Welcome to Official Portal of Agriculture Department, Sikkim!

  • Change Font Size:
  • -A
  • |
  • A
  • |
  • +A
  • ||
  • Change Theme:
 
Home About Us Contact Us

Climatic Requirement

Climatic requirement

Maize is a warm weather loving crop. It is grown under extremely divergent climatic conditions ranging from tropical to temperate region. It can be successfully grown where the night temperature does not go below 15.6 ºC as crop stops growing below this level. The crop cannot withstand frost at any stage of its growth. Young plants are highly susceptible to hailstorm. In Sikkim, occurrence of one or two hailstorms are usually observed in March-April. Therefore, to escape from hailstorm damage in the most critical/susceptible stage, early sowing of maize i.e. during February 2nd fortnight is recommended. The crop can be successfully grown in the areas receiving an annual rainfall from 60 cm to 300 cm. the rainfall should be well distributed throughout its growth period. The crop may tolerate an annual rainfall of 250 or 400 cm provided the field does not get flooded as water logging is hazardous for the crop at any growth stage. The maize needs bright sunny days for an accelerated photosynthetic activity and rapid growth of plants but this has to be associated with an abundant water supply failing which the crop will start wilting or withering. Prolonged cloudy period is harmful for the crop but an intermittent sunlight and cloud or rain is the most ideal for its growth. Rain free sunny days during flowering period favour better pollen dispersal vis-à-vis seed set. In Sikkim, one or two heavy winds occur just before the onset of rainy season (April end to May first week) which coincide with knee-high stage of the crop. plants growing in fertile soil will lodge. Local varieties are also susceptible to lodge. Therefore, proper earthing up is needed during knee-high stage.