What are the measures to prevent the death of corn seedlings? The following four points should be kept in mind

Corn is one of the staple foods of northerners. There are also many people like to eat. But when growing corn, it is easy to have the symptoms of dead seedlings. How can we prevent and solve the problem? Next, the editor of Tuliu.com will take you to learn about it.

Measures to prevent the death of Maize seedlings

First, do a good job in seed treatment

1. Seeds must be selected.

Do a good germination test, the germination rate is generally not less than 95%, absolutely can not use seeds with unidentified germination rate.

2. Using coated corn seed to control corn underground pests.

If the corn seeds are not coated, the use of chemicals before sowing is the key measure to ensure the integrity of the seedlings.

2. To improve the quality of cultivated land, the depth of ploughing should be suitable.

Plots with high humidity are not suitable for ploughing and sowing, because ploughing and ploughing of soil with high humidity is easy to form hard blocks that are not easy to break, and the tillage layer is also easy to be compacted. Therefore, it is necessary to grasp the suitable tillage period when the soil moisture is suitable. The depth of ploughing should depend on the nature of the soil, the amount of fertilizer, labor, agricultural machinery and tools, etc. The land with heavy soil should be deep, the land with soft soil should be shallow, and the land with fertile soil, deep soil layer and rich base fertilizer should be deep and barren. The soil layer is shallow and the base fertilizer is less should not be too deep.

III. Matching agricultural machinery and tools to reduce mechanical compaction

Mechanical sowing should try to plow, rake, sow and cover several kinds of machines to complete several steps of operation, so as to reduce the number of mechanical trips in the field, so as to reduce the excessive rolling of the land.

Fourth, improve the quality of sowing

1. The depth of sowing should be the same as possible.

The suitable sowing depth and depth of corn is an important link to ensure that the seedlings are strong. Under normal conditions. The suitable sowing depth is 3-4cm; the temperature is low and the humidity is high. When the soil is hardened, it should be shallow, which can be changed to 2-3 em. sow deeply on the sunny slope. Shallow sowing on the slope behind the sewer.

2. Sowing in right amount at the right time and seedling in time.

Determine the appropriate sowing time according to the local climate and soil moisture of the variety plot. According to the germination rate of seeds and different sowing methods, the appropriate sowing rate was determined. A variety of 60ky pinprongs is used to broadcast on-demand 25--37.5kg/hm2. Don't sow too much. So as not to squeeze the seedlings. Seedlings in the second to third leaf period and fixed seedlings in the five-leaf stage.

3. Suppress in time after sowing, loosen the soil and preserve soil moisture.

When the soil is dry after sowing, it should be suppressed in time, and when the soil is wet, it should also be suppressed after the surface f, so as to make the seeds in close contact with the wet soil and meet the moisture requirements of seed germination. To facilitate the emergence of seedlings. Especially for the plots and sandy loam where the soil moisture is poor and the land is larger and more, suppression after sowing is more important. In case of heavy rain before seedling emergence after sowing, the field should loosen the soil in time after rain, break the hard crust of the surface, disperse soil moisture and permeate air, so as to promote the emergence of seedlings. Through post-broadcast crackdown. Increasing the ability of soil moisture conservation on soil is beneficial to seed germination and ensures the integrity of seedlings. Miao Qi, one of the important measures of strong bacteria.

4. Rational use of chemical fertilizers and pesticides. Prevent the occurrence of fertilizer burning seedlings or drug damage.

All right, these are the measures to prevent the death of corn seedlings brought by the editor of Tuliu.com. In order to increase the income of high-yield maize farmers, we must pay attention to the cultivation techniques during the sowing period according to the growth and development characteristics of maize, so as to create good conditions for maize germination and seedling emergence and prevent the occurrence of physiological diseases. In order to achieve high and stable yield of corn farmers to increase production and income. I'll see you next time.