Management methods of planting green onions in spring

Spring onions are one of the more common seasonings in our daily life, which generally include green onions, small chives, green onions and so on. Today, we talk about the key points of the cultivation techniques of green onions. Many farmers like to plant green onions because they are easy to manage and have high yields. Let's study together.

1. It is suggested to select the species with high yield, bolting resistance, strong disease resistance and excellent quality.

two。 Key points of raising seedlings in spring, it is best to carry out raising seedlings in a small plastic greenhouse or greenhouse, or at least buckle agricultural plastic film on the border. The seeds of green onions are small and shallow. And the spring wind is relatively strong, if there is no safeguard measures, underground water is very easy to volatilize, easy to lack of water in the seedling period, resulting in seedling emergence is not very good. In addition, hydrating and moisturizing before seedling emergence is very easy to cause * control surface hardening and harm seedling arch *, which also causes seedling emergence is not very good. Therefore, it is suggested that it is best to raise seedlings in protected areas.

3. Cultivation techniques are guaranteed to return to green water in the middle and last ten days of April according to climate, which must have been watered. Around the middle and last ten days of April, when the seedling height is 15cm, the interseedling is carried out, and the vegetable and fruit Zhuangcauling is sprayed after the seedling to increase the yield. if the seedlings show light green or the leaves have yellow tips, you can pay for chemical fertilizers such as urea solution and compound fertilizer in installations. it is appropriate to apply fertilizer 2-3 times. Pay attention to the selection of green onions planted in small and medium-sized trenches, be sure to cultivate * 1-twice and spray new high-fat film, which can improve the 10cm of onion roots.

4. General pest control 4.1 Welsh onion soft rot is caused by bacteria, high temperature, high temperature, mechanical equipment injury, insect mouth injury is very easy to cause the disease. The disease is caused by the lodging of green onions on the ground, which is very easy to pull up, rotten at the bottom of the stem, and has a foul smell.

4.2The length of the nymph of onion thistle is 1.2-1.4mm, which damages the heart leaves and tender leaves of onions. Beneficial onion thrips are produced at 25 ℃ and air humidity below 60%.

5. In scientific research, the picking period of green onions varies according to the planting mode, climatic conditions, market demand and the level of growth and development. For example, before the production of green onions reached its peak, because of the urgent shortage of the sales market and the high price, it could be obtained in advance. Although the early production suffered some harm, the economic benefit was greatly improved. If it is sold as fresh onions and taken separately with leaves and pseudostems, the yield of green onions is at its peak when the growth and development of tubular leaves reaches its peak, and it is also the right time to get it. To sum up, that is to say, the key points of the cultivation techniques of green onions, in what season do we plant green onions? What must be paid attention to? Many message boards leave messages for everyone to learn and communicate together.