How do you grow napa cabbage from seed? If you don't pay attention to the key planting methods, you won't get any plants
Winter and autumn are the best times to plant napa cabbage seeds, but since many people are beginners and don't know how to plant them, they think growing napa cabbage from seed is very simple - completely wrong! If you don't pay attention to the key points of napa cabbage seed planting methods, you won't be able to grow them!
1. Seed treatment for planting napa cabbage seeds
We should treat the seeds in advance. Many seeds carry some pathogens, and these can directly have a fatal effect on young napa cabbage seedlings. So the first step is that we must, before planting the napa cabbage, mix the seeds with thiram wettable powder, or mix them with some iprodione wettable powder. Seeds that have been mixed will directly reduce the impact of black spot disease.
2. Temperature and humidity control for planting napa cabbage seeds
When planting, we must control the temperature and humidity in the field, because high humidity in the field makes it very easy to become infected with some diseases. At this time we should ventilate reasonably and water reasonably. When the napa cabbage has just been planted, we should water according to its growth. What we should especially avoid is the phenomenon of rain right after we finish watering, so be sure to check the weather forecast. If there is standing water, there is no need to panic; just drain the standing water smoothly.
3. Chemical control for planting napa cabbage seeds
Napa cabbage is especially prone to infection by black spot disease, so 3 to 5 days after infection, lesions will form. At this time we spray 50% iprodione together with 50% thiram, or use 64% phosethyl-Al, spraying once every 7 to 10 days. If sprayed 5 times in a row, it can reduce the invasion of black spot disease, and spraying 50 kg per sq m is most suitable. Of course, the chemicals just mentioned should be diluted 500 times with water.
4. Fertilizing for planting napa cabbage seeds
After spraying the chemicals in the field, we begin applying some chemical fertilizer. This fertilizer is mainly phosphorus fertilizer and potassium fertilizer, applied according to the growth of the napa cabbage. If the napa cabbage is growing well, then we can use a little less phosphorus fertilizer and potassium fertilizer. If it feels like the napa cabbage is not growing especially well, then we can appropriately add a little more phosphorus fertilizer and potassium fertilizer. Actually, this is not especially critical. And the amount of fertilizer is about 10 kg phosphorus fertilizer and 10 kg potassium fertilizer.
The above points are the key methods for planting napa cabbage seeds. I hope they can help you! This article was compiled from the internet.