Soon to the frost season, the temperature in many areas in the north is constantly falling, even the temperature in the south is not so high, but regardless of the south or the north, this year there are many growers who plant relatively late, and the growth is not too good. Recently, many friends have asked: When can the cabbage not be watered? When will it be harvested? How can I make cabbage that has not yet been filled with a heart? Here are the answers to your questions in this regard.
When to stop watering the cabbage
Those who have planted vegetables know that no matter what vegetables are inseparable from water in the growth, especially leafy vegetables like Chinese cabbage, they can not lack water, and the soil should be watered in time during the growth period and the core period, but there is a time when it cannot be watered casually, that is, it is almost time to harvest. Because if you water too much before harvesting, the water content of cabbage will be large, and if the water is too large to be difficult to preserve after harvesting, it will be easy to rot. Why do many growers have to put the cabbage in the sun for a few days before storing it after harvesting? The reason is to reduce the moisture of the cabbage leaves. In general, cabbage cannot be watered about 10 days before harvest.
When to harvest
Cabbage due to different climates, planting time is different in the morning and evening, harvest time is also very different, according to the season, the cold areas in the northeast and northwest, about before and after the frost harvest, North China provinces and regions around the harvest before and after the light snow, the south can be harvested according to the growth of cabbage, but this is only an approximate time, but also according to the local temperature changes to decide. Chinese cabbage can generally tolerate low temperatures of minus 5 degrees, that is, as long as it does not exceed minus 5 degrees, you don't need to harvest, wait a little longer, if it is above minus 5 degrees, it will be harvested, so as not to be frost damaged.
Cabbage is not tied up
In principle, Chinese cabbage generally does not need to be bundled, but because some cabbage is not good, after encountering low temperature and frost, the leaves are easy to take off, and some growers will bundle the cabbage, one to help wrap the heart, protect the heart leaves, and the other to avoid the external leaves from falling. But the time to bundle cabbage can not be too early, too early will affect the photosynthesis of leaves, is not conducive to growth, generally in the cabbage harvest about half a month before the start of bundling is the best time. If it is a normal cabbage, there is actually no need to tie it.
What to do if the temperature is low and the cabbage is not heartfelt
This year, due to the weather, the cabbage planted in many places is not good, especially in the northern region, the temperature is dropping day by day, but the cabbage has just begun to wrap the heart, and some have not yet wrapped the heart. Although cabbage is very cold-tolerant, it grows very slowly when the temperature is low. So, there are only two ways to make the cabbage wrap a little faster and the growth period a little longer.
1. Pay close attention to fast-acting fertilizers, especially nitrogen fertilizers, such as ammonium bicarbonate, urea, etc., which can be diluted 300 times with water for irrigation or flushing to promote the rapid growth of cabbage heart leaves.
2. For those whose temperature has dropped and the family planting area is small, in order to prolong the growth of cabbage and let it wrap its core, you can buckle a small arch shed for cabbage to increase its growth temperature and make it grow faster. However, at the same time as the arch shed, fertilizer and water management must keep up in order to make it grow fast and wrap fast.
The above are the key points of the later management of Chinese cabbage, and you can manage it according to the growth of Chinese cabbage and their actual situation. If you have any questions, please leave a message.