The latest methods and matters needing attention of emasculating corn

At the ear stage of corn management is related to corn yield, and at this time there is a technique that can increase yield, that is, emasculation, many doubt that corn emasculation can really increase yield? In fact, according to practical production, emasculation can increase yield by 5%-8%. So how does corn emasculate? What should I pay attention to? Let's take a look.

1. Male removal time

When the tassel is 6-7cm out of the top leaf and the pollen is not scattered, the best emasculation is at this time, and the effect of yield increase is obvious. This is because the stem of the male ear is more fragile and tender, and the stem node of the male ear is not firmly adhered, easy to pull out, if it grows and develops for a period of time, the stem aging, stem node adhesion, then in emasculation, not only difficult to pull out, but also easy to pull out the top leaf, stem is also easy to segment, not only can not achieve the effect of emasculation, but also affect the yield. Tasseling to choose a sunny weather, but to avoid strong light time, so the best time is generally in the afternoon or afternoon, sunny but not strong period, so the temperature is appropriate, the wound after emasculation is easy to heal, so as not to suffer from bacterial infection, do not emasculate in rainy days, so as not to cause ear soaking leading to rot and death.

2. Method of emasculation

Emasculation should also master the method, can not be carried out blindly, otherwise it will have the opposite effect, generally alternate rows or alternate plants for emasculation, remove the male ears that have not blossomed, so as not to affect the normal pollination between plants. Corn has more male ears and more pollen. Pollen is mainly transmitted by wind, and pollen respiration is extremely strong, which will consume a lot of nutrients of plants and compete with female ears for nutrients, which is bad for corn growth. Therefore, removing part of the tassel will not only affect the growth of corn, but also avoid unnecessary nutrient consumption. After the plant is pollinated, all male ears can be cut off to reduce nutrient consumption, so that the nutrition of the plant is concentrated on the female ears, so that it can grow rapidly and improve yield.

3. Precautions for male removal

During emasculation, care should be taken not to cut off the leaves of the plant, otherwise it will affect the photosynthesis of the corn, reduce the synthetic nutrients of the corn, and reduce the yield, unable to achieve the goal of increasing yield. In addition, we should pay attention to the time of emasculation, timely emasculation, emasculation too late, yield increase effect is not obvious, emasculation should be interlaced or separated plants, do not emasculate each plant, and do not remove the male ears at the edge of the ground and the ground.

The above is the corn emasculation method and precautions, I hope to help you, want to know more about corn planting knowledge, please pay attention to us.