Now, it is time to plant plastic film onions. Below, introduce the work that should be done before and after onion transplanting.
First, do fertilization
Onion is a kind of high-fertility vegetables. The lack of any element of nitrogen, phosphorus, and potassium fertilizers will lead to a reduction in production. In order to achieve high quality and high yield, it is necessary to do scientific fertilization and sufficient base fertilizer. Generally, the total N, P, K content is more than 45%, 50 kg of low-nitrogen, high-phosphorus, and high-potassium, sulfur-based compound fertilizers, and 5,000 kg of farmyard fertilizers. After spreading the fertilizer, the ploughing will be performed, and the soil will be ploughed. Made of 100-120 cm wide cymbals.
Second, choose strong seedlings
Before transplanting, seedlings with a seedling age of 50-55 days are selected. At this time, the seedlings are easy to root, and the growth of the seedlings resumes after the transplanting. Seedlings are 6-8 mm in diameter and 25 cm in height. Before spraying for 10-15 days, 0.2% potassium dihydrogen phosphate fertilizer was sprayed on the nursery bed to promote the early rooting of the seedlings after colonization.
Third, cover the film
Film cultivation can enhance the ability of onion to resist cold in winter, increase the ability of soil to retain water and fertility, and greatly increase onion production. Before filling the film, water should be poured to make mash. After all the osmosis water is completely infiltrated, when the soil is moist, spray 33% of the weeds and pass 100 ml per acre. Spray evenly on the surface of the mulberry, then cover the surface. Prepare the mulch and laminating tools. Choose wind-free weather during operation. Use the earth firmly on both sides of the membrane, otherwise the mulch will be damaged due to the wind, and it will not be convenient for field operations.
IV. Transplanting colonization
In the middle of our province, the transplanting period is generally from late October to early November. Before transplanting, we must pay attention to listening to the weather forecast. It is better to have no frost or strong winds to cool the weather in one week. 5 days before planting, cover with plastic film, raise the ground temperature, and drill holes in the mulch. The spacing is 15 cm and the spacing between plants is 15 cm. After transplanting, they should be transplanted immediately. When transplanting, roots should not be exposed on the surface, but they should not be too deep. It is better to have a planting depth of 2-3 cm.
1% salidroside in rhodiola rose extract is a kind of rhodiola rose extract, is the Key Product of our company, with the stem and leaves of rhodiola rhodiola as raw materials, after extraction, concentration, drying into brown powder.
Rhodiola rhodiola extract is a natural extract extracted from Rhodiola grandiflora, which is refined, concentrated and dried.It is easily soluble in water, soluble in methanol, soluble in ethanol, insoluble in ether.It's stable against heat.
Rhodiola, the name of traditional Chinese medicine.They are the dry roots and rhizomes of Rhodiola roseum, .Mainly produced in the Chinese mainland Jilin, Hebei, Shanxi, Xinjiang and other places."Traditional Chinese Medicine Dictionary" records: Rhodiola "cold, sweet and astringent taste.Promote blood and stop bleeding, clear lung and stop cough.Treatment of cough, hemoptysis, pneumonia cough.
Rhodiola rhodiola is commonly found wild on sunny slopes, stone crevices, alpine meadows, alpine rock crevices, hillside grasslands, shrub margins, and dry sandy soils in mountains.Its adaptability is strong, like slightly cold and humid climate conditions, cold and drought tolerance, soil requirements are not very strict, should choose high altitude, cold climate, short frost-free period, summer day and night big temperature difference in the mountain cultivation.
Loam or sandy loam with rich humus, deep soil layer, sufficient sunshine and good drainage should be selected for cultivation, and forest cut or raw wasteland can be used for cultivation in mountainous areas.
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