The cause and solution of the latest Corn empty Bar

Empty stalk is a common phenomenon in maize planting process, which has become one of the important reasons affecting maize yield. Empty stalk means no fruit ears. The normal empty stalk rate is about 2%, and the loss is small, but once serious, it can reach 30%, causing huge economic losses to farmers. So what is the cause of the corn stalk? Let's take a look at the pro-farming network together.

1. High planting density

When corn is planted, under the same planting environment, with the increase of planting density, the empty stalk rate of corn will gradually increase. High planting density leads to poor ventilation and insufficient light in the field, which reduces photosynthesis of corn and synthesizes less nutrients, resulting in insufficient nutrition and resulting in empty stems.

Solution: Reasonable density planting, different varieties have different requirements for planting density, in the selection of seeds must be adapted to local conditions, according to varieties, local environment and cultivation methods to determine the appropriate planting density. To ensure the ventilation and light transmission of corn during growth, the stem grows strongly, meets the photosynthesis of leaves, and provides sufficient nutrients to fully develop ears.

2. Low fertility

If the fertility is insufficient during planting, the corn growth cannot get sufficient nutrients, resulting in poor development and empty stem phenomenon. In addition, the empty stem rate of fertilization is higher than that of formula fertilization.

Solution: When planting, it is necessary to apply sufficient fertility to ensure nutrient supply, but at the same time, fertilization should not be single, so as to combine organic fertilizer and chemical fertilizer. When planting, apply sufficient base fertilizer, cooperate with fertilizer application, reasonably match nitrogen, phosphorus and potassium fertilizer, and ensure the nutrients required for the growth of stem and ear.

3. Insufficient water

When corn stems and ears grow, they need to absorb a lot of water from the soil, but if the soil is too dry, resulting in insufficient water supply, corn will grow short and thin, leaves yellow and withered, ear differentiation blocked, and empty stems appear.

Solution: In the jointing and heading stages of corn, if the temperature is high and the soil is too dry, water it in time to ensure the growth of corn. Pay attention to the amount of watering. Excessive watering should be drained in time to avoid counteracting and causing empty stems.

4. Rainy weather

In the heading and pollinating stage, if long-term rainy weather is encountered at this time, the pollen will absorb too much water and expand and rupture, die or stick into a mass, resulting in the loss of insemination of pollen and the formation of empty stems.

Solution: At this time, if it is weather reasons, it is inevitable, artificial pollination can be carried out at this time to reduce the incidence of empty poles.

5. Diseases and pests

When corn grows, it will suffer a lot of diseases and insect pests. The diseases mainly harm the growth and development of plants, resulting in poor growth of plants. In severe cases, they can kill. The pests mainly nibble on leaves and roots, destroy conducting tissues, cause water and nutrients not to be transported normally, and finally lead to tissue necrosis and form empty stems.

Solution: When planting, we must pay attention to the prevention and control of pests and diseases. We must not take it lightly. We should manage it daily. Once pests and diseases are found, they should be treated in time. After a certain pest and disease is diagnosed, the right medicine should be given to eliminate pests and diseases to ensure the smooth growth of planting.

The above is the reason and solution of corn empty stalk brought by pro-agricultural network. The content of corn empty stalk is introduced here. If you want to know more, please pay attention to pro-agricultural network.