What are the precautions for growing sweet corn?
What should be paid attention to when growing sweet corn? Please advise, thank you. When growing sweet corn, pay attention to the following: 1. Site selection: choose a plot with good water conditions and good soil texture. 2. Raising seedlings and transplanting: raise seedlings in nutritional pots or nutritional trays. 3. Seedling stage management: single-seed dibbling, water in time; if seedlings are weak, appropriately water with clear manure water or scatter...
What should be paid attention to when growing sweet corn? Please advise, thank you.
When growing sweet corn, pay attention to the following:
1. Site selection: choose a plot with good water conditions and good soil texture.
2. Raising seedlings and transplanting: raise seedlings in nutritional pots or nutritional trays.
3. Seedling stage management: single-seed dibbling, water in time; if seedlings are weak, appropriately water with clear manure water or scatter a small amount of urea.
4. Standardized bed opening: open beds at 1.1 m, with a 20 cm ditch; shallowly open a fertilizer ditch in the center of the bed; apply 1000-2000 kg of decomposed farmyard manure per mu, and 60 kg of Nongjiale No. 1 (special for corn); after thorough mixing, rake level.
5. Plastic film mulching: before covering the film, spray 41% Yunongsi emulsifiable concentrate on the ground at 100 g per mu to kill weeds; adopt the method of covering the film first and then breaking the film for planting; press and seal the edges of the film tightly.
6. Oriented transplanting in wide-narrow rows. Specification (90+40)/2 x 22 cm, plant about 4300 plants per mu; after planting, water thoroughly to settle the roots.
7. Fertilizer and water management: topdressing can be done 10 days after planting; apply 5 kg of urea per mu as a seedling-promoting fertilizer; at the large trumpet stage, apply 15-20 kg of urea; spray the leaves with 600 times diluted Prodan (high-potassium type) 3-4 times.
8. Remove tillers and set ears: promptly strip off ineffective tillers, leaving one ear per plant.
9. Pest and disease control:
Corn borer: use 70-90 ml of 5% Yitaibao per mu or 50-80 ml of 48% Lesiben emulsifiable concentrate per mu, diluted with water and sprayed over the whole field; spraying in the morning is preferable.
Aphids and cabbage caterpillars: when 50% of tassels have emerged, spray the whole field with 800-1000 times diluted Lulang (biological pesticide), once every 10 days.
10. Timely harvest: generally harvest 18-22 days after pollination; nighttime or early morning when the temperature is cool is better.
11. Grade fresh ears for market.
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