Causes and Control methods of Maize Tillering

Corn tillering often occurs at seedling stage. If corn tillering is not controlled in time, it will seriously affect the growth and development of corn. What is the cause of corn tillering? How can we prevent it? Let's take a look.

1. Variety characteristics

Corn tillering is one of the characteristics of cereal crops. Different varieties will show different tillering characteristics under the same cultivation conditions, which is inevitable.

Control methods: Before planting, through experimental planting or comparison, select varieties with weak tillering or no tillering, such as Zhengdan 958, Xundan 20 and other varieties, which will not tillering under normal circumstances.

2. Drought

Drought is also one of the reasons for corn tillering. Serious drought in corn growth period causes growth obstacles in the upper part of main stem, and tillering often occurs.

Prevention and control methods: for drought to timely irrigation, keep the soil moist, promote corn growth and development, especially in the soil water retention is not strong, to often water, and in the rainy season to do a good job of drainage treatment, so as not to soak roots.

3, planting too dense

Too low planting density is also easy to cause tillering phenomenon, which is more obvious in varieties with strong tillering, and tillering phenomenon will also occur if planting density is too low, so reasonable dense planting is conducive to controlling tillering occurrence.

Control method: reasonable density planting, according to the variety characteristics, such as plant height, leaf angle size, determine a reasonable population density, so as to avoid too high density and cause closed field or excessive thinning caused by tillering. Tillering phenomenon of corn can be removed manually in combination with tillage. The method is to pull out tillers first, and then carry out intertillage and tillage. Generally, tiller can be effectively inhibited by combining high tillage with intertillage at seedling stage.

4. Diseases

When corn suffers from certain diseases, tillering phenomenon will also occur. For example, when it suffers from downy mildew, many sterile lateral branches will grow on the stem nodes of corn, the main stem is high, the stem is thin and easy to lodge, and there is no yield. The main reason of corn downy mildew is that it occurs when it suffers from low temperature and rain or waterlogging in growth period, and when the field is closed, insufficient light and poor ventilation occur.

Control methods: improve field irrigation conditions to avoid the occurrence of downy mildew, planting to avoid shaded plots or depression dead corner, change general planting to large and small row planting, maintain reasonable plant spacing, determine reasonable row direction, can effectively improve field ventilation and light transmission conditions, prevent disease and tillering occurrence. Downy mildew should be prevented and controlled in time to avoid spreading the disease.

The above is the introduction of corn tillering reasons and control methods, I hope to help you, want to know more about the relevant knowledge, please pay attention to us.