Trench sowing cultivation method of corns in drought area

Abstract

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.

Description

technical field [0001] The invention relates to a cultivation method, in particular to a furrow sowing cultivation method for corn in dry areas. Background technique [0002] In the arid and semi-arid areas of northern China, there is little rainfall in autumn and winter, and the soil dehydrates seriously, resulting in low soil moisture content and ground temperature in spring, and difficulties in corn seedling emergence, which are the main obstacles to corn production in this area; the application of conventional mulching cultivation techniques, although from To a certain extent, the ground temperature has been increased, and the effect of moisture conservation has been enhanced, but the problem of poor soil moisture in spring sowing has not been solved. The raised ridges are still not conducive to rain collection and moisture increase. . [0003] The rain-collecting and water-saving cultivation technology on the side of the corn film is a new production and cultivation mo...

AI Technical Summary

Problems solved by technology

[0002] In the arid and semi-arid areas of northern China, there is little precipitation in autumn and winter, and the soil dehydrates seriously, resulting in low soil moisture content and ground temperature in spring, making it difficult for maize to sow and emerge, which is the main obstacle to maize production in this area; the application of conventional mulching cultivation techniques, although from To a certain extent, the ground temperature has been increased, and the effect of moisture conservation has been enhanced, but the problem of poor soil moisture in spring sowing has not been resolved. The raised ridges are still not conducive to rain collection and moisture increase. The misplacement of hole planting is very serious, and there are still inconveniences in fertilization and weeding. .