What are the precautions during the young panicle differentiation stage of rice
Rice cultivation is very common in China, and in rural areas almost every household has a certain area of paddy fields. Rice cultivation in China has a history of several thousand years. Although the cultivation techniques are relatively mature, cases of cultivation failure still occur. This is mainly because the surrounding environment was not properly controlled during the young panicle differentiation stage of rice. So what do we need to pay attention to during young panicle differentiation? Let's take a look together below!
1. Light
Light is closely related to the growth of rice, especially during the young panicle differentiation stage. Failure to ensure sufficient light will affect the differentiation of young panicles to a certain extent, or even cause it to fail. We cannot control the timing of young panicle differentiation, but we can adjust the environment. If the weather is rainy, overcast and without light, we should supplement light in time. Also, the seedlings should not be closed in too early, otherwise the field will become closed and lightless, causing young panicle differentiation to fail, and the development of branches and spikelets will also be affected, with abortion in severe cases.
2. Temperature
Each stage of rice growth has different temperature requirements. The most suitable temperature for young panicle differentiation is around 27 degrees, but because the temperature varies greatly between day and night, the temperature should be controlled at 30-35 degrees during the day, and the nighttime temperature should be at least ten degrees lower. Only in this way can young panicle differentiation be more favorable. The lowest temperature that can be tolerated during the young panicle differentiation stage must not be lower than 15 degrees. Cell division requires a higher temperature, and the development temperature of rice panicles can reach above 40 degrees. Only by ensuring suitable temperatures can the normal growth of rice be ensured.
3. Water
As everyone knows, growing rice requires a large amount of water, especially during the young panicle differentiation stage. The water demand at this stage is the greatest in the entire growth period of rice. The water demand at this period requires the field moisture content to reach 90%. If there is not enough water in the paddy field to supply growth, the development of young panicle spikelets will be hindered. However, the amount of water should not be too much either. If there is too much, it affects root respiration, affects nutrient absorption, and leads to deformed rice panicles and empty grains, affecting yield.
4. Nutrition
During the young panicle differentiation stage, many new branches and leaves grow continuously, and the nutrients required gradually increase accordingly. This stage is officially one of the peak periods of fertilizer demand for rice. Topdressing should be carried out in time to promote flower bud formation and spikelet differentiation. This is what we often call flower-promoting fertilizer. Then about a week before the heading stage, apply fertilizer again to prevent spikelet abortion and promote plant growth. This is flower-preserving fertilizer. This period is when rice absorbs nutrients fastest and, of course, consumes them fastest, so there must be enough fertilizer to ensure the nutrients needed for growth.
The young panicle differentiation stage is equivalent to our human infancy. It requires careful care, protection from harm, and ensuring the healthy growth of the baby. The principle is the same. If management work is not done well, it will have a great impact on both the yield and quality of rice. Therefore, everyone should pay attention to observing more, and solve problems when they are found, so as to better increase yield. That is all for today's introduction. If you want to learn more related information, please continue to follow us!