How to deal with paddy fields to increase yield before transplanting rice seedlings? At present, it has entered the first ten days of April, and many places have begun to sow and raise early rice seedlings. In rice sowing measures, there are many management contents that need special attention, such as soil preparation, seed treatment, sowing methods, accelerating germination and strengthening seedlings, water and fertilizer management, pest control and so on. Only by mastering relevant management skills can we cultivate neat and healthy seedlings and ensure high yield, good quality and good harvest of rice.

According to the planting time, rice can be divided into early rice, middle rice and late rice. Generally speaking, early rice is usually sown from the end of March to the beginning of April or before Tomb-Sweeping Day, transplanted from the end of April to the beginning of May, and harvested in the middle and late July. The growth period is about 90- 120 days. Mid-season rice is usually sown from the beginning of April to the end of May, transplanted from the end of June to the beginning of July, and harvested in the middle and late September. The growth period is about 120- 150 days. Late rice is usually sown in the middle and late June, transplanted before autumn, and harvested in the middle of June at 5438+ 10. The growth period is about 150- 170 days. In addition, there are three-season rice in Hainan, but now there are fewer kinds, so I won't introduce them in detail.

Due to the great differences in climatic conditions in different parts of the country, the specific sowing and harvesting time is also slightly different, so it is necessary to master it flexibly in combination with local conditions. Generally speaking, rice planting can be carried out when the daily average temperature in this area is stable above 12 degrees Celsius for 3-5 consecutive days, and rice planting cannot be carried out when it is lower than 10 degrees Celsius. If the sowing temperature of rice is too low or the sowing time is too early, it will easily lead to germination, flowering, pollination, heading and fruiting, and even rotten seedlings and dead trees, thus greatly increasing the empty shell rate of rice and greatly reducing rice yield. In order to ensure the orderly emergence of seedlings, strong seedlings and reduce the harm of pests and diseases, rice generally needs to go through four treatments: drying seeds, selecting seeds, soaking seeds and accelerating germination before sowing. Let's talk about the relevant treatment methods in detail.

The purpose of drying seeds is to further reduce the water content in seeds, kill the residual germs on the surface of seeds, and promote the seeds to absorb more water faster. At the same time, it is also to break the dormancy state of seeds, improve the germination rate and germination potential, and make the rice germinate faster and more orderly after sowing. Operation method: Before sowing rice, choose a sunny day from 10 to 3 pm, and sow the seeds in the sun for 2-3 days.