1, topdressing granular fertilizer

In the early stage, maize is not top-dressing, and when there are defertilizers in the later period, grain fertilizer should be top-dressed to promote the increase of grain weight and yield. However, to grasp the principle of early application and appropriate amount, generally apply 8-10 kg of ammonium bicarbonate per acre. During this period, it is not necessary to top up urea because the effect of urea fertilizer is slow and the effect of increasing production is not significant.

2, drought prevention and lodging

The flowering period is the peak period of corn water demand. If water shortage occurs during this period, it will result in bald tip and small grains, which will affect the formation of grain and grouting, resulting in reduced production. Therefore, the drought should be timely irrigation of farmland to meet the water demand of corn grouting. At the later stage of corn growth, the growth ability of the roots is gradually weakened. Therefore, it is also necessary to pay attention to drainage in low-lying plots and places with excessive rainfall. In the later period, we should also pay attention to cultivating soil to prevent lodging.

3, control pests and diseases

Strengthen the prevention and control of corn borers and armyworm pests in the late corn period, which is an important measure for ensuring production and increasing income. Can use 50% phoxim 1000 times spray control, or with 80% dichlorvos 200 times in the pollination of corn after each plant drops 3 ml in the top filaments. Http://

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