Field Management techniques for jointing and long panicle stage of Rice

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

1. Scientific irrigation

There is a great demand for water at the jointing and long panicle stage of rice, especially at the meiotic stage, so it is necessary to ensure sufficient water in the field at the jointing and panicle stage. But in this period, it is usually 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 water, which can easily lead to the accumulation of toxic substances and hypoxia, which leads to the inhibition of rice root growth. therefore, it is not suitable to carry out deep water irrigation for a long time. Therefore, in this period of time, we should master the correct irrigation method, properly release water to dry the field and control tillering in the early stage of jointing, which is also beneficial to the control of diseases and insect pests, while in the later stage, it is necessary to maintain a certain water depth to meet the needs of growth. at other times, keep the soil moist or have a layer of shallow water.

2. Rational fertilization

In the period of rapid growth of rice at jointing and panicle stage, sufficient fertility is needed to promote its smooth growth. generally, fertilization during this period can be divided into flower-promoting fertilizer and flower-protecting fertilizer. In general, flower-promoting fertilizer is applied one month before heading, while the guarantee cost is carried out half a month before heading, but it still depends on the growth of rice and should not be applied blindly. If the growth of rice is weak and the leaf color is yellow in the early stage, an appropriate amount of urea can be applied as flower-promoting fertilizer, which is an increase in the number of panicles. If the growth is good and the leaf color is green, there is no need to apply flower-promoting fertilizer, otherwise it will cause greedy green late ripening and lodging. As long as the flower protection fertilizer is more normal in the field, it needs to be applied, generally applying potassium sulfate and urea to meet the needs of young panicle growth.

3. Field management

During this period, the prevention and control of diseases and insect pests are essential. The main diseases of rice at jointing and panicle stage are rice blast, bacterial blight, stripe blight, rice false smut and so on. The main insect pests are borer and planthopper, which can be sprayed with general insecticides. in addition, in addition to diseases and insect pests, there are also rat pests and all kinds of weeds, which are also exuberant in the jointing and panicle stage, which will seize the nutrients of rice growth and make rice growth weak. in addition, increase the field density, easy to cause diseases and insect pests. When rodent damage is found in jointing and long panicle stage, rodent poison bait should be put in time to prevent and control rodent damage, otherwise serious rodent damage will lead to no harvest.

The above is the rice jointing and panicle stage field management technology brought by the pro-agricultural network. I hope it can help you. If you want to know more about rice, please pay attention to the pro-agricultural network.