How can we effectively prevent and control the occurrence of maize lodging?

Generally speaking, lodging can be divided into root lodging and stem lodging, the former is related to cultivation measures and environment, while the latter is more related to variety specificity. However, no matter what kind of lodging, it will cause great losses to the yield of crops, and how to reduce maize lodging is also a major issue in production. The following specific measures are introduced for your reference.

Select varieties with high resistance

There are some differences in lodging resistance among different varieties, such as single series maize with stout stalk, high Lignification, relatively strong resistance to lodging, and maize with short distance between stem nodes and low ear position. The selection of highly resistant varieties can also be regarded as a precaution.

Appropriate sparse planting

According to the research table, sparse planting is very effective in improving lodging resistance, so we should not blindly increase the planting density when planting corn, which not only will not achieve the effect of increasing production, but may also grow thin and weak because the planting density is too high. Can't bear lodging.

Do a good job in pest control

Diseases and insect pests are also a major factor in inducing lodging, especially when corn is about to enter the mature stage, corn stalks will be eroded by some heart-drilling pests, resulting in the weakening of stem lodging resistance. For this, it is necessary to clean up the weeds in the field in time, reduce the harm of corn borer and stem rot in the corn field, and avoid the phenomenon of stem falling in windy weather.

Control water and fertilizer

This piece is mainly due to excessive nitrogen fertilizer and lead to the prosperous growth of corn, and the remaining early stage of corn is relatively good, even if the nitrogen fertilizer is excessive, the maize will not lodge, but after entering the reproductive growth period, if the nitrogen fertilizer is excessive, it will cause excess vegetative growth, and at this stage, it is necessary to increase phosphorus and potassium fertilizer and reduce the amount of controlled nitrogen fertilizer.

When entering the jointing stage, it is not necessary to water too much without drought, but not to water or less to water. Avoid the vigorous growth of corn or the excessive spacing between nodes.

Of course, if the growth rate of maize in the seedling stage is too fast, it can also be controlled by growth regulators. Lodging for maize yield reduction is obvious, and now corn is about to enter the reproductive growth stage, after the corn ear growth, coupled with the summer weather, is the most prone to lodging season. At present, the problem of fertilization and watering must pay attention to the field management!

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