Detailed explanation of the fattening skills of leek in "lazy vegetable"

Leek is a kind of vegetable with strong vitality, rapid growth and can be harvested many times, which is also called lazy vegetable. In the process of planting leek, you don't need a lot of fertilizer, and you can survive even in a barren environment, but the leaves are relatively small and not as generous as those bought outside. In order to achieve high yield of leek, usually can not do without the use of fertilizer, let's take a look at the specific fertilizer skills.

1. Skills of applying fertilizer to Chinese chives

1. Apply sufficient base fertilizer

Leek is a perennial vegetable, so in order to lay a high yield foundation, we must apply sufficient base fertilizer before sowing, but the fertilizer must be fermented well, otherwise it is easy to cause diseases and insect pests.

The demand and consumption of fertilizer in the leek seedling stage are not high, and the absorption capacity of fertilizer in the leek root system is not good at this stage, so it is best to apply some quick-acting chemical fertilizer at the same time to speed up the root growth.

When the leek grows to about 20 centimeters, it can be planted, and enough organic fertilizer should be applied when it is planted. After the fertilizer is sprinkled into the soil, it should be turned deeply and mixed evenly. After leveling and making the bed, it can be planted. When the leek is ripe and ready to be picked, it will be fertilized again.

2. Skillful application of plant ash

Usually, when planting leek, we can skillfully apply some plant ash, especially in the growth stage of leek, the application of some plant ash can more quickly promote the rooting and tillering of leek, plant ash is a water-soluble quick-acting potash fertilizer, the effect of increasing production is more obvious.

In addition, leek planted in greenhouse is more prone to Botrytis cinerea, and the application of plant ash can reduce the incidence of Botrytis cinerea. There are vegetable farmers who used too much ammonium sulfate when topdressing, and long-term use of ammonium sulfate will acidify the soil, resulting in yellowing and death of leeks, but plant ash can neutralize the pH of the soil and let leeks grow normally.

3. Topdressing in time

After the leek is planted, it will slowly enter autumn, and the temperature in autumn is more suitable for the growth of leek, and it is also a critical period for water and fertilizer management, so we should apply fertilizer in time and maintain the supply of nutrients.

The key to overwintering leeks usually requires topdressing two or three times, usually once in early September and late October, each time about 15 to 20 kilograms of ammonium sulfate per mu. About 3 days after the leek harvest, the new leaves will begin to grow slowly, and then we can apply ammonium sulfate in combination with watering. Water and fertilize in time about two to three days after harvest.

II. Key points for harvesting leek

Although leek is harvested by stubble, its harvest interval must be paid attention to, generally not less than one month. If the interval is too short, it is tantamount to killing the goose that lays the golden eggs. And the last crop of leeks in autumn, that is, 20 days before the frost, should stop harvesting leeks to prepare for their winter dormancy.