Sedum aizoon and potato interplanting method used in saline alkali soil

Abstract

The invention provides a sedum aizoon and potato interplanting method used in saline alkali soil. The sedum aizoon and potato interplanting method includes the steps of potato planting, sedum aizoon seedling culturing and sedum aizoon and potato interplanting, wherein wide-line ridge culturing is adopted for potatoes, the line spacing is 85 cm, and the row spacing is 20 cm; two rows of sedum aizoon are planted between the two ridges of the potatoes, the line spacing of the sedum aizoon is 25 cm, the hill spacing is 15 cm, 2 to 3 strains of sedum aizoon are planted in each hill, and the distance between the potatoes and the sedum aizoon is 30 cm. The sedum aizoon and potato interplanting method has the advantages that the survival rate of the sedum aizoon is 99.5%, the annual output of the sedum aizoon reaches 7500 kilograms per mu, the survival rate of the potatoes is 91.7%, and the annual output of the potatoes is 2360 kilograms per mu; the soil is improved effectively, after the sedum aizoon is planted for one year, the pH value of the soil is 6.8, the soil salt content is 0.13%, the total soil pore space rate is 54%, the soil bulk density is 0.96 g / cm<3>, and the effective nitrogen content in the soil is 40 mg / kg.

Description

technical field [0001] The invention relates to a method for interplanting lettuce and potatoes in saline-alkali land, and belongs to the technical field of saline-alkali land biological improvement. Background technique [0002] Saline-alkali land is a huge potential resource, and the development and utilization of saline-alkali land is one of the important measures to expand the area of ​​cultivated land and further develop agricultural production. There are about 1.5 billion mu of various saline soils in my country, accounting for 26.3% of the world's saline soil area. The area of ​​saline-alkali land in coastal and inland areas is relatively large, and most of the saline-alkali land has been waiting for development. [0003] Planting saline-alkali-tolerant plants in saline-alkali land is an effective method to control saline-alkali land, but the utilization rate of saline-alkali land is low, the economic benefits of planting plants are not significant, and the improvemen...

AI Technical Summary

Problems solved by technology

[0008] (1) Planting celery in moderately saline-alkali land that is higher than celery can tolerate saline-alkali, the survival rate of celery is low, and the yield is low;

[0009] (2) Potatoes are not resistant to salt and alkali, and can hardly survive in moderately saline-alkali soil;

[0010] (3) In the prior art, there are no reports of planting cabbage and potatoes in the middle of saline-alkali land