The invention discloses a trench
sowing cultivation method of corns in a drought area. The trench
sowing cultivation method comprises the following steps of carrying out
soil preparation and film mulching and increasing
moisture before winter, applying a
fertilizer and seeding at the beginning of spring, managing at the
seedling stage and the middle term, and managing and harvesting at the later stage. In comparison with the regular film mulching cultivation technology, the novel technology has different
soil preparation and film mulching time, the annual film mulching cultivation in a furrow starts after harvesting preceding
crop (in autumn), film mulching is timely carried out when
soil preparation in rain, hole
sowing is carried out along the furrow in spring, in comparison with sowing, the film mulching is ahead of time for 5-7 mouths, rainfall in a non-
growing season can be stored for a
crop growth season, so that the water
desorption of soil in autumn and winter is effectively reduced, the temperature of the soil is improved, and soil
nutrient is improved to be effective for creating good soil environment for growth of the corns; after many-year experiments, the result shows that in comparison with sowing in spring, by adopting the furrow film mulching cultivation, the
moisture content of the soil, which is 0-20 cm under a film, is improved by 6.5-11.5%, the temperature of the soil, which is 5 cm under the film, is improved by 2.5-3.0 DEG C, the
yield rate of the corns is improved by 12-25.8%, and the trench sowing cultivation method has better soil
moisture conservation, warming and yield increase effects.