The invention discloses a planting and field management method for Hongda tobacco varieties on mountain land autumn-flowering red earth. According to the method, seeding is performed within 40-50 days before
transplanting, plowing is performed after preceding crops are harvested, then the earth is made idle, or early-maturing crops are planted in the earth, and
land preparation is performed within 60-90 days before
transplanting;
transplanting is performed within 10-15 days before the rainy season, under-film transplanting is adopted, after transplanting, the earth is covered with mulching films, and holing is performed; 2.5 kg-3.5 kg of pure
nitrogen is applied per mu, oil cake type
organic fertilizer accounts for 45 %-55%, and 40 kg-50 kg of oil cake type
organic fertilizer is applied per mu to serve as base
fertilizer totally, 20 kg-25 kg of NPK-Zn-B compound
fertilizer is applied per mu, and evenly mixed with the
organic fertilizer to be applied as base
fertilizer, 10 kg-15 kg of
potassium sulfate is applied per mu, 75%-85% of the
potassium sulfate is applied in holes within 35-45 days after planting, and 15%-25% of the
potassium sulfate is applied through spraying within 45-55 days after planting; tobacco plants are topped two times, when center flowers blossom,
topping is performed for the first time, big branches are removed, then within 10-15 days,
topping is performed for the second time, and tobacco leaves of which the length is smaller than 50 cm, and all tobacco branches are removed; the tobacco leaves are harvested three times, 3-4 leaves are collected after the leaves on the lower portions become yellow and fall off, after 13-15 days, 3-4 leaves are then harvested, and the remaining leaves are harvested at a time after the leaves on the upper middle portions become yellow and fall off in a centralized mode. The method can be sufficiently adapted to the features of the mountain land red earth, promote early maturing and rapid flowering of tobacco seedlings and comprehensively increase the yield of the tobacco leaves and improve the quality of the tobacco leaves.