Planting Technology and time of waxy Corn

Selection of varieties: select varieties with short growth period, wide adaptability and strong disease resistance. Planting density: row spacing is about 1 meter, litter spacing is 0.33-0.38 meters, one litter with two plants. Sowing time: spring waxy corn was sown at the end of February or early March, and autumn waxy corn was sown in late July. Direct seeding: soak seeds after sprouting, sow 2-3 seeds per litter. Floppy disk seedling: the width of seedling bed is 1.2-1.5 meters. Cover straw: sowing in autumn needs to cover straw.

I. selection of varieties

Varieties with short growth period, wide adaptability, strong disease resistance, beautiful spike shape and good taste of fresh fruit ears can be selected, such as Yu Nuo series, Jingkenuo series, Su-Yu series and so on.

2. Planting density

According to the row spacing is 1m, the litter spacing is 0.33m-0.38m, a litter with two plants, 3500-4000 plants per mu.

Third, sowing time

The main results are as follows: 1. Spring waxy corn is generally raised by plastic film mulching, which is about 5-7 days earlier than conventional waxy corn. Generally, it can be sowed at the end of February or early March, and then transplant at the end of March.

2. Autumn waxy corn should be sowed in late July, and the latest sowing time should not exceed the middle of August. In high altitude areas, the sowing time should be advanced to the middle of July.

Fourth, sprouting and live broadcasting

1. Planting in a large area, generally using the technology of accelerating germination and direct seeding. The amount of seeds used per mu is about 1kg. First, soak the seeds for 2-3 hours, then use wet towels or wet sand to moisturize and accelerate germination, and sow 2-3 seeds per litter.

2. Sowing waxy corn in autumn due to high temperature will lead to rapid emergence of seeds, generally 3-5 days after sowing, seedlings can be fixed 10 days after emergence, and 2 seedlings can be retained in each litter.

5. Raising seedlings on floppy disk

1. Plastic floppy disk can be used to raise seedlings. During this period, a special plastic floppy disk for waxy corn seedlings with 50-100 holes is selected, the width of the seedling bed is 1.2-1.5 meters, the bottom of the bed needs to be leveled and compacted, and the nutrient soil can choose 70% of the fertile and loose vegetable garden soil. Then mixed with 30% high-quality farm fertilizer and 1-3% calcium superphosphate, mixed and sieved, add an appropriate amount of human and animal manure to compost.

2. Put the floppy disk in the whole nursery bed, close the bowl bottom and the bed, then sprinkle the prepared nutrient soil into the floppy disk hole, fill the disk hole 3cm 4, sow 2 full seeds in each hole, then fill the disk hole with nutrient soil, fill the gap around the seedling plate and between the seedling plate, fill it with fine soil, then pour enough water, and finally cover with a layer of wet straw or build a sunshade.

3. The moisture of the seedling bed is based on the standard of non-dry white soil. After emergence, the mulch needs to be removed immediately to promote the growth of the seedlings, and then transplant to the field when the seedlings grow from two leaves to three leaves.

6. Cover straw

It can be sowed in autumn in the field, and then covered with straw, which is beneficial to drought resistance and seedling protection. After emergence to the stage of heading and flowering, if there is a serious drought, clear dung water can be used to resist drought and protect seedlings.

7. Matching fertilization

1. Waxy corn is a crop with high fertilizer demand, so it needs sufficient fertilizer and water. Generally, 2000kg soil residue fertilizer, urea 10-12kg, calcium superphosphate 35-40kg and potassium chloride 6kg can be used as base fertilizer per mu.

2. After entering the jointing stage, 7-8kg urea mixed with clear fecal water 2000kg fertilizer could be applied per mu, waxy corn entered the big trumpet stage, that is, it could be re-applied bud fertilizer 40-50 days after sowing, and urea 17-20kg, potassium chloride 8kg and clear fecal water 2000kg could be applied per mu.

VIII. Prevention and control of diseases and insect pests

During this period, we should focus on the control of waxy corn borer, generally in the trumpet period, we can use solar energy, frequency vibration insecticidal lamp, yellow plastic plate trap and other physical control, during the need to control the use of chemical pesticides, which is helpful to reduce pesticide residues and ensure the food safety of vegetable waxy corn.

IX. Timely harvest

Generally, it can be harvested 30-35 days after pollination. Early harvest is prone to insufficient filling, waxy and low yield, while too late harvest will lead to lack of fresh flavor.