How to manage rice heading and flowering? High-yield heading and flowering management techniques for rice

As one of the main food crops in China, rice is cultivated in many areas of China. The high yield of rice is what every grower hopes. So what are the factors that determine the high yield of rice?

Rice planting is expected to be high-yield. Among them, seed selection, seedling, transplanting, and field management are all decisive factors. In the field management, the management of heading and flowering is very important. The following are detailed management techniques for rice heading and flowering, and the growers look at it. .

As you know, rice is rice flowering stage of life is the most sensitive period of high demand for natural conditions of temperature and precipitation changes. General rice heading and flowering optimum temperature is 26 ~ 28 ℃, the low temperature limit temperature is not lower than 15 ℃, but less than 21 ℃ and 35 ℃ higher than anther dehiscence would have been affected, the low temperature will affect flowering pollination, resulting in rice empty shriveled grain. While if the continuous rainfall, may lead to anther rupture, not by the powder, resulting in empty shriveled grain.

Everyone should note that in the case of continuous low temperature and rainy weather, the following measures should be taken:

First, we must take insulation measures. In order to prevent low temperature chilling, if it encounters weather below 20 °C, it should be timely irrigated and insulated, and added with heat preservation agent to improve the heat preservation effect and reduce the empty granules caused by low temperature chilling.

Second, the root can be topdressed. Generally, it is possible to apply a 0.2% concentration of potassium dihydrogen phosphate or a 0.3% aqueous solution of superphosphate to apply phosphorus and potassium fertilizer to increase the resistance of rice to low temperature.

Third, you can release smoke bombs. At 10 o'clock in the evening, smoke bombs are released around the field to prevent low temperature attack.

Fourth, strengthen the prevention and control of pests and diseases. It is necessary to strengthen the prevention and control of rice blast, rice stem borer and other pests and diseases, and improve the resistance of rice. In short, when the rice flowering period encounters low temperature and rainy weather, various measures should be taken in time to prevent the production from being reduced.

We need to strengthen the field management during the rice heading and flowering period, because this is the best time for rice pollination. The above is a detailed management method.

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