After the weather turns cold, many vegetable farmers cover the mulch film by punching one by one to increase the ground temperature. At present, the film mulching has become a vital measure in vegetable production, not only in improving the ground temperature. It has played a prominent role in water conservation and fertilizer conservation, greatly prolonging the vegetable cultivation period, and promoting stable production and yield of vegetables. In addition, the mulch also has the effects of inhibiting weed growth, heat preservation and humidity reduction.
After continuous development, there are more and more types of mulch films, and different mulch films have different effects. Therefore, when selecting the landform, the vegetable farmers should carefully select and use the mulch film according to the different vegetables and seasons. So what should you pay attention to when using the mulch film, what is the correct way to use it?
1. Don't be close to the crop
If a lot of people lay the mulch, they will be laid up after sowing, and then wait until the seedlings grow out and directly break the membrane, or manually make a small hole to let the seedlings grow. As the seedling grows up slowly, the original hole is obviously not enough, and it is likely that the film will stick to the plant, which is not good.
Especially when the temperature in the shed is relatively high, the soil will evaporate the water, but if the membrane does not pass through the water, it may flow to the stem of the plant, causing decay, or other diseases. Therefore, this mulch and plant stems should pay attention to maintain a certain gap, about 8cm is better. When the weather is cold, you can use things to press around the mulch. If the weather is hot, open the mulch on the side, so that the ventilation is better.
2, do not cling to the ground
Many people cover the mulch directly, they may be directly put on, may be afraid of being blown off by something, and will press some stones up, so it is very bad to be close to the ground. The air in the soil does not come out, especially after the water is poured, so that the roots of the plants are not breathable and cannot grow well. Therefore, before laying the film, you must first make some small brackets inside, about 50 cm apart, you should put one, you can't stick to the ground, otherwise the moisture will be heavy.
3, don't cover too early
Some people just put the mulch on the cover immediately after they have been planted, but they don't need it. Because the mulch of the cover will keep the temperature of the soil within a suitable range, then the roots of the plant will stay in that place, which is not conducive to rooting deep. This is very unfavorable for the growth of the late stage of the plant. It is generally recommended to wait until the colonization has been completed for half a month, and then cover the mulch.
Many people will cover the mulch film in order to be afraid of the crop being frozen. However, if you do not pay attention to the method of use, it will not only have no effect, but will affect the growth of the crop. When using the mulch film, we must pay attention to the above three points in order to make the mulch film produce a better effect.
 Injection Device
Syringes can also call Disposable Medical Supplies, Disposable Syringe With Needle and Plastic Needle Tube such as some scientific instruments in chromatography to inject through the rubber septum. Injecting gas into a blood vessel will cause an air embolism. The way to remove air from the syringe to avoid embolism is to turn the syringe upside down, tap it lightly, and squeeze out a little bit of fluid before injecting into the bloodstream.
In some cases where accuracy is not the primary concern of germs, such as quantitative chemical analysis, glass syringes are still used due to the small error of the glass syringe and the smooth movement of the push rod.
You can also inject some of the juices into meat with a syringe to improve taste and texture while cooking, or into pastries when baking. Syringes can also fill ink cartridges with ink.
Injection Device,Intravenous Infusion Set,Iv Infusion Sets,Blood Pressure Monitor
Haloxylon Ammodendron Medical Equipment Co., Ltd. , https://www.ssmedicaldevic.com