Wheat picks the flag followed by the budding period, after the packaging will enter the heading and flowering period, as for how long does it take for the wheat to pick the flag to draw the full ear? In fact, this is related to the weather and temperature, if the sunny day and the temperature is above 25 degrees, basically four to five days can produce the full ear, from the full ear to the flower generally takes two to three days, if the temperature reaches 30 degrees, it may be after the heading to start flowering. After understanding these, whether you can water and spray during the flowering period is also a problem that many people are more concerned about.
You should know that wheat is very sensitive to pesticides during the flowering period, and wheat is also relatively fragile at this time. In addition, this period is also the time to determine the number of grains in the wheat panicle, the more flowers the number of grains, the higher the yield, which is why some wheat fields have no grains or fewer grains when harvesting, in fact, this has a lot to do with the management of the flowering period, so can the wheat flowering period be watered and sprayed? What should be paid attention to? We must understand the law of the flowering period, and the answer can be easily solved after understanding.
First of all, we must understand that the flowering period of wheat is only three days, of which the yellow flowers start from the middle, the first day is yellow flowers, the second day is yellow and white, and the third day is all white flowers. In fact, I also talked to you in the early stage, the best time for the second water of wheat is from the flag picking period to the flower, because this period is also the last time the wheat roots burst.
If you postpone watering to the flowering period, it is not only easy to cause pollen to absorb water, cause swelling and cracking, affect wheat pollination, reduce the seed setting rate, but also form a small moisture air mass in the field (because the wheat has grown very dense during this period, plus this year's wheat is denser than in previous years) Wheat growth is dense and impermeable, it is easy to breed diseases, especially in the later stage of scab and other diseases, so it is not recommended to water during the flowering period.
Of course, there is no absolute, if there is a drought in the flowering period, and there is water at this time, in the situation that it is necessary to water, then it is necessary to water, the premise is to avoid the full flowering period, you can water in the sporadic flowering period, or you can water in the afternoon.
In fact, the best time for wheat to be sprayed in the flowering period is when sporadic flowers are first seen, that is to say, if the scab in the field is more serious, it must be sprayed with medicine when sporadic flowers are just seen. If it is rainy, it is necessary to spray it again after flowering (that is to say, it is necessary to avoid spraying pesticides during the full flowering period, once the concentration is too high or the temperature is too high, it will also affect wheat pollination)
In addition, if the wheat is not sprayed before flowering, it has to be sprayed at the flowering period, and it is also necessary to avoid the full flowering period.
To sum up, it takes about four to five days for wheat to pick up the flag and pump the full ear, and the flowering period is only a short three days, so it is best to avoid this period for watering and spraying, after all, the wheat flowering period is the key period to determine the number of grains per panicle, and this time is also a sensitive and fragile period for wheat. If you have to water or spray during this period for various reasons, it is recommended to do it before the sporadic flowering, avoid the full flowering period, and if you can't avoid the full flowering period, you can also water or spray after the flowering. However, we must understand that watering and spraying before flowering can determine the number of grains in the wheat ear, and after flowering, it can only determine the weight of 1000 grains, so we must make flexible arrangements according to our own situation after understanding this, and we must not miss the best management period.
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