How to choose cotton seeds? What are the methods of raising seedlings?

Cotton is one of the most important crops in the world, with high yield and low production cost, which makes cotton products cheaper and can be made into fabrics of various specifications, from light and transparent Barry yarn to thick canvas and velveteen. It is suitable for making all kinds of clothes, furniture cloth and industrial cloth, and it is also an important honey source plant. So how to choose cotton seeds? What are the methods of raising seedlings? Next, let's have a look with the editor.

First, how to select cotton seeds?

Cotton is usually propagated by seeds, the seeds have a strong seed coat and well-developed embryos, a longitudinal groove on the ventral side of the seed is the hilum, and the tip of the seed is the bulge of the navel. In order to improve cotton yield, seed drying, soaking and seed dressing are usually needed in the early stage of seed sowing.

Seeds that have been aged for several years have a budding rate, no vigor, and difficulties in topping the soil, so they must be avoided when choosing. To select high-yield and high-quality varieties, to have business qualifications to buy units, to check whether the seed bag logo is standardized.

Second, what are the seedling methods of cotton?

1. Raising seedlings with plastic film scaffolding

Most of the ecological cotton areas across the country adopt the way of raising seedlings with plastic film scaffolding, mainly after sowing and covering soil, covering with film on the bow frame, sealing all around, ventilating and cooling after finishing the seedlings.

2. Raising seedlings with nutrient blocks.

Nutrient block seedling is also known as square seedling, square seedling, because of the different measures taken in different places, such as using river mud and pond mud as bed soil for grid breeding, which is called river mud grid seedling.

3. Raising seedlings with plastic film.

The plastic film flat seedling raising saves labor and cost, the management procedure is simplified, the operation technology is simple, and it is easy to be mastered by the masses. The film is directly spread on the seedling bed, and the film is broken and released in the top soil of the cotton bud, and the thickness of the plastic film used is only 18% of that of the commonly used agricultural film. In the areas with more overcast and rainy weather in the seedling stage, the disease and death of seedlings are more serious, and the seedling raising period should be properly postponed in production, which can be used in the late stubble transplanting cotton field.

4. Double-film seedling raising

Double-film seedling raising is a way of laying a layer of plastic film first after sowing and covering soil, and then adding arch shed, which solves the problem that stiff seedlings and diseased seedlings are easily caused by rainy and low temperature weather after sowing in early spring, and the quality of cotton seedlings is good and the budding period is earlier.

5. Raising seedlings with ventilated omentum

Ventilated omentum seedling is to cut the conventional plastic film along the middle line, sew a 10-15 cm wide nylon window screen in the middle, cover the scaffolding, and adjust the temperature and humidity naturally through the open part of the ventilation network, without the need for day and night cover.

The above is the introduction of cotton, on the basis of the above various seedling methods, in order to simplify the seedling procedure, various localities have successively introduced new methods such as substrate seedling, soilless seedling, mechanized seedling, water floating seedling, plastic tray seedling and so on. Farmers can choose seedling raising methods according to the actual situation.

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