Traditional Culture Encyclopedia - Weather forecast - When will cotton be planted? When will cotton be planted?

When will cotton be planted? When will cotton be planted?

Due to the different weather and climate in different regions, the planting time of cotton is also different. Generally speaking, cotton planting time is around May every year.

Cotton planting should be decided according to the local temperature, and seeds with high purity, full seeds, maturity and high germination rate should be selected when sowing; Before sowing, the seeds should be dried in the sun for 2-3 days to improve the germination potential and growth potential, and pesticides, fungicides and 500 times new high-fat film should be mixed into the seeds to effectively control underground pests and seedling diseases.

When the ground temperature of 5cm stably passes 16 degrees or the ground temperature of 20cm reaches 16.5 degrees, sowing can be started. When sowing, we should pay attention to watching the ground temperature forecast of cotton sowing period by the local meteorological station to avoid late frost.

At present, due to the adoption of insect-resistant cotton, the growth period is generally shortened, and the medium-early maturity variety is adopted, which is generally about 125 days. The peaches before harvest tend to increase year by year, which easily leads to premature aging of peaches and aggravates boll rot. Therefore, it is suggested to advocate proper late sowing in a suitable period, which can also alleviate the disease. Early sowing, low temperature, easy to rot seeds and buds, serious diseases, leading to lack of seedlings and broken ridges; Sowing too late and high temperature are easy to form tall seedlings, which is not conducive to cultivating strong seedlings.

In spring, the ground temperature in saline-alkali land rises slowly and is low, and the sowing date of cotton is later than that in general cotton fields. It is necessary to master flexibly according to the weather and soil moisture (when the soil moisture is poor, it is best to plant it a few days later, and also to build moisture to ensure sufficient planting moisture).