Although it is only ten days before the Great Cold Season, the temperature in most areas has been constantly refreshed. It not only brings a lot of inconvenience to people's lives, but also brings many different levels of crop facilities in many places. The hazard, for example, the freezing of crops, not only causes freezing of crops, but also induces infections. So, the question is, how do we manage the greenhouse crops that have already caused the freezing disaster? Greenhouse facility crop frost disaster management 1. For crops that have been frozen and frostbittened, they should be cut off in time to prevent the crops from freezing and frostbite from infecting diseases and infecting other healthy crops. 2. When a large shed crop has a freezing disaster, do not raise the temperature immediately to prevent secondary damage to the leaf plant due to excessive temperature difference, and the rapid increase of moisture in the shed. 3. Spray 0.3% nitrogen fertilizer and clean water on the foliar surface, which can prevent excessive water loss and promote the absorption of water nutrients by the leaves. 4. Spray the drug in time to prevent the invasion of other bacteria. 5. If it is still in a low temperature climate for a while, you can create a dark fire inside the greenhouse to increase the temperature inside the greenhouse. You can also choose to use the warming lamp and the warming lamp to supplement the light and raise the temperature. 6, reduce the amount of watering and watering, because if watering frequently, because too much watering, will reduce the low temperature of the table, is not conducive to the growth of crops. 7. If the soil is in a dry state, you can pour a small amount of water in the morning and combine it with rooting fertilizers such as amino acids and alginic acid. 8. Drainage is a very important step. It is mainly used to release moisture and prevent disease by releasing air into the shed. Even in the cloudy day, there is also a windproof. At noon, as long as the wind is ten minutes, or fifteen minutes, However, the air outlet should not be too large, and the time should not be too long. It is necessary to carry out the wind and moisture in a scientific and reasonable way. 9. For the Dapeng facilities damaged by external forces (such as snow), timely repair should be made. Now the temperature is so low. After the arrival of the cold season, it will be even colder, so the planters should take timely measures. If you don't understand anything or need to know, you can follow Huinong.com and you will find the answer you want.
Introduction and application of plant extracts
Plant extracts are chemical substances with biological activity extracted from plants, including nutrients, active ingredients, pigments, fragrances, acids and bases in plants.
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Cosmetic field: plant extracts can be used to prepare cosmetics, such as the use of green tea extract to prepare skin care products, the use of lavender extract to prepare perfumes, etc. The natural properties of plant extracts make them have a wide range of application prospects in cosmetics.
Food field: Plant extracts can be used to prepare food products, such as tea beverages using tea polyphenol extracts and fruit juices using anthocyanin extracts. The natural properties and biological activities of plant extracts make them have a wide range of application prospects in food.
In the field of health care products: plant extracts can be used to prepare health care products, such as the use of grape seed extract to prepare antioxidant health care products, the use of yeast extract to prepare immunity-enhancing health care products, etc. The natural properties and biological activities of plant extracts make them have a wide application prospect in health care products.
In conclusion, plant extracts have a wide range of application prospects to meet people's pursuit of natural, healthy and green lifestyles.
How do we manage the greenhouse crops in the frost disaster?