Causes of poor fruiting of corn ears

Corn is an important field food crop in China, and its planting area is extremely extensive, but poor ear fruiting is a common phenomenon in the process of corn planting, which will lead to the decline of corn yield if not controlled in time. So what is the reason for the poor fruiting of corn ears? Let's take a look.

1. Adverse climate

Drought and waterlogging weather have a great impact on the growth and development of maize, affected by waterlogging in the seedling stage, it is very easy to form sprouting and waterlogging, affecting the formation and differentiation of female ears, while in the male silking stage, drought and lack of water will affect pollination and cause empty ear baldness. Therefore, for water management is extremely important, in the seedling stage should pay attention to drainage and waterlogging, in the male should pay attention to watering, to keep the soil moist.

2. Lack of nutrition

When the soil fertility is insufficient to meet the growth and development of maize, it will lead to poor plant growth, relatively delayed silking of female ear, resulting in uncoordinated florescence, loss of pollination opportunity, and grain deficiency of ear. Improper matching of nitrogen, phosphorus and potassium fertilizers will lead to filament abortion, baldness, lack of nutrients in the later growth stage, late silking at the top, degeneration of female flowers, deformation of stigma, and lack of grains. In the growing period of corn, we must ensure its adequate nutrition and promote its normal development.

3. Temperature and humidity are not suitable.

The suitable temperature for corn flowering is 22-26 degrees, and the suitable relative humidity is 60 percent. When the temperature is higher than 30 degrees and the humidity is less than 60 percent, the number of flowers will be significantly reduced. When the temperature is higher than 38 degrees, it is difficult for flowers to blossom. Drought before heading will lead to poor development of florets at the top of the ear, delayed silking of the female ear, drought and lack of water after the male heading, and delayed silking of the female ear, resulting in a rare florescence and affecting pollination. In addition, the high temperature and low temperature will make the pollen lose its vitality, and the pollination quality is poor, so the male is short of grains. During the flowering period, the temperature and humidity of corn should be strictly controlled to make it bloom normally and improve the quality of pollination.

4. Diseases and insect pests

Corn is harmed by aphids, king rice borer, red spider, leaf spot, smut and so on, which will cause premature senescence of functional leaves, diseases and insect pests invade the ear, lack or hindrance of nutrition supply, and often form empty ear or can not be filled normally after pollination. Therefore, it is necessary to strengthen the prevention and control of corn diseases and insect pests, increase the application of phosphorus and potassium fertilizer, improve disease resistance, find diseases and insect pests and control them in time.

The above is the introduction of the reasons for the poor fruiting of corn ears. I hope I can help you. If you want to know more about it, please follow us.