Intercalation of summer corn can increase yield, but it is necessary to master the following four key technologies. First, during the detasseling period when the tassels of maize have just been outcropped and have not yet bloomed, it is most suitable for emasculation. The effect is also best. why? Because the plants are still short at this time, the tassels are crisp and easy to pull out. If the detasseler is too late, it is easy to pull out the leaves and break the stem. It is advisable to choose sunny days for detasseling, which is generally better from 9am to 4pm. Because of the high temperature during this time, the wound is easy to heal. Second, the emasculation method Wheat cover summer corn can be taken to intervene or septal castrated, summer live corn can be 1 row to 1 row, but also l lines to 2 lines, in 1 to 2 days to expose the tassels Unplug it. In addition, when emasculating, care should be taken to remove the tassels on the inferior, weak, and worm strains in order to concentrate nutrient supply to the ear and reduce empty stalks. Increase grain weight. Third, when the number of castrated males have good reproductive performance, high field uniformity, and less pests of wheat cover summer corn, the number of castration can account for 35% to 40% of the whole field; and summer live corn, castration number It is suitable for 45% to 50% of all fields. Fourth, do not go with the blade do not remove the uppermost blade. Because the top leaves of corn plants have a great effect on the formation of grain filling and economic yield. Tests have shown that emasculation can generally increase corn production by 6.83% to 10.35%, while emasculation with 1 leaf reduces production by 2.37% to 2.79%; yielding 2 leaves reduces production by 4.49% to 6.14% and takes 3 leaves. Reduce production 10.28% to 12.45%. Therefore, when detasseling must be mastered without removing the top leaves in order to achieve the purpose of increasing production.
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