The main tasks in the middle and late stages of corn growth are to improve the seed setting rate, prevent premature aging of leaves, prolong the functional period of leaves, preserve grain number and increase grain weight.
1. Artificially assisted pollination. We must pay close attention to the pollination of corn and take response measures in case of special weather. High-yield fields can carry out artificial castration and assisted pollination. In the event of continuous rain or extreme high temperatures during flowering and pollination of Daejeon corn, artificial remedy measures such as pollination should also be taken to effectively increase the seed setting rate and increase the number of grains per panicle.
2. Supplemental application of fertilizer. The level of corn yield depends on the length of the functional period of the late leaves. It is very important to prevent the premature aging of defertilizer by promptly supplementing and recovering available nitrogen fertilizer. Can be combined with water or rake before rain to increase fertilizer efficiency.
3. Pay attention to drought prevention. In the flowering and grain filling stage, Daejeon’s corn was watered in case of drought, and the high-yield field was exposed to water.
4. Properly late receipt. Harvested when the corn grain milk line disappears completely. Typical plots are harvested from the end of September to the beginning of October.
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