Corn field management plan in March

Corn is one of the four major crops in my country and occupies a very important position in grain production. If you want high corn yields, you need to strengthen field management and create good conditions for the healthy growth of corn. Let’s talk about the corn field management plan in March.

1. Fine land preparation

Spring-sown corn requires deep plowing. If there is a previous crop, the stubble should be killed in time after harvest, and then organic fertilizer should be applied for deep plowing. The tillage depth should be about 20cm. In areas where spring drought is severe, continuous pressing and raking operations are used to compact the soil, which is more conducive to increasing and retaining moisture.

2. Sowing time

Generally, it is more suitable to sow when the temperature of the soil layer 5-10cm above the surface is stable at 10℃-12℃. Therefore, the suitable sowing time for spring corn is generally from March to May, depending on the regional temperature environment.

3. Seed treatment

The purpose of corn seed treatment is to increase the germination rate and promote early germination of seeds. There are many methods, such as soaking seeds in cold water for 6-8 hours, or soaking seeds in warm water for 4-5 hours. In addition, you can also use coating agents to treat the seeds, such as using 2% of Likeshow to mix the seeds.

4. Reasonable density planting

The planting density in plots with higher soil fertility is generally around 4,500 plants; in plots with lower soil fertility, it is appropriate to have around 4,000 plants per mu. It is best to plant at a reasonable density as required by the variety instructions. Please refer to the instructions on the back of the seed package for details.

5. Fertilizer and water management

Apply 40kg-50kg of compound fertilizer (17-17-17) per mu as base fertilizer . If conditions permit, add 1t-2t of organic fertilizer per mu. Apply urea once during the seedling stage, with a dosage of 10-15kg/mu. Apply urea and compound fertilizer according to the seedling condition during the flaring stage before heading.

6. Pest and disease control

During the seedling stage, the main prevention is stem rot. Common chemical control methods include 1000 times diluted 80% mancozeb wettable powder , 500 times diluted 50% carbendazim wettable powder, etc. Before planting, you can also spread lime or choose crop rotation to reduce pathogens. To control corn borers before male emergence, use 1000 times diluted chlorpyrifos and indoxacarb and 1000 times diluted 6% chlorpyrifos and cypermethrin for joint control.

That’s it