Root irrigation water-saving cultivation method for plants in secondary saline-alkali land

Abstract

The invention discloses a root irrigation water-saving cultivation method for plants in a secondary saline-alkali land. The method belongs to the technical field of root irrigation water saving for plants in secondary saline-alkali lands. The method comprises the steps that the land is selected, animal rotten feces, sawn wood powder and desulfurized gypsum powder are applied on the land surface; land surface ploughing and irrigation are conducted to the saline-alkali land; base fertilizers are applied; trapezoid soil heaps and inversed trapezoid grooves are trimmed; punching and application of soil fertility fertilizers are conducted; drip irrigation equipment is embedded; and sowing, film covering, irrigation and dropper management are carried out in selected periods. The method disclosed by the invention has the advantages that operations are simple; a root irrigation technology is adopted; water use demands of the plants can be ensured; root irrigation is carried out to the plants in different growth periods of plants, and water saving can be achieved; soil looseness can be increased, and the soil hardening degree can be improved; water conservation, fertilizer conservation and temperature increase can be achieved; soluble salt ions can be rapidly leached into a plough layer; and through full film covering, soil salt can be restrained from gathering on the soil surface, the salt ions are not transported to the superficial soil with water, and superficial gathering of the salt can be controlled.

Description

technical field [0001] The invention relates to a root-irrigation and water-saving cultivation method for plants in secondary saline-alkali land, and belongs to the technical field of root-irrigation and water-saving for plants in saline-alkali land. Background technique [0002] China currently has 100 million hectares of saline-alkali land, most of which are distributed in arid and semi-arid regions such as North China, Northwest and Northeast China, mainly including Xinjiang, Qinghai, Gansu, Ningxia, Shaanxi, Inner Mongolia, and northeast Shanxi. Most of them belong to the Yellow River system, and the groundwater level is significantly affected by the Yellow River system. The groundwater level is high. The local drinking wells are generally around 20m, and the groundwater level is around 2m. The main soil types are saline soil and aeolian sand, which are developed on the parent material of aeolian sand. The juvenile soil contains a lot of soluble salts, the rainfall is lo...

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Problems solved by technology

[0004] The main purpose of the present invention is to solve the problems of severe water waste, fast evaporation, inability to effectively control salt surface accumulation, low plant growth and low yield when furrow irrigation technology is used for secondary saline-alkali plant planting, and to provide a secondary saline-alkali plant root Irrigation and water-saving cultivation method