Method for planting Suaeda salsa on serious saline-alkali soil by trickle irrigation in arid area

Abstract

The invention relates to a method for planting Suaeda salsa on serious saline-alkali soil by trickle irrigation in arid areas, and the method comprises the following steps: overlaying an irrigation facility in a heavy salinization soil environment; arranging hollow billet trickle irrigation zones in a mode of one pipe in one row; in a strip cropping mode, planting halophyte seeds on two sides of the hollow billet zone; dripping after sowing is finished to prevent seeds from being blown by wind; and combining with a water-saving trickle irrigation technology, causing soluble salt in the areas near the trickle irrigation billet trickle zone to transfer along with water or transfer to direction far away from the billet trickle by controlling the trickle irrigation flow so as to create a low-salt environment for halophyte seeds to germinate and young seedlings to grow, thereby planting the young seedlings. According to the method disclosed by the invention, inhibition on halophyte seed germination and young seedling growth by the heavy salinization soil environment can be overcome, a technical mode for developing the agricultural production on the common big rinsing salt improved saline-alkali soils can be broken through, and ecological economy halophyte is planted on a large scale so as to accumulate technical reserve for developing and utilizing the large-area saline-alkali soilwasteland in arid areas.

Description

Technical field: [0001] The invention belongs to the field of plant cultivation, and relates to the agricultural cultivation technology for large-scale planting of halophytes such as Suaeda salsa under the condition of drip irrigation. Background technique: [0002] my country has a vast area of ​​saline soil, and the reserve cultivated land resources are mainly saline soil. With the increase of population, the decrease of cultivated land resources and the increasingly prominent contradictions such as ecological deterioration, the development and utilization of salinized wasteland to alleviate the pressure of food security has attracted much attention. Salinized wasteland is a natural landscape in arid areas and an important reserve cultivated land resource. For a long time, people have used traditional technologies (building irrigation and drainage facilities, washing salt with water) to reduce the salinity content of the soil. This process is not only costly, but also As ...

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Problems solved by technology

Chinese Patent Application No. 200810017113.7 describes the method of planting in arid and windy desert saline-alkali environments, and Patent Application No. 200810017114.1 describes the method of sowing seeds with perforations in saline-alkali environments. These two methods are all proposed under the condition of no irrigation , using snowmelt water and rainwater to achieve seed germination and growth, with the purpose of establishing vegetation in desert habitats, it is not suitable for large-scale planting of economical halophytes

Patent Application No. 200810055057.6 describes the method of constructing an isolated area, washing salt with fresh water in the isolated area, and planting green seedlings to realize the method of planting and greening the original soil in the shallow water level heavily saline soil area. Although it can be used for the cultivation of halophytes, the adopted Technical measures have the following deficiencies in the development and utilization of saline-alkali land resources in arid areas: 1. The construction of isolation areas requires a large amount of engineering and is not suitable for large-scale agricultural production; 2. A large amount of fresh water is required to reduce the soil salinity in isolation areas

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