The heart nourishing vegetable has strong adaptability, and it is extremely resistant to high temperature and cold. The temperature of - 30 ℃ can survive the winter safely. It can grow at 5 ℃ without selecting soil. It can be planted all over the country, and it is easy to live and manage.
Heart nourishing vegetable is a kind of health food, which can calm the heart and nourish the liver, nourish yin and activate blood circulation, and has certain curative effect on palpitation, hypertension and other diseases. So he has a name for heart saving grass.
The requirements of heart vegetables on soil are not high. All the soil that can grow common crops can be planted, especially in the neutral sand soil with good drainage. However, the requirement of water content in the soil is very high. If the water content in the soil can be maintained at 70-80%, it is the most suitable for the growth of heart vegetables. Therefore, if you use flowerpots, you'd better not sun them directly to prevent water loss too fast. Generally, the heart nourishing vegetables are planted with seedlings of eight centimeters long, five centimeters in the soil and three centimeters above the ground. Before transplanting, a section should be made for the heart nourishing vegetables to help absorb the water and fertilizer in the soil. It's best to keep the temperature between 25 and 28 degrees, and it's best to keep it around 12 degrees at night.
It has strong adaptability, disease and insect resistance, easy to grow and easy to manage. There are two ways of raising heart vegetable: seed or cutting, but cutting is usually used for propagation. The sandy loam with loose and fertile soil and a certain degree of wetness is the most favorable for growth, and organic fertilizer should be applied as the base fertilizer.
Generally, seeds are sown in Beijing, in the middle of may in the open field, and in the solar greenhouse all year round. Cutting in the middle of April in the open field, the survival rate can reach 95%. According to the row spacing of 30 cm, plant spacing of 12-15 cm, flat border star planting.
The cultivation and management of heart keeping vegetable is simple. When the base fertilizer is sufficient, it can not be topdressing. When the base fertilizer is not applied, it can topdressing 5 kg of urea (or ammonium sulfate) every 2 times of harvest. The watering is determined according to the soil moisture content to avoid over wetting and over drying. In the growth process of heart nourishing vegetable, there is basically no disease and insect infestation, so it does not need pesticides. It is a natural pollution-free green food.
The harvesting period is from May to October, in which 2-3 shoots of tender leaves can be picked every month during the vigorous growth period from June to September. Solar greenhouse can grow and harvest year by year; the edible part of heart vegetables is tender leaves and stems, with short harvest period, high yield and high income from planting.
The leaves and young shoots of heart nourishing vegetables are kneaded and dried to form tea. The color, fragrance and taste of the tea water are good. After drinking, it can highly inhibit insomnia, palpitation and boredom. It is better to drink it with sugar. Besides lowering blood pressure, it can also relieve drunk headache. Especially for the elderly, it is good for health and longevity.
