What to do in case of rain after cotton sowing

After sowing cotton, rainy weather occurs at the seedling stage of cotton, which will not only lead to seed emergence rate and uniformity, but also affect the growth quality of cotton seedlings, resulting in a decrease in yield. Rain after cotton sowing is a headache phenomenon, so what should I do if it rains after cotton sowing? Let's take a look at the remedies.

1. Plastic film sowing meets rain

For the planting method of plastic film mulching, the accumulated water on the film should be cleaned up in time after rain. At this time, because the plastic film sowing row is generally lower than the ridge, the accumulated water on the film will be stored on the sowing row after rain. If there is too much ponding, the membrane cannot bear the pressure, resulting in the rupture of the mulching film, a large amount of rainwater will flow into the sowing row, too much humidity under the membrane will cause cotton rot, or induce disease. There is also a point when there is ponding in the plastic film, which will affect the transparency and temperature of the plastic film. Therefore, after rainfall, it is necessary to clean up the technology on the plastic film in time, and at the same time, it is necessary to cultivate shallow hoe between the films to break the hardened soil and improve the ground temperature, which is conducive to seed germination.

2. Open field sowing in case of rain

If it is the case of open field sowing, the first thing to do after rain is to cultivate and loosen the soil, break the soil hardening condition, and help the seeds break through the soil. The depth of cultivation should also be treated differently. If the seeds are still germinating, the depth of ploughing should not exceed the sowing depth, so as not to hoe the seeds directly out of the ground or move the position of the seeds, affecting the emergence of seedlings. If it is already sprouting and taking root, it can be properly dug, but it cannot hurt the young roots, so as not to affect the growth of seedlings or cause dead seedlings.

3. According to the amount of rain

If it is a small amount of rainfall, it will not form runoff on the surface, and there is no need to break the shell yield, and the seeds can rely on themselves for normal emergence. If it is a small amount of hard, it should be distinguished according to the sowing time after rainfall. If it is sown within three days, it can be gently crushed by wooden or iron rollers with nails to break the soil hardening condition; if it is sown within 5-6 days, it can be gently crushed by wooden or iron rollers with ribs to break the soil hardening condition; and if it is sown for more than one week, it is necessary to adopt artificial seedling release method to break the soil hardening, so as not to damage the sprouts.

The above is an introduction to how to do when it rains after cotton sowing. I hope it can help you. If you want to know more about it, please pay attention to us.