Simple and efficient method for planting alfalfa in heavy saline-alkali soil and special device of method

Abstract

The invention discloses a simple and efficient method for planting alfalfa in heavy saline-alkali soil. The heavy saline-alkali soil has the salt content of 1% w / w or more. A local microenvironment is formed on a ground surface of the heavy saline-alkali soil through a specific human intervention operation. The method comprises the following steps: shaping a low-salt soil moisture conservation microenvironment through a one-time operation. The shaped microenvironment has a characteristic of inhibiting accumulation of salt in the surface soiland an advantage of keeping low-salt planting relative to a periphery. The shaped microenvironment has a characteristic of inhibiting accumulation of salt in the surface soil and an advantage of keeping low-salt planting relative to a periphery. The invention also relates to a special device of the planting method. For highly heavy saline-alkali soil, no feasible improved planting method exists at present. A new technology researched and developed forms an important breakthrough in the technical field.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a method for planting alfalfa in heavily saline-alkali land and related special devices. Background technique [0002] As a high-quality forage widely planted in saline-alkali land, alfalfa can not only improve the yield of soil resources in saline-alkali land, but also improve saline-alkali soil. However, it is difficult to preserve alfalfa seedlings in heavily saline-alkali land, which seriously hinders the establishment and later production efficiency of alfalfa. The current alfalfa planting method emphasizes leveling the land before planting, which is widely applicable to soils with good water and salt conditions. Drilling is also a very good sowing method, which fully utilizes the law of soil water and salt migration, so that salt accumulates in high places, less salt returns in low places, and good moisture retention; however, it is difficult to ensure that t...

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Problems solved by technology

Drilling is also a very good sowing method, which fully utilizes the law of soil water and salt migration, so that salt accumulates in high places, less salt returns in low places, and good moisture retention; however, it is difficult to ensure that the soil in the entire ditch is flat, and there are still micro-topography in the ditch injustice

[0003] To sum up, the soil salinity in heavily saline-alkaline land is highly heterogeneous, and both leveling the land as soon as possible and furrowing can also play a good role, but in practice, there are problems of difficult operation and high standards

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