Planting method of green onion

China's most famous scallion can be said to be scallion in Northeast China. One of the important factors is that scallion is a relatively heavy taste food for Northeast people. They like to eat raw scallion and drink in large bowls. Moreover, the technology of planting scallion in Northeast China is also very perfect. The scallion planted is big, white and tender. So today we will take a look at the planting technology of scallion.

1. Select improved varieties

There are many varieties of scallion, and scallion is very useful to the environment. Basically, any seed can grow in any place, but it is related to its yield and quality. Therefore, before planting, we must choose varieties suitable for local climate planting. We can first investigate the planting situation of local scallion, select varieties with high quality and high yield and good market conditions for planting. Secondly, we can plant multiple varieties in time to check the economic benefits of planting. Then choose the best.

2. Soil preparation and fertilization

Scallion planting land requirements are not high, generally as long as the light is sufficient, and close to the water source, convenient irrigation, soil organic matter content of more rich plots can be planted. When preparing the soil, it is necessary to dig at least 30 cm deep to clean up impurities in the soil, pest residues, weed roots, etc., so that later management will be simpler. Finally, the soil block will be broken as much as possible, and then raked flat, at the same time according to the width of about one meter to one meter and five furrows can wait for planting.

3. Scientific planting

There are three main ways to plant scallion, namely planting propagation, plant division propagation and bulb propagation. The suitable planting time is generally from May to June every year, and then trenching or strip planting is carried out according to the interval of 30 cm between each row. The interval between each plant of strip planting is about 5 to 8 cm. Before planting, the planting ground must be thoroughly watered, so that the survival rate can be increased by at least 15%.

4. Fertilization techniques

The quality of scallion was mainly determined according to the fertility of the planting area and the growth of scallion. Generally, the first fertilization was carried out after the beginning of autumn. According to the normal fertilization situation, about 2,000 kilograms of soil fertilizer was needed per mu, or 200 kilograms of cake fertilizer and 20 kilograms of urea were used. And wait until after the summer for the second topdressing, this fertilization needs about 15 kilograms of urea can be. Finally, it depends on the growth of scallion. If the branches and leaves of scallion are relatively thin, and there are mixed inverted hooks, then we still need to apply appropriate amount of potassium fertilizer. And add fertilizer in each growth extreme of scallion, and supplement the nutrients needed for the growth of scallion.

5. Field management

Five or six days after planting, there will be no emergence, but the temperature in summer is relatively high, and the rainfall is also relatively large, so we should be prepared for waterlogging prevention and drainage, and at the same time, we should carry out cultivation in time after rain to avoid hardening of the land. The root system of scallion is relatively weak, so the ten degrees in the planting field should be maintained at least at about 75%. In the case of not particularly dry weather, there is basically no need for excessive watering. It is only necessary to strengthen the management of soil permeability in the field and weeding.

6, pest control

The most common diseases and insect pests of scallion are purple spot, onion rust, soft rot, thrips, leaf miner and moth pests. These three common diseases are basically caused by excessive humidity in the field, coupled with relatively high temperature, which causes the production of fungi in the field, thus infecting the whole plant of scallion and causing disease. We can generally use chlorothalonil, manganese zinc solution and killing to control them. At the same time, we should strengthen the water management and temperature regulation in the field. The pests that harm the growth of scallion can be sprayed with imidacloprid, abamectin and emamectin.