Seedling cultivating method for improving salt mist resisting ability of cerbera manghas

Abstract

The invention discloses a seedling cultivating method for improving salt mist resisting ability of cerbera manghas, wherein the method comprises following steps: select the seeds that are produced by nursery stocks locally growing on seaside, and perform initial-stage salt-resisting exercise beginning from the soaking period of the seeds; adopt salt solution with low concentration to synchronously perform soil salinity resistance training and salt mist resistance training to the nursery stocks beginning from the seedlings producing with 5-10 leaves to the seedlings with height of 1m; change large size nutrient bags after the height of the seedlings arrive at 1m, and enhance the intensity of synchronously performing soil salinity resistance training and the salt mist resistance training to the nursery stocks within a year of planting with the large size nutrient bags and four months before finishing the nursery stage. Through the above three stages of training, the survival rate and the growth vigor of the cerbera manghas planted along the coastal areas are as good as the cerbera manghas planted in inland areas. In the seed soaking stage, the germination rate of the seeds, the survival rate of the nursery stocks during the seedling planting period, and the survival rate of the nursery stocks during the big seedlings planting period are all within the range of 90-95%; and the survival rate of the big seedlings planted along the coastal areas after the big seedlings come out of the nursery stage is more than 95%.

Description

technical field [0001] The invention relates to a seedling raising method for sea mango, in particular to a seedling raising method for improving the salt spray tolerance of sea mango. Background technique [0002] Salt spray refers to a dispersion system composed of salt-containing tiny droplets in the atmosphere. Salt spray is easy to adhere to the leaves of seedlings and cause great damage to seedlings. It is easy to produce dry yellow leaves and yellow spots, resulting in morbid and serious seedlings. Will cause the seedlings to die. The damage of salt spray in coastal areas is much higher than that in inland areas. Therefore, when planting garden seedlings in coastal areas, it is necessary to consider the salt tolerance of plants and the salt spray tolerance of seedlings when selecting seeds. The soil salt tolerance and salt spray tolerance of the existing coastal seedlings are basically the result of natural survival. The result is a small number of plants and a varie...

AI Technical Summary

Problems solved by technology

When planting seedlings in coastal areas, especially in southern coastal areas of my country, it is necessary to consider not only the salt tolerance of the plants, but also the salt spray tolerance of the plants when selecting species. Sea mango has good soil salt tolerance, but its tolerance The ability of salt spray is low. When sea mangoes are planted in coastal areas, especially the coastal areas in southern my country, the seedlings often grow poorly or even die due to the attack of salt spray.