Agricultural films are now playing an increasingly important role in agricultural production. If the use of agricultural films can be increased, the production costs will be greatly reduced. Here are a few tips for using a film:
The plastic film is covered flatly, and the film is used to cover the surface of the planted crop or cultivated crop directly after several times of use. After the temperature rises, the plastic film is recovered and stored for reuse. This kind of coverage is temporary coverage, short time, and less damage to the plastic film. In the spring and autumn season, the crop is used for heat preservation, wind protection and rain protection.
Once covered, multiple crops of spring crops are covered with plastic mulches, kept intact after summer harvest, continued to be used by autumn crops, or used during autumn in winter. Such as spring cucumber, beans, etc. covered by plastic film, autumn can be used for cabbage, cabbage and so on. The use of the same film in the spring and fall seasons can increase the temperature and accumulated temperature and reduce investment.
First, make a small arch shed, and then make a plastic film as a small arch shed before using the plastic film. After falling, use the local film to apply it to the cultivation of early spring crops. The bamboo or branches used for the awning should be smooth without sharp corners so as not to damage the film.
Gully cover, multiple use of gully cover cultivation, change sorghum sowing (or planting) for the high sorghum planting. On a sorghum 15–20 cm high and 60–70 cm wide, open two grooves 15–20 cm wide and 20 cm deep, sowing or planting in the trenches, covering the membrane with a flat surface, and touching the seedlings with the membrane. Store the membrane until it is used for the next time, or open the hole to make a membrane.
The old film sets the new film, the double film covers the early spring crop. After the seeding, the new film is placed on the surface, and then the old film is placed on the outside of the new film as a small arch; or after the seedlings of the crop are set, the film is broken with the new film, outside. Doing small arches and covering old membranes can increase soil moisture, promote seed germination and seedling growth, make secondary membranes available for secondary use, and continue to use new membranes.
It should be noted that when using repeatedly, high strength, long life or thick film should be used as a multi-purpose film. However, with the extension of the use of time and the increase in the number of uses, the light transmittance and heat insulation of the film will be reduced, so the general use of 2 to 3 times that need to replace the new film.
RP International Ltd is top Citric Acid Supplier and Manufacturer in China.
Citric acid is a weak organic acid found in citrus fruits. It is a natural preservative and is also used to add an acidic (sour) taste to foods and soft drinks. In biochemistry, it is important as an intermediate in the citric acid cycle and therefore occurs in the metabolism of almost all living things. It also serves as an environmentally benign cleaning agent and acts as an antioxidant. Citric acid exists in a variety of fruits and vegetables, but it is most concentrated in lemons and limes, where it can comprise as much as 8 percent of the dry weight of the fruit.
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