What to pay attention to when fertilizing during onion growth
Answer: About 30 days after the onion planted in autumn returns to green, it will enter the peak leaf growth period, and the amount of fertilizer required will increase. Apply 15-20 kg of ammonium sulfate per mu. 50 to 60 days after turning green, the bulbs begin to swell, which is also a critical period for top dressing. Add 20 to 25 kg of ammonium sulfate per acre with appropriate amount of potassium fertilizer, or irrigate thin manure with water. During the peak period of bulb swelling, fertilize appropriately as needed. For mid- and late-maturing varieties, when the bulb is the size of a walnut, ammonium sulfate can be top-dressed along the water, 15-25 kg per mu to ensure the bulb continues to expand. Spring onions were top-dressed after slow seedling, leaf growth period, bulb expansion period and bulb expansion period. Disclaimer: Some articles on this website are transferred from the Internet. If the legal rights of a third party are involved, please inform this website for processing. phone Amino acid additives are used in feed to balance or supplement a particular production purpose of the required nutrients. The main amino acids added in the feed are: lysine, tryptophan, methionine, threonine these limiting amino acids. Amino acids are the basic building blocks of proteins. The essence of protein nutrition is amino acid nutrition. The core of amino acid nutrition is the balance between amino acids.
The balance of amino acids in natural feed is very poor. Almost all of them are not balanced. The animal body in the limited feed can not synthesize themselves.
They can only rely on eating intake of amino acids. The amino acid content of natural feed is very different, each is not the same, because of different kinds, different ratio of natural feed composed of full price compound feed, although try to mix according to the principle of amino acid balance, but their various amino acid content and the proportion between amino acid is still variable, various. Therefore, amino acid additives are needed to balance or supplement the requirements for a particular production purpose.
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