Planting lettuce, mastering these methods to easily improve quality
Lettuce is a vegetable that is often seen in the market. It is a vegetable variety introduced from abroad. It has a strong fragrance, contains calcium, iron, selenium and other essential elements for the human body, and has high nutritional value. It is the top product in vegetables , Known as the "Phoenix Tail", so what methods are used to grow lettuce?
1. The adaptability of field preparation, lettuce, and rape is better, and there is no particularly strict requirement for soil selection. Before planting, apply basal fertilizer, and then plow. It must be deeper, so that the lettuce can grow better.
2. Before sowing seeds, water the soil to a certain degree of moisture, then spread the seeds, and then cover with a layer of soil. If it is planted in winter, you can cover it with another layer of film to sprout faster. Remove the film when the seedlings grow out.
3. Planting lettuce grows very fast. Generally speaking, it can be planted in about seven days after germination. Be sure to pay attention to a reasonable distance when setting the value. The distance between the two plants is about 20 cm, and then the distance between the two rows is 15 cm.
Fourth, the management of lettuce grows faster and has a higher demand for nutrients. There are three top dressings in the later period. When there are five leaves, chase the fertilizer for the first time, when the leaves grow to 20cm, chase the fertilizer for the second time, and chase the fertilizer for the last time before harvesting.
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Amino acid are organic acids containing amino groups, which are the basic units of proteins. There are more than 20 kinds of amino acids that constitute proteins, which are often divided into essential amino acids and non-essential amino acids according to their nutritional needs for pigs and chickens. In pigs, chickens can not be synthesized, or can be synthesized, but the speed and quantity of synthesis can not meet its normal growth needs, so must be supplied by the outside world of amino acids, called essential amino acids. So far, the essential amino acids that have been widely used in the breeding industry are methionine and lysine
Efficacy and function of amino acid for Poultry and veterinary use:
First, Feed Amino Acid improve immunity
Amino acids are important nutrients in animals, which can improve the immunity of animals
Second, promote growth and development
Amino acids also have a positive effect on the growth and development of domesticated animals
Third, improve the efficiency of breeding
There is a certain relationship between animal amino acid intake and feed conversion rate. Reasonable strengthening of amino acid supply can improve feed utilization rate, reduce pollutant discharge and improve aquaculture efficiency
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