A method for cultivating shepherd's purses at low temperature and at high altitude

Abstract

The invention provides a method for cultivating shepherd's purses at low temperature and at high altitude. The plant cultivating method comprises the steps of (1) soil selection and treatment: selecting planting land having an average sun light exposure time of more than 8-10h during late spring and early summer; (2) seed treatment: soaking seeds in water at the temperature of 20-25 DEG C, soaking the seeds in a growth accelerator, and mixing the seeds with wet soil fine powder at a mass ratio of 1:10; (3) seedling culture: scattering the treated seeds on the land uniformly for seedling culture; (4) topdressing and harvesting: after each seedling grows two leaves, performing topdressing, killing pests with pesticides and harvesting shepherd's purses thoroughly after late autumn and early winter. The growth accelerator can promote germination of the seeds, can prevent the seeds from being frostbitten in high-altitude and low-temperature regions, and can guarantee the rate of emergence. Shepherd's purses cultivated with the method are high in yield and high in nutritional value.

Description

technical field [0001] The invention relates to the technical field of plant cultivation, in particular to a method for cultivating shepherd's purse at high altitude and low temperature. Background technique [0002] Shepherd's purse is a year-old or biennial herb. It likes warmth but has strong cold resistance. It grows on hillsides, fields and roadsides. Shepherd's purse is mild in nature, as long as there is enough sunlight and the soil is not too dry, shepherd's purse can grow. Shepherd's purse is not strict in the selection of soil, but it is better to cultivate in fertile and loose soil. Originating in Eastern Europe and Asia Minor, it is common throughout the world. Mainly distributed in temperate regions of the world. It likes warmth but is cold-tolerant. It grows wild in the field and can also be cultivated artificially. For artificial cultivation of shepherd's purse, sandy loam soil with high terrain, convenient drainage and irrigation, loose soil and fertile s...

AI Technical Summary

Problems solved by technology

[0003] At present, shepherd's purse is mainly planted in greenhouses in plateau areas. However, due to the high temperature in greenhouses, insufficient light, and high nitrate content in vegetables, long-term consumption will cause chronic or acute poisoning, and insufficient photosynthesis of vegetables. Vegetable chlorophyll, vitamin C, sugar content Insufficient content, at the same time, the ventilation in the greenhouse is not good, the water evaporation on the surface of the leaves in the vegetables is reduced, and the mineral elements absorbed from the soil are correspondingly reduced, so that the mineral nutrient content of the vegetables is insufficient, and the growth environment of the greenhouse makes it difficult for harmful substances to be distributed. , Harmful substances in vegetables are easy to exceed the standard