Corn is an important food crop, and how to grow it to achieve high yields is a concern for many farmers. This article will introduce key techniques and measures for corn cultivation to help farmers increase yields.
First, choose good breeds.
Selecting high-yielding and high-quality varieties that are suitable for the local climate, soil and market demand is a prerequisite for achieving high corn yields. It is necessary to select varieties that have been approved and suitable for local planting, and at the same time consider the stress resistance, adaptability and quality traits of the varieties.
2. Soil preparation and fertilization.
Before sowing, it is necessary to carry out deep ploughing and land preparation, break the bottom layer of the plough, and increase the permeability of the soil. At the same time, it is necessary to apply sufficient base fertilizer, mainly organic fertilizer, supplemented by chemical fertilizer, generally 2000-3000 kg of organic fertilizer per mu, 40-50 kg of compound fertilizer.
3. Sow seeds at the right time.
The timing of sowing is determined according to local climatic conditions and maize growth characteristics. Generally speaking, sowing is done when the soil temperature is stable at 10-12 cm, and the sowing depth is generally controlled at 3-5 cm. At the time of sowing, it is necessary to plant reasonably densely, and determine the planting density according to the characteristics of the variety, so as to make full use of land resources and improve yield.
4. Field management.
During the growth period of maize, field management should be strengthened. It is necessary to cultivate and weed in time to keep the soil loose and promote the development of the root system. At the same time, according to the growth of corn, timely top dressing, generally top dressing 10-15 kg of urea. In the process of corn growth, it is also necessary to pay attention to the prevention and control of pests and diseases, and adopt comprehensive control measures, such as the combination of agricultural control, biological control and chemical control.
5. Harvest and storage.
At the maturity stage of corn, the harvest time should be determined according to market demand and variety characteristics. In general, corn can be harvested when the kernels harden and take on the color inherent to the variety. After harvesting, it should be dried and stored in time to prevent mildew and rodent infestation.
In summary, in order to achieve high maize yield, it is necessary to strengthen the implementation of technical measures from the aspects of improved seed selection, land preparation and fertilization, timely sowing, field management and harvest storage. At the same time, it is necessary to flexibly use various technical measures according to the local climate, soil and market conditions to improve the yield and quality of corn.