Do a good job in the field management of corn growth

At present, corn has entered milk filling ripening period, and field management at this time is post-management. Its fertility characteristics are centered on reproductive growth, and organic matter is mainly supplied to the growth and development of the ear. In order to ensure high yield, stable production, good quality and high economic benefits, the management should be strengthened in the following aspects:

First, we must timely irrigation and drainage to maintain the larger green leaf area of ​​corn. Maize is a crop that requires more water and is not tolerant to waterlogging. When the water holding capacity in the field exceeds 80%, it will be detrimental to corn growth. It must be based on soil moisture and reasonable protection of irrigation and drainage, to maintain a larger area of ​​green leaves, promote the transfer of nutrients in the vegetative organs to the grain, ensure that many grains, weight, get a good harvest.

Second, control corn lodging, reduce production losses.

Third, timely control of red spider. Control methods: 1. Remove insect leaves at the bottom in time to prevent spread. 2. Spray. The focus is on the lower middle leaves. Can choose to use Avermite EC or four drugs and other agents, due to small insects, mainly gathered in the back of the leaves, therefore, spraying must be sprayed up, from the bottom up and evenly on the back of the leaf spray, the upper and lower leaves must Spray it. At the same time, the amount of the drug should be sufficient, and the drug solution should be sufficient. 3. Fumigation. Mu with 3% of phosphorus granules 1.5 kg, or 55% of the 3911 EC 1 kg mixed sand or sawdust 20 kg, evenly sprinkled in corn fumigation control.

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