Sweet potato seedling cultivation method

Abstract

The invention belongs to the technical field of seedling cultivation, and in particular relates to a sweet potato seedling cultivation method. The method comprise the following steps of 1, processing sweet potato seeds; 2, establishing a seed bed; 3, arranging the sweet potato seeds; 4 managing the seed bed. The method is quick in seedling emergence, strong in emergent seedlings, free of diseases, early in rooting after the seeds are planted and quick in seedling return; the seed bed is long in seedling picking period, and seedlings can be collected in all seasons. The seedling cultivation method is large in seedling cultivation amount, one sweet potato seed can be cultivated into 38 sweet potato seedlings or more, the bud diameter is between 0.7cm and 1.1cm, and the yield of the sweet potatoes is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of seedling cultivation, in particular to a cultivation method of sweet potato seedlings. Background technique [0002] Sweet potatoes contain a large amount of basic nutrients such as starch, sugar, protein, and fat, and are rich in 18 kinds of amino acids necessary for the human body and rich in K, Ca, P, Fe and other mineral nutrients. The measurement and analysis results show that in 1 kg of fresh potatoes, It contains 400-600 mg of disaccharide, 262 mg of carotene, 252 mg of ascorbic acid, 11.4 mg of vitamin B and C, which is higher than that of wheat, rice, soybean, corn, etc. It is known as "healthy food", the World Health Organization (WHO) After 3 years of research, 13 kinds of the best vegetables were selected, and sweet potato ranked first. In 2013, the national potato crop output reached 33.2935 million tons, ranking first in the world, but only 24.46 kg per capita. Cultivation technology resear...

AI Technical Summary

Problems solved by technology

There are few large and long buds, medium and short short ones, and relatively more round buds; (2) Potato cube location factors, the distribution of potato cubes has more buds in the upper part, less in the middle, and no in the lower part, and the upper part is close to the ground light, temperature, air and other conditions Good and suitable for the formation of bud eyes; (3) temperature factor, the most suitable temperature for germination and emergence should be 35-38°C, the temperature requirement is relatively high, too high a temperature is easy to burn the sweet potato seedlings, and the low temperature is slow to raise seedlings, and the effect is not ideal; ( 4) Moisture factor, when the seed potato emerges, it needs to consume a lot of water, but too much water will easily cause the sweet potato seedlings to rot, and too little water will not be able to supplement the water needed for growth and development, which will affect the seedling effect; (5) Oxygen factor (6) Illumination factors, sufficient light can make sweet potato seedlings fully photosynthesize and promote growth, high temperature and low light are easy to form leggy seedlings and yellowed seedlings

[0005] Traditional methods of raising seedlings include septic tank hotbed seedlings, heated kang seedlings and sunbed seedlings. Among them, septic tank hotbed seedlings have late emergence, severe diseases, late planting, and low survival rate; More fuel, high bed temperature, high seedling density, thin seedlings, and late return of seedlings after planting; the advantages of the sunbed seedling raising method are small investment, simple method, strong seedlings, long seedling harvesting period, and quick return of seedlings after planting. Factors have a great influence, and under the condition of cloudy and rainy spring, it will affect the early emergence of seedlings.

[0006] To sum up, the key to high-yield cultivation of sweet potato is to obtain strong seedlings. Scientific seedling raising technology is the prerequisite for obtaining strong seedlings. Currently, the seedling raising methods used have their own advantages and disadvantages, but due to the diversity of methods, it is difficult to control, making The yield and quality of sweet potatoes are uneven. At the same time, due to the lack of attention to the various factors affecting the germination of sweet potatoes and the relationship between them during the cultivation process, local rotten beds, large-scale rotten beds, rotten roots, and burnt seedlings often occur. , which seriously affects the yield of sweet potato, in view of this, on the basis of the traditional seedling raising method, through a large number of field studies, through the improvement of the traditional breeding method and the coordination of various factors affecting the sprouting of sweet potato, in order to propose a The cultivation method of sweet potato with fast seedling emergence, strong seedling emergence, no disease, early rooting after planting, fast seedling return and long seedling harvesting period in the seedbed also proposes a new idea for the field of sweet potato seedling cultivation technology