Chinese wild rye direct seeding method on saline-alkali land

Abstract

The invention provides a method for directly sowing leymus chinensis seeds on a piece of soda saline-alkaline land, which comprises ridge forming, planting and irrigation management. The method comprises the following steps of: A, seed treatment; B, land preparation; C, drip irrigation zone setting; D, sowing; and E, irrigation. After the sowing of the leymus chinensis seeds, the ridges are covered by films and the land is irrigated immediately, wherein the films are 1meter wide; the amount of water used for initial irrigation is three times of that of water used for regular irrigation, and for later irrigation; and the water amount is determined according to the actual water content of soil. The ground drip irrigation and film-covering combined method for directly sowing leymus chinensis seeds improves water utilization rate, reduces water evaporation and provides good germinating and growing conditions for the leymus chinensis through the combination of leymus chinensis growing and modern irrigation technology. The method uses a soil moisture content monitoring device to monitor the water content in the post management period and irrigates according to the monitoring data so as to ensure the growth of the leymus chinensis under the condition of desirable water content and to improve the growth and tillering of the leymus chinensis. The leymus chinensis is a perennial plant and has high tillering capacity. When the coverage rate of the leymus chinensis reaches 80 percent after direct sowing, the leymus chinensis is allowed to grow naturally. The method creates remarkable long-term benefits and is a new method contributing to the development of the leymus chinensis growing industry.

Description

technical field [0001] The invention relates to a direct seeding method of Leymus chinensis in soda saline-alkali land, and belongs to the technical field of saline-alkali land management and planting. Background technique [0002] Saline-alkali land is an important land resource for agricultural development and utilization. According to the second soil census in my country, the area of ​​saline-alkali land resources in China is nearly 100 million hm 2 , of which the modern saline-alkali soil area is about 37 million hm 2 , the residual saline soil is about 42 million hm2, and the potential saline soil is about 17 million hm 2 . Saline-alkali soil contains excessive salinity, toxic substances, excessive alkalinity and poor soil properties, which inhibit the growth of plants, making it difficult for plants to grow on saline-alkali soil, forming a large area of ​​saline-alkali wasteland, and the ecological environment is poor. But with the decrease of available land resour...

AI Technical Summary

Problems solved by technology

[0004] But Leymus chinensis mainly takes asexual reproduction in natural habitat, supplemented by sexual reproduction, its sexual reproduction speed is slow, and the emergence rate is low, which greatly affects the development of Leymus chinensis planting industry