare shoulder), should be appropriate irrigation, but not too much water; root growth period should pay particular attention to fully uniform water supply, soil moisture 70% to 80%, air humidity 80% to 90%, if Uneven water supply can easily cause cracking. Summer radish watering avoid watering at noon, it is best to water in the evening. During the topdressing period, in principle, it is emphatically applied before the radish enlargement period. Topdressing nitrogen fertilizers can be used for manure and chemical fertilizers. Avoid excessive concentrations or too close to the roots to avoid burning roots; excessive human urine concentration will make the roots harden and should generally be poured. When water is applied to the water, human urine and nitrogen fertilizers are applied too late, or human feces and urine that have not been fermented and cooked are used, the meat will cause the black hoops to be rooted, deteriorated in quality, or be broken, or have a bitter taste.
V. Harvesting
The growing period of about 50 days can be listed in batches.
Freeze drying, also known as lyophilisation or cryodesiccation, is a low temperature dehydration process[1] that involves freezing the product, lowering pressure, then removing the ice by sublimation.[2] This is in contrast to dehydration by most conventional methods that evaporate water using heat.[3]
Freeze drying results in a high quality product because of the low temperature used in processing.[1] The original shape of the product is maintained and quality of the rehydrated product is excellent.[4] Primary applications of freeze drying include biological (e.g., bacteria and yeasts), biomedical (e.g., surgical transplants), food processing (e.g., coffee) and preservation.[1]
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