How to properly preserve the agricultural film
1. Preservation method. Wash the used mulch, stack it well, put it in a plastic bag, tie it tightly, and put it in a moist, cool place. Keep away from heat and sunlight. 2. Water storage method. The used mulch film is washed, rolled into bundles or stacked neatly, placed in pits, tanks, and pools, with heavy objects pressed on top, poured into clean water to inundate the film, and then covered with shading. Do not dehydrate during the storage period. This method preserves the plastic film and has a service life of 3 to 4 years. 3. Grass core collection method. The cleaned and dried film was rolled into a tube and straw was used as a core to allow ventilation. It is best to add talc to prevent sticking, and then place the rolled film in the warehouse. Usually move less, and pay attention to high temperature and humidity and rat damage. 4. Earth storage method. Wash the agricultural film and stack it well. Pack it in plastic bags and dig a 80-cm deep pit. Put the mulch into the pit and cover it with 30cm thick soil. 5. Pit deposit method. The cleaned mulch film is then folded with water droplets and placed in a plastic bag. Use a string to fasten the hole and place it in the cellar. Natural pigments are food pigments obtained from natural resources. Pigments extracted mainly from animal and plant tissues and microorganisms (cultures), in which vegetative colorants predominate. Natural pigments not only have the function of coloring food, but also have physiological activity. At present, there are 48 kinds of edible natural pigments approved to be used in China, commonly used chili red, beet red, monascus red, cochineal red, gaolianghong, sodium copper chlorophyllin, turmeric, gardenia yellow, carotene, algal blue pigment, cocoa pigment, caramel pigment and so on. Roselle Calyx Extract,Phycocyanin,Lutein,Butterfly Pea Flower Powder,Beta Carotene Powder,Sodium Copper Chlorophyllin Xi'an Gawen Biotechnology Co., Ltd , https://www.amulyn-bio.com