Corn near stubble minimal tillage drought resisting planting method

Abstract

The invention discloses a corn near stubble minimal tillage drought resisting planting method and particularly relates to a corn near stubble minimal tillage drought resisting planting method applicable in northern semiarid areas with sand wind, which is a corn protective tillage method. The corn near stubble minimal tillage drought resisting planting method comprises: keeping 20 to 30 centimeter stubbles when the corn is harvested in the fall in a previous year, wherein the stubbles are not turned; digging an 18 to 20 centimeter deep fertilizing furrow in a ditch between each two ridges by using a furrow plow or an opener, and applying urea and water-retaining agent in the furrows according to ratios of 380 to 450 kg per hm<2> and 30 kg per hm<2> respectively; and sowing corns in the furrows directly and near the stubbles row by row, making the sowing furrows between the fertilizing furrows and the stubbles left in the previous year, applying diammonium phosphate and a ternary compound fertilizer as seed fertilizers at the same time according to a ratio of 150 kg per hm<2>, performing field management, and harvesting corns in fall, wherein 20 to 30 centimeter high stubbles are left and not turned. The planting method of the invention can reduce soil wind erosion, protect environment and improve the drought-resisting and stable-yielding performance of crops.

Description

technical field

[0001] The invention relates to a corn planting method, in particular to a corn stubble sticking, less-tillage and drought-resistant planting method suitable for sandy and semi-arid regions in the north, and is a corn protective tillage method. technical background

[0002] my country is one of the countries with the most severe wind and sand hazards in the world. According to the third national desertification and sandification monitoring data provided by the State Forestry Administration, the total area of ​​desertified land in the country is 2.6362 million square kilometers, accounting for 27.46% of the total land area. Among them, the area of ​​desertified land is 1.7397 million square kilometers, accounting for 18.12% of the total land area. Desertified land is mainly distributed in the vast arid and semi-arid areas in northern my country. Aeolian desertification, also known as sandy desertification, is the most important type of desertification in my ...

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