The first is shallow water: it should not be too large. At low temperatures, the vegetables in the shed evaporate slowly and the water demand is reduced accordingly. Therefore, the watering amount should be small and the interval should be longer. Avoid flooding with large water. It should be watered or sprayed to avoid it. Low temperature and high humidity lead to vegetable roots. In the first two days after watering, the humidity in the shed is likely to increase. Reasonable ventilation and cooling should be paid attention to prevent induced diseases. Ventilation is generally appropriate at high noon temperatures.

The second is the appropriate watering time: winter shed vegetable watering should be arranged around noon, preferably after 10 am before 3 pm, the shed temperature during this period is relatively high, the side effects after watering are minimal. Avoid watering in the morning and evening to prevent frost damage to vegetables. Watering should use well water as much as possible, because the temperature of the well water is high, which can reduce the physiological stimulation of vegetables.

The third is flexible watering depending on the weather: according to the weather conditions, master the principle of "watering properly on sunny days, less or no watering on cloudy days, and no watering on snowy days". When the weather changes from sunny to overcast, the amount of water should gradually decrease, and the interval is appropriately lengthened; when it changes from overcast to sunny, the amount of water changes from small to large, and the interval time changes from long to short.

The fourth is to focus on watering: the temperature of different parts of the greenhouse varies widely, and the amount of watering should be different. In the south of the greenhouse and near the heat sources such as stoves and flues, soil moisture and evaporation are large, and the amount of watering can be appropriately large; the temperature on the east and west sides and the north of the greenhouse are relatively low, and the sunshine time is short, and the amount of watering should be appropriately small some.

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Nutrient supplements

What is Nutrient supplements?

Nutritional supplements are preparations used to supplement nutrients that may be lacking in the body's daily diet. These formulations may be single or a combination of multiple nutrients, including but not limited to the following ingredients:
- Protein (e.g. protein powder)
- Fish oil (contains omega-3 fatty acids such as DHA)
- Various vitamins (such as vitamin A, B vitamins, vitamin C, vitamin D, vitamin E, etc.)
- Minerals (e.g. calcium, iron, zinc, selenium, etc.)
- Dietary fiber
- Other specific nutrients, such as Amino Acids, enzymes, probiotics, plant extracts, etc
The purpose of nutritional supplements is to meet the nutritional deficiencies that individuals may have due to special needs, dietary habits, digestive and absorption problems, health conditions (such as disease, pregnancy, aging, etc.) or other reasons. They are usually available in the form of tablets, capsules, oral liquids, powders, etc.
When choosing a nutritional supplement, one should consider an individual's physical condition, diet, and possible side effects. Although nutritional supplements can provide additional nutrients, it does not mean that they are a substitute for a balanced diet. The best strategy is usually to get most of your nutrients through a varied diet and use nutritional supplements when necessary under the guidance of a medical or professional. In addition, excessive consumption of certain nutritional supplements may also pose health risks, so it is recommended to consult a professional before use.

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Xi'an Day Natural Inc. , https://www.dayqc.com