High-yield cultivation techniques of Sweet Crispy Corn with good Economic benefit

Grow corn

Sweet and crisp corn is a good economic crop with expanding planting area in recent years in the high river valley, most of the dam area and some mountainous areas of our county. The high yield cultivation measures are as follows:

1. Select excellent varieties: Kupra 902 and so on.

2. Broadcast early at the right time. The high yield can be obtained if the high valley can be sown at the beginning of February, the dam area is from early March to early April, and the mountain area should be determined according to water conservancy conditions and rainfall.

3. Reasonable close planting. Sowing before May can sow 4500mur5000 plants per mu. The sowing specification is 120cm moisture, 2 rows per soil moisture, plant spacing 22cm--25cm. In May and after sowing, the sowing density should be reduced appropriately, 4000murmur4200 plants per mu, and the plant distance should be adjusted to 26cm--28cm.

4. Fertilization

Urea 20 kg / mu + compound fertilizer 40 kg + calcium 30 kg / mu was applied in soil preparation. The seedling fertilizer applied urea 10MUR 15kg per mu when 4MUR 5 leaves, and urea 30MUR 35kg + potassium sulfate 10MUR 15kg per mu when 7MUR 8 leaves.

5. Pest control

(1) after emergence, "Pepsi" and "Yinnong No. 2" should be sprayed in time to control borer and other pests.

(2) pay attention to the control of aphids and spray imidacloprid 2 Mel 3 times according to the occurrence of aphids in sweet and crisp corn before heading to maturity.

(3) from the silking stage to the silking stage, cypermethrin was sprayed twice with cypermethrin to control the infestation of borer and cotton bollworm into the ear.

(4) at the initial stage of the occurrence of rust, the ideal control effect can be obtained by spraying azoxystrobin + nitrilol or difenoconazole + azoxystrobin twice.