Leaf beet can also be called thick-skinned vegetables, leeks, sea cabbage, and kumquat. Because it is widely cultivated in rural areas, it is a popular vegetable. The vegetables have the functions of clearing away heat and detoxifying, stopping siltation, removing head wind, and benefiting the five internal organs. It can be viewed and eaten. It is mainly eaten with petiole. It can be cooked, fried or salted. Then let's take a look at the leafless beet soilless cultivation technique with Xiaobian.
(1) Biological characteristics
Leaf beet roots are developed, leaves are oval or long oval, prefer warm and humid climate, the optimum growth temperature is 15 ~ 25 ° C, strong adaptability, can grow in all kinds of soil, but high requirements for water and fertilizer Happy irrigation and fertile soil.
(2) Cultivation season and variety selection
1. Cultivation season
Leaf beet has strong adaptability. In the open field cultivation, it can be used in other seasons except for severe cold winter. Generally, it is mainly cultivated in spring and autumn. The cultivation in solar greenhouse is mainly in spring, autumn and winter, and the summer is hot and vegetables. There are many varieties, so it is a bit unpopular when planting leaf beets in the summer. .
2. Variety selection
According to the color of the leaf beet of leaf beet, it can be divided into three categories: white stem, green stem and red stem. The red stem beet is most popular.
(3) Cultivation techniques
There are many soilless cultivation methods suitable for leaf beet, such as deep liquid flow technology, nutrient liquid membrane technology and matrix trough culture technology. Next, the small series introduces two cultivation techniques: nutrient liquid membrane technology and matrix trough culture technology. .
1. Nutrient liquid membrane technology
(1) Seedling and colonization
The leaf beet must be soaked and germinated before sowing. First soak it in warm water at 50-55 ° C for 10 minutes, then continue to soak for 12 hours with cold water, remove it and dry it to place it under suitable conditions. After budding, the seeds are planted in a pre-prepared plastic nursery containing rock wool, each 1-2 capsules, about 3-4 days will be seedlings, and the seedlings have 4 to 5 true leaves. The substrate was transplanted into a colonization cup of the nutrient liquid membrane system, and then the anchoring cup was placed in a colonization hole of about 15 cm apart on the planting plate.
(2) Nutrient fluid management
1 nutrient solution formula and concentration adjustment
The seedling stage can be watered from 1/3 to 1/2 doses of the leafy A formula of South China Agricultural University. After the planting is slowed down, the nutrient solution is restored to a dose of the standard formula, and the leaf beet enters the harvesting period to enter the nutrient solution. The concentration continues to increase to 1.2 to 1.5 doses of the standard formulation until the end of harvesting. In order to increase the yield of leaf beet, the concentration of nutrient solution can be increased to 100 mg/L based on the standard formula after the seedling is slowed down.
2 pH adjustment
The sugar beet is salt-tolerant, and the pH of the nutrient solution can be adjusted to between 6.0 and 7.8.
3 liquid supply method
Intermittent liquid supply is used to control the same nutrient liquid membrane technology.
(3) Harvesting
The leaves can be harvested for the first time after 20 to 30 days of planting. According to the season and growth conditions, the number of leaves should be determined. When harvesting, 3 to 5 pieces of leaves per plant should be removed, leaving 4 to 5 pieces to continue to grow. It can be harvested at one time and served with its tender plants.
2. Matrix trough culture
(1) Cultivation tank preparation
The cultivation trough is made of red brick, with a groove width of 72cm, a depth of 15cm and a length of 6.0m. The inside of the cultivation tank is covered with a 0.15mm thick black plastic film, and then the matrix is ​​filled. The matrix composition and ratio are: sand: slag =1:2.
(2) Seedling and colonization
The seedling substrate can be made of vermiculite, sand, slag, grass charcoal, etc. The seedling container is made of plastic crucible with a diameter of 8 to 10 cm, soaking seeds, germination and sowing, and seedling management together with the aforementioned nutrient liquid film technology. When the leaf beet seedlings have 4 to 5 true leaves, the root matrix is ​​removed and planted in the matrix of the cultivation tank, and the row spacing is 20 cm×25 cm.
(3) Nutrient fluid management
1 nutrient solution formula and concentration adjustment
The leafy vegetable formula of South China Agricultural University is still used. Only the water is poured before the seedling is slowed down, and the nutrient solution is started after the seedling is slowed down. The concentration of the nutrient solution is 1/2 dose of the standard formula. After about ten days, increase to one dose of the standard formula, and the harvesting period is increased to 1.5 to 1.8 doses of the standard formula.
2 pH adjustment
Same as the aforementioned nutrient liquid membrane technology.
3 liquid supply method
In the process of harvesting, the method of artificial liquid supply is adopted. In spring and autumn, the nutrient solution can be watered once every 1-2 days, and the other time is only watered. For winter cultivation, the nutrition is watered every 2-3 days. liquid.
(4) Harvesting
Same as the aforementioned nutrient liquid membrane technology.
Food additives refer to chemically synthesized or natural substances added to food in order to improve the quality, color, aroma and taste of food, as well as for the needs of antiseptic and processing technology. Due to the rapid development of the food industry, food additives have become an important part of the modern food industry, and have become an important driving force for technological progress and technological innovation in the food industry. In the use of food additives, in addition to ensuring that they play their due functions and roles, the most important thing is to ensure the safety and hygiene of food.
Our company provides chemical food additives, natural food additives, etc.
Food Additives,Beverage Additives,Malic Acid Powder,Natural Food Additives
XI AN RHINE BIOLOGICAL TECHNOLOGY CO.,LTD , https://www.rhinebiotech.com