The latest course of field management techniques and methods at jointing and panicle stage of rice

Rice jointing in a period of time before and after the tillering peak period, until the rice began to head, rice began to stop jointing growth, so this stage is called jointing long panicle stage. This stage is very important for rice production, which is related to the yield change of rice. The following parent farming network brings the field management technology of rice jointing and long heading stage.

1. Scientific irrigation

In rice jointing and long heading stage, the demand for water is extremely high, especially in meiosis stage, so it is necessary to ensure sufficient water in the field at jointing and long heading stage. However, in this period, it is generally a period of high temperature, when microorganisms are active, and the decomposition of organic matter is accelerated, which will lead to the rapid consumption of dissolved oxygen in the water body, which will easily lead to the accumulation of toxic substances. In addition, hypoxia will lead to the inhibition of the root growth of rice. Therefore, it is not suitable for long-term deep water irrigation. Therefore, this time period should master the correct irrigation method, in the early stage of jointing to appropriate water to dry the field, control tillering, but also conducive to pest control, and to the late stage to maintain a certain depth of water, to meet the needs of growth, and other time periods to keep the soil moist or have a layer of shallow water can be.

2. Reasonable fertilization

During the period of rapid growth of rice at jointing and long heading stage, sufficient fertility is needed to promote its smooth growth. Generally, fertilization during this period can be divided into flower promotion fertilizer and flower protection fertilizer. Under normal circumstances, the flower promotion fertilizer should be applied one month before heading, while the maintenance cost should be carried out half a month before heading, but it still depends on the growth of rice, and it is not allowed to apply fertilizer blindly. If the rice growth is weak in the early stage and the leaf color is yellow, then appropriate urea can be applied as flower promotion fertilizer to increase the number of ears. If the rice growth is good and the leaf color is green, there is no need to apply flower promotion fertilizer, otherwise it will cause greediness and late ripening and lodging. As long as the flower fertilizer grows normally in the field, it needs to be applied, generally potassium sulfate and urea are applied to meet the growth needs of young ears.

3. Field management

During this period, pest control is essential. The diseases of rice at jointing and long heading stage are mainly rice blast, bacterial blight, stripe blight, rice false smut, etc. These diseases can be controlled by purchasing corresponding pesticides from agricultural materials supermarket. The main pests are borers, planthoppers, etc., which can be sprayed with general insecticides. In addition to pests and diseases, there are also rodents and various weeds. Weeds grow vigorously at jointing and heading stage, which will occupy the nutrients for rice growth and make rice grow weakly. In addition, increasing the field density is easy to cause pests and diseases. Rodenticide baits should be put in time to prevent and control rat pests found at jointing and heading stage, otherwise serious rat pests will lead to no harvest.

The above is the field management technology of rice jointing and long heading stage brought by the parent farming network. I hope it can help you. If you want to know more about rice, please pay attention to the parent farming network.