Summer is hot and rainy, and many farmers are worried about whether it will affect corn pollination. I believe many people should know the answer, and that is sure to have an impact. If the summer corn is just in the sky during the pollination (most areas), if the temperature exceeds 35 degrees, the pollination of the corn in this state will be affected, so how should we remedy it? Let's take a look.
Three conditions affecting corn pollination
Let me first tell you how to pollinate corn. In the popular way, the corn powder is on the ear of the plant. When it reaches the pollination period, it will fall automatically, and then some will fall on the ear of corn. Finally, it grew into a corn cob. In the process, if you encounter high temperature weather, there are three kinds of effects:
1. The photosynthesis of corn plants is relatively weak. When the temperature is too high, the corn leaves themselves will be closed to protect the water, and the stomata will be closed. Under such circumstances, the respiration is also relatively weak, which is not conducive to normal photosynthesis, resulting in blocked corn growth. .
2, when the temperature is higher than 35 degrees (or higher), it is not conducive to the formation of pollen, such as tassel can not flower, resulting in loose powder, or the development of the ear is blocked, abnormal, delaying the silking of the ear, this situation Under the condition of poor pollination, it is either not strong or there are granules.
3. When the high temperature continues to be too long, the pollination period may be shortened. In this case, the situation of not sticking will increase, and the final yield will be quite large.
Three practices of corn pollination remedy
When high temperature weather occurs during corn pollination, what should we do? For particularly severe plots, manual aided pollination measures can be taken. There are two approaches:
1. Manually collect pollen, then use it in a container and sprinkle it on the unpollinated female ear. However, it is necessary to pay attention to the operation. First, lightly sprinkle. Secondly, choose morning, avoid rainy days, and windless weather. Artificial pollination. However, the intensity of work is very large. It is better to say that if it is a farm, a cooperative, or a large farmer, it is not suitable. The labor is too heavy.
2, directly shake the corn plants, let the pollen fall, for pollination, can use the rope, but also pay attention, the amplitude of the shaking should not be too large, and then like the above, choose the morning, no wind and no rain.
3. In addition, some friends also responded that when the temperature in the field is too high, the problem of the field can be reduced by means of irrigation and cooling. This method can also be tried, but also relieve some of the drought, but also Considering the things that are easy to fall.
Finally, please remind us that if it is in the area under high temperature (and planting summer corn), wait until the corn is in the pollination period, pay attention to the field to observe more, if there is a bad pollination situation, choose countermeasures in time to avoid Caused a reduction in production. I hope that the contents of Xiaobian can help the majority of corn growers.
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