Factors Affecting the Yield of Grain Corn

BIOLOGICAL COMPONENTS OF CORN YIELD:

GERMINATION

• Soil temperature is not less than 10 o C
  
• The soil should be light and moist around the kernel
• It takes 12 - 17 days before emergence

THE PERIOD OF VEGETATION

• Active development of the root system
  
• Sensitivity to low temperatures
• Sensitivity to phosphorus deficiency
• Formation of the final sowing density
• At the stage of 10 leaves, it is especially in need of moisture and nutrients

PANICLE EMERGENCE AND FLOWERING

• Sensitive to nitrogen and moisture deficiency
  
• Stage of cob formation
• Sensitivity to high temperatures (40 ° C)
• Formation of the number of grains (25 days after flowering)

RIPENESS

• Physiological maturity is reached when the humidity is 40%.
  
• The accumulation of assimilants is completed
• Appearance of a black dot: the grain is no longer dependent on the cob

AGROTECHNICAL COMPONENTS OF GRAIN CORN YIELD:

SOWING

• Sowing with conditioned seeds
  
• Light, well aerated soil with sufficient moisture
• Sowing depth of 5-6 cm
• Sowing at a speed of 5-7 km/h with a precision seeder;
• Controlling the depth and uniformity of sowing.
• Adjust the sowing density

CROP CARE

• Application of soil herbicides after sowing
  
• Fertilizing with microelements in the phase of 4-6 leaves
• Application of insurance herbicides in the 3-5 leaf stage
• Meeting the nitrogen requirement at the stage from 10 leaves to flowering
• Treatment with potash fertilizers to increase drought resistance
• Pest and disease control before flowering

HARVESTING OF THE CROP

• Harvesting with threshing of heads of cabbage at a moisture content of not more than 25-30%.
  
• Harvest in a short time (10-15 days)
• Delayed harvesting and delayed harvesting leads to crop losses