What is the cause of corn banana ear?

Corn banana ear is a kind of malformation phenomenon, which shows that the plant growth in the field is relatively neat, the plant height is uneven, the plant shape is inconsistent, the stem and stem are connected, the shape is like banana ear, the pollination is poor or no pollination, no corn kernel, which seriously affects the corn yield. Form, then, the cause of corn banana ear?

1. The stage of differentiation of maize ears is caused by severe drought. This year, the rainfall in our township in June was 42%, 10% and 60% lower than that in normal years. The panicle differentiation stage encountered rare dry weather, which caused some plants to kill the main axis of the ear, and the stalks of the fruit stalk accumulated more nutrients. In the case, latent buds sprout new ears and form "banana ears." Linyi Fertilizer Network Copyright
2. The ear differentiation period encounters low temperature hazard. The corn sowing date in the current heading stage in our township is generally from mid-April to early May, and the ear differentiation period is generally in mid-May and early June. In my hometown, on May 1 and June 4, there were extreme temperatures of 6.7 °C and 12.9 °C, respectively, which was significantly lower than the 18 °C index of the lowest temperature of ear differentiation. The low temperature caused the main ear development of some maize plants to be inhibited, while the stalks of the stalks of the stalks were more abundant in the accumulation of nutrients, and the late buds sprouted new ears to form "banana ears". In addition, due to the extreme high temperature climate caused by the flowering period, the main ear failed to pollinate, and the early stage of fertilizer and water conditions stimulated the latent buds of the stalks of the stalks to sprout new ears. Linyi Fertilizer Network Copyright
3, extreme temperature (35 °C-37 °C) and continuous drought during the heading and flowering period, causing the pollen to lose its vitality, leading to abortion with flowering, and the ear is not pollinated and fertilized, thus forming a banana ear with no grain or few seeds. ". Linyi Fertilizer Network Copyright
4. Pest and disease hazards are also one of the reasons for the long "brown ears" of corn. The corn earling differentiation period encounters the damage of corn borer, aphid and corn leaf spot, which will also affect the normal formation of corn ear. For example, if the ears of corn are foraged by corn, in the case of good fertilizer and water conditions, new ears are differentiated into the leaves of the female ears of the corn, forming a "banana ear". Linyi Fertilizer Network Copyright
5, improper cultivation measures to promote the occurrence of corn "banana ears". First, the sowing date is too early, the ear differentiation period encounters low temperature; second, the density is too large, and the field is closed. The survey found that the corn masses with "banana ears" generally have a large density, the fields are closed, the light is insufficient, and the pollination is poor, so that the ears cannot develop normally. Third, the fertilizer is too large. In the stage of maize ear development, the supply of water and fertilizer is too large, which causes multiple inflorescences to mature and form multiple ears. Linyi Fertilizer Network Copyright
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