Stevia rebaudiana cultivation method

Abstract

The invention discloses a stevia rebaudiana cultivation method. The stevia rebaudiana cultivation method is characterized by comprising the following steps that land selecting and soil preparation arecarried out, and a pH value of soil is in 6-7, loose and fertile soil contains more humus, and the soil not planted with stevia rebaudiana is used as the stevia rebaudiana cultivation land, preferably, 20 cm deep plowing is carried out, and 20-30kg of a nitrogen, phosphorus and potassium compound fertilizer is used as a base fertilizer per mu during plowing; some rotten manure is applied during soil preparation; during sowing, 2-3 mm deep furrows are gently drawn on the seedbed surface with a stick every 5-7 cm, and the seeds are sowed into the furrows, the seeds are gently patted and pressed, after 40-50 days, seedlings with 10 true leaves are selected for transplantation; after the seedlings with line spacing of 40-50 cm and row spacing of 17-20 cm are 10 cm high, the seedlings can be continuously topped and pinched; during the whole growth period, top dressing is carried out 2-3 times, and harvesting is carried out in time; when 50% of plants in the field are budding, harvesting issuitable and is carried out in late July to early August; harvesting in the morning or evening is prone to wiping the leaves; the leaves are dried in the sun on the day of harvesting and are packagedand sold in a film bag after being dried in the sun again on the second day; and dry leaves reach the water content (less than 10%) for safe storage, that is, the dry leaves are fragile when squeezedby hands. The stevia rebaudiana planted by the method has high sweetness, can yield 250 kilograms of the dry leaves per mu and has an income of more than 5000 yuan per mu.

Description

technical field [0001] The invention relates to a plant cultivation technique, in particular to a cultivation method of Stevia rebaudiana. Background technique [0002] For many years, people have been used to extracting white sugar, brown sugar, glucose, etc. from plants such as sugarcane. These sugars are nutritious and high in calories. Eating too much can have a certain impact on health. For example, children who eat too much are prone to tooth decay, and adults who eat too much can cause obesity and arteriosclerosis. Diabetics should strictly prohibit eating sugar. Later, people used artificial synthesis methods to obtain saccharin that is dozens or even hundreds of times sweeter than sugar and has low calories, which is used to make up for the shortage of white sugar. However, with the development of science. Saccharin has also been found to have adverse effects on the human body. In the 1970s, it was discovered that the glycosides extracted from stevia were about 3...

AI Technical Summary

Problems solved by technology

A lot of research has been done on the cultivation of stevia abroad, but there are still deficiencies in raising seedlings and improving leaf yield, which affects the economic benefits of stevia planting