The cause and solution of empty Corn stalk

Corn empty stalk is a common phenomenon in the process of corn planting, and it has become one of the important reasons affecting corn yield. Corn empty stalk is no ear, the normal empty rod rate is about 2%, and the loss is less, but once it is serious, it can reach 30%. Cause huge economic losses to farmers. So what is the reason for the empty corn stalk? Let's take a look at the pro-farm network.

1. High planting density

When planting corn, in the same planting environment, with the increase of planting density, the empty rod rate of corn will gradually increase. The high planting density leads to poor ventilation and insufficient light in the field, reduces the photosynthesis of maize, and synthesizes less nutrients, which leads to insufficient nutrition and leads to empty pole.

Solution: reasonable close planting, different varieties have different requirements for planting density, seed selection must be in accordance with local conditions, according to varieties, local environment and cultivation methods to determine the appropriate planting density. To ensure the ventilation and light transmittance of corn during growth, the stem grows sturdily, satisfies the photosynthesis of leaves, and provides sufficient nutrients for the full development of ears.

2. Low fertility

If the fertility is not enough during planting, the corn can not get sufficient nutrients, resulting in stunting and empty rod phenomenon. In addition, the empty rod rate of single fertilization is higher than that of formula fertilization.

Solution: when planting, we must apply sufficient fertility to ensure nutrient supply, but at the same time, fertilization should not be single, so that organic fertilizer and chemical fertilizer should be combined, sufficient base fertilizer should be applied during planting, combined with topdressing fertility, and nitrogen, phosphorus and potassium fertilizer should be matched reasonably. nutrients needed to ensure the growth of stems and ears.

3. Lack of water

When the stem and ear of maize grow, it needs to absorb a lot of water from the soil, but if the soil is too dry, resulting in insufficient water supply, maize will grow short and thin, the leaves will yellowing and withering, ear differentiation will be blocked, and the phenomenon of empty rod will appear.

Solution: during the jointing and heading stage of corn, if the soil is too dry and hot, watering should be done in time to ensure the growth of corn. Attention should be paid to the amount when watering, and drainage should be carried out in time when watering too much, so as not to be counterproductive and cause empty poles.

4. cloudy and rainy weather

In the heading and pollination period, if there is a long-term overcast and rainy weather, the pollen will absorb too much water and expand and break, die or stick together, causing the pollen to lose its fertilization effect and form an empty rod.

Solution: during this period, if it is inevitable because of the weather, artificial pollination can be carried out at this time to reduce the probability of empty pole.

5. Diseases and insect pests

During the growth of corn, it will suffer a lot of diseases and insect pests, which mainly harm the plant growth and development, resulting in poor plant growth and death in serious cases, while the insect pests mainly gnaw on leaves and roots and destroy the transport tissue, resulting in the abnormal transport of water and nutrients, resulting in tissue necrosis and the formation of empty rods.

Solution: when planting, we must pay attention to the prevention and control of diseases and insect pests, do not take it lightly, daily management, once diseases and insect pests are found and treated in time, after certain diseases and insect pests are diagnosed, we should prescribe the right medicine to eliminate diseases and insect pests and ensure the smooth growth of planting.

The above are the causes and solutions of the corn empty pole brought by the pro-agricultural network. This is the end of the introduction of the corn empty rod. If you want to know more, please pay attention to the pro-agricultural network.