New technology for high yield corn planting, corn planting technology

In the planting of corn, in order to obtain the ideal yield and income, it is necessary to do a good job in the management of all links, start from the details, and do not ignore any management link, in order to ensure the high yield and stable yield of corn.

To have a high yield of corn, it is necessary to choose varieties with higher yield and strong resistance to stress, it is best to choose Nongda 108, Denghai 9, Zhengdan 958, Ludan 981, etc., before sowing, we must select seeds, remove deflated grains, small grains, unqualified grains, etc. After the seeds are selected, the germination rate can be tested 15 days before sowing, and then the seeds can be spread out and dried in a dry sunny place 3-5 days before sowing.

The planting time and temperature control is also very critical, when the spring temperature reaches more than 12 °C, it can be sown, Pingba and shallow hill areas are generally sown in mid to early March, and deep hills, middle and low mountainous areas are suitable for sowing seedlings in late March and early April, so as to shorten the symbiosis period of wheat and jade, and cultivate strong seedlings.

In order to achieve a high yield of corn, it is provided with humus-rich and loose and breathable sandy loam soil, and then applied rotted chicken and duck manure to the soil surface, and then ploughed the land to make it more fertile and soft, and then the corn seeds can be sown on the soil surface to promote its vigorous growth.

Corn needs sufficient nutrients in the growth process, when breeding corn, it is necessary to apply 2-3 times of nitrogen, phosphorus and potassium compound fertilizer for it after the plant emerges, so that the growth rate of corn is accelerated, and during the corn fruiting period, it is necessary to spray potassium dihydrogen phosphate on its leaves, so that the yield of the plant is increased.

Corn likes water, but is not tolerant to waterlogging, when breeding corn, you need to adjust the frequency of watering according to the weather conditions, in the rainy season, you need to dig a drainage ditch for corn, and drain the water in the soil in time to avoid corn water decay, and when the environment is relatively dry, you need to water the corn every three days.

Taking the No. 8 variety of Agricultural Science and Technology selected and bred by the team of Professor Wu Quanming of Northwest A&F University after 6 years of repeated experiments, the yield per mu of general planting is about 1000, but under high-yield cultivation, the yield per mu is likely to exceed 1200 kg. In addition, under the conditions of normal planting and high-yield planting, the yield gap per mu of Shaanxi 609 was as high as 500 kg. Although the region is different, the yield is not much, but the difference in the yield of corn is mainly in the management, simply rely on the sky to eat, desperately spray all kinds of pesticides to no avail, the yield will definitely not go up, but pay attention to these points, the yield of corn will naturally rise.

Sowing problems. 1. Sowing period.

High-yield planting has strict requirements for the sowing period, under normal circumstances, each planting area has the best sowing time, taking Henan Province as an example, late April every year is a better choice, not too early, not too late.

2. Seed selection (high-yielding varieties).

Some varieties themselves can not reach the yield of 1200 kilograms, no matter how much cultivation is useless, so we take the No. 8 Agricultural Science University of Xinong University as an example, before sowing, the seeds should be screened first, the size of the fullness should be the same or similar, before sowing, it is best to carry out drying treatment, it generally takes 2-3 days, during the drying period, turn it over when there is nothing to do.

3. Deep and shallow species.

Shallow planting can be done in wetter climates, and deep planting is done in drier climates.

4. Planting density.

The planting density is about 10,000 plants per hectare, and too loose or too dense is not conducive to achieving a high yield of more than 2,400 catties of corn.

The high-yield corn variety Longgao L2 is known for its yield per mu of grain (667) and iron resistance.

In 2002, the average yield per hectare of Longgao L2 production test was kilograms. [1]

Longgao L2 was bred by the High Yield Breeding Room of the Maize Research Institute of Heilongjiang Academy of Agricultural Sciences.

When planting corn, it is necessary to carefully plough the soil, so that the root system can quickly adapt to the environment, choose waterlogging and drought resistance or high yield, high stability of varieties, planting density is about 5000 plants per acre, when infestation by pests and diseases, refrain from using chemical pesticides, try more biological control, can reduce the resistance of pests and diseases to drugs.

In corn planting technology, in order to make the root system of the plant better rooted in the soil, it is necessary to plough the planting soil, and meticulous tillage can make the corn seedlings adapt to the new environment faster, and they must be ploughed in suitable weather; It is about 15 centimeters of ploughing.

Before planting corn, it is necessary to carefully investigate the soil and environment of plant growth, select the most suitable varieties for sowing, it is best to choose varieties that are waterlogging and drought resistant, and have a certain immunity to diseases and insects, and you can also choose varieties with high yield and high stability, and there will be a good yield at the harvest period.

The planting density of corn directly affects the final yield; After strict calculations by scientists, about 5,000 plants are planted on an acre of land, and between this density, the plants can be well lit and breathe more naturally; Compared with the planting density of corn in other fields, the density of 5,000 plants per mu is also the highest yield.

Under normal circumstances, the high incidence period of diseases and insects is generally in the rainy autumn, and the air humidity is higher in this season, which is more suitable for the breeding of bacteria and the infestation of diseases and insects; It is necessary to drain the excess water in the field in time, refrain from using chemical pesticides, and try biological control to reduce the harm to the soil and plants.

The planting methods of corn include land preparation, seed selection, sowing, dense planting, and fertilization.

Tools needed: seeds, hoes, sickles, pesticide spraying cans, automatic seeders, automatic harvesters, airplanes spraying pesticides.

1. Land preparation. Seize the favorable opportunity of good soil moisture in the near future, pay close attention to the changes in the weather, prepare for tillage as soon as possible, and prepare the land in time, so as to create conditions for sowing with sufficient moisture at the appropriate time and sowing seedlings at one time. For spring plots and spring drought-prone areas, it is necessary to prepare the land as soon as possible, make full use of the soil slurry water, and suppress and protect moisture in a timely manner, and for autumn plots, it is necessary to suppress and protect moisture in a timely manner, and for spring flood-prone areas and low-lying plots, it is necessary to take advantage of the conditions such as spring temperature rise and strong wind to clear the ditch and manage the moisture as soon as possible, and carry out ploughing and drying and ridge scattering to ensure timely sowing.

2. Seed selection. According to the conditions of light and heat resources in various places, the scientific variety layout and reasonable maturity collocation. Select excellent varieties with high yield and stable yield, disease and insect resistance, stress resistance, resource efficiency, and suitable for mechanized operations that have passed the national or provincial examination (recognition), and the varieties should be suitable for maturity, and the planting should be eliminated from crossing the area to ensure safe maturity.

In the maize structural adjustment area, select high-quality special or grain-fed silage corn varieties that have passed the national or provincial examination (recognition) and are suitable for local planting according to local conditions.

3. Sow seeds. According to the soil moisture, temperature and corn variety growth period to determine the best sowing date, so that the seed is accurate, the seed is uniform, the seed fertilizer is isolated, the suppression is moderate, the depth is consistent, the soil is tightly covered, and the mechanical precision sowing is suitable for moisture in a timely manner, so as to improve the sowing quality and strive for a sowing to preserve the seedlings. For areas with moderate soil moisture, mechanical ditching, sowing, fertilization, suppression, and ridge forming should be completed at one time to reduce soil agitation and maximize the use of soil moisture.

4. Dense planting. According to the characteristics of varieties and the actual production in various places, a reasonable group structure should be constructed to lay a group foundation for seizing bumper yields. Under general production conditions, about 4,000 seedlings per mu are maintained.

For plots with high fertilization level, good soil fertility, suitable moisture preparation in the Guga Office, good irrigation conditions and production conditions, and the use of dense corn varieties, the seedling density per mu can be increased to 4500-5000 plants.

5. Fertilization. Ensure that the seeds have sufficient nutrients during the development process, and effectively cultivate the fertility of the soil by applying basal fertilizer to the soil, so that the physical properties of the soil can be improved, which is conducive to the root development of corn seeds.