In winter leeks production, usually only two knives are harvested to facilitate root cultivation and improve the quality of leeks. However, after harvesting two knives, some vegetable farmers often continue to produce three knives in order to improve economic efficiency. The author believes that the production of three-blade leeks in winter sheds depends on the specific situation and must not be harvested blindly, otherwise it will be counterproductive. To determine a reasonable number of harvesting stubbles to improve economic benefits, the following aspects should be considered emotionally for reference:
1. Planting period and current year growth. In the first year of new leek, the root system has less growth and less storage of nutrients, which is not suitable for multiple harvests. It should be 1 to 2 knives. 2 to 4 years, leeks have strong growth, strong tillering force, and more nutrients stored in the stem disk. Depending on the growth of the plant in that year, 2 to 3 knives can be harvested. The absorption and storage function of the old-rooted chives over 4 years have been greatly reduced. It is recommended to reduce the number of harvests to facilitate root cultivation.
2. Market demand and price changes. If the market demand this season is large, the supply of leeks is in short supply and the price is good, then in order to achieve higher economic benefits, you can consider harvesting three knives. On the contrary, after the harvest of two-blade leeks, the market outlook is not optimistic: supply exceeds demand, fewer vendors, slow sales, and unstable prices. It is recommended that three-blade production be stopped and that root cultivation be the main focus.
3. Soil fertility. The yield and high yield of leeks in the greenhouse can not be separated from its excellent soil growth environment. If the soil is fertile, deep, rich in organic matter, strong in water and fertilizer retention, and good in air permeability, it can meet the nutritional needs for the continuous growth of leeks. On the contrary, if it is sandy, it is easy to dehydrate and defertilize, and the number of harvests is increased blindly. The root system is weak due to insufficient nutrient absorption, and the yield and quality are reduced.
4. Add organic fertilizer. Organic fertilizer contains a variety of nutrients required by crops. It is a complete fertilizer and has a unique effect on improving soil and fertility. In addition, in the semi-closed state of the greenhouse, a large amount of carbon dioxide can be released during the decomposition of organic fertilizer, which becomes an important source of photosynthesis. Therefore, organic fertilizer is an indispensable fertilizer if the leek is to be harvested and stabilized, and the number of stubbles is increased.
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Disposable Suction And Irrigation Sets
A Disposable Suction Irrigator Kit is a medical device used during surgery to remove blood, debris, and other fluids from the surgical site. The kit usually includes a straw and rinse tube, both of which are disposable and designed to be used only once. Suction tubing is used to remove fluid from the surgical site, while irrigation tubing is used to introduce sterile saline or other solutions to the surgical site to help clean and irrigate the area. The single-use nature of the kit helps reduce the risk of infection and cross-contamination between patients.
Product features of disposable suction and irrigation equipment:
1. Dual functions of flushing and suction, one machine with multiple functions;
2. The flushing and suction functions are clearly distinguished, and the operation is simple, one-handed operation, convenient and fast;
3.Fully transparent pipeline design provides the best way for suction observation operation;
4.The front and rear ends are detachable, which facilitates the absorption of foreign bodies during the operation.
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