The invention discloses a high-yield corn planting method belonging to the technical field of
agriculture,
forestry,
animal husbandry, hunting,
trapping and
fishing, and particularly relates to a corn planting method. The invention provides the high-yield corn planting method which is high in yield and is green and
pollution-free. The high-yield corn planting method comprises the following steps of (1) isolated planting:
sowing by stages is carried out since sweet corn and
waxy corn can be in out-crossing hybridization with common corn and grains of the sweet corn and the
waxy corn can easily change into grains of the common corn; (2) seed preparation: elite
hybrid seeds can be selected as the elite
hybrid seeds have good yield-increasing potential and are the high-yield basis of corn; appropriate elite seeds can be selected by combining ecological types of different regions; (3) seed
processing: appropriate seeds coated by a seed
coating agent can be selected before seeding according to a
local disease and pest occurrence regularity, or seed dressing
processing can be carried out on seeds by selecting related pest killing agents, disinfecting agents, micro-element
fertilizer and the like according to needs, so that the purposes of preventing diseases and pests and promoting the growth can be achieved; (4) land ploughing and
land preparation: the appropriate
tilling depth is 18 cm; the
tilling depth can be up to 20 cm for the land which is high in
soil fertility, thick in
tilling layer and large in basic
fertilizer application amount; otherwise, the tilling depth needs to be shallow; (5) seeding depth: generally, the appropriate seeding depth is 4 to 6 cm; but generally, the seeding depth is required
not to exceed 8 cm. Attention, a great number of ineffective tillers can be generated during a
seedling stage if the soil which is better in
soil moisture content and better in
fertility is subjected to too-shallow seeding.