The causes and Preventive measures of the latest uneven emergence of Maize

In the process of maize production, irregular emergence often results in a decrease in corn density, thus affecting the yield and quality of corn, so why does the phenomenon of uneven emergence of maize appear? How to prevent this phenomenon? Let's get to know it with the editor.

1. Reasons for uneven emergence of corn seedlings

1. Extensive cultivated land

When farmers cultivated land, the depth was different, the plough layer was shallow, the size of soil clumps was different, and the soil preparation was uneven and uneven. After sowing, there was less moisture in the soil and the seeds suppressed by clumps emerged slowly. It is even difficult for seedlings to emerge.

2. Poor seed quality.

The seed quality of corn itself is also related to the neatness of seedling emergence. If some farmers buy poor quality seeds, they will also appear the phenomenon of uneven seedling emergence in production.

3. Low sowing quality

Different depth of sowing and different thickness of soil cover will affect the speed of seedling emergence, such as slow emergence of seeds with deep sowing and thick soil cover. The seeds covered with thin soil are fast, but the plants with shallow sowing are easily washed by Rain Water or irradiated by the sun, which directly affect the emergence of seedlings.

4. Adverse climatic effects

Climate will also affect the quality of seedling emergence, for example, in case of dry weather after sowing, the serious shortage of soil moisture will affect the quality of seedling emergence; if it is a continuous overcast and rainy weather, soil moisture is too early, corn seeds are very prone to rotten sprouts and dead seedlings.

5. Diseases and insect pests

Seeds that have not been sterilized are extremely vulnerable to diseases and insect pests, especially ground tigers, which gnaw the seeds, resulting in uneven emergence of seedlings.

II. Preventive measures

In view of the various reasons for the uneven emergence of corn seedlings, targeted preventive measures should be taken, first of all, intensive cultivation should be taken before sowing, requiring uniform depth, flat and thin targets, no large lumps and uniform. It is necessary to select excellent varieties with strong disease resistance and use chemical coating before sowing to prevent the harm of diseases and insect pests. The depth of sowing should be the same, so as not to cover the soil too deep or too shallow, and the soil cover should be consistent. The best effect for pest control is seed coating, because the coating agent contains insecticides, fungicides and plant growth regulators, which can not only play an excellent effect on pest control, but also promote seed germination.

The above are the reasons for uneven emergence of corn and preventive measures, hope to help you, want to know more related knowledge, please pay attention to us.