How to keep the seed of ginger? What are the technical points?

Ginger, also known as ginger, is a golden seasoning for daily cooking and is one of the indispensable seasonings in the kitchen. Eating more ginger can strengthen the spleen and stomach, but also dispel the cold, there are many delicious to the human body, so ginger is very popular with urban users. In the process of ginger planting, there are many steps involved, among which, many people are not very clear about how to keep ginger seeds. Let's take a look at the main technical points of ginger seed keeping.

1. Growth habits of ginger

1. Temperature

Ginger is a kind of vegetable plant that likes temperature but is not tolerant to cold. Ginger begins to germinate above 16 ℃, but the germination is very slow and the germination period is very long. The growth rate of buds at 22Mel 25 ℃ is suitable, and it is easy to cultivate strong buds. Under the condition of high temperature above 28 ℃, although the germination is fast, the buds are often weak and not fat enough. The suitable period of stem and leaf growth is 20 ℃ and 28 min. In the vigorous root tip growth period, in order to accumulate a large amount of nutrients, it is appropriate to maintain a certain temperature difference between day and night, about 25 ℃ in the day and 17 ℃ at night. The growth stopped below 15 ℃, and the stems and leaves withered when exposed to frost.

2. Lighting

Ginger is a light-loving and shade-tolerant crop, and the light requirements are different in different growth periods. Dark is required when sprouting, and medium strong light is required in seedling stage, but it is not resistant to strong light. Therefore, shading measures should be taken to create the shade of flowers in order to facilitate the growth of seedlings. However, in the prosperous period, because the population is large and the plants themselves shade each other, strong light is required. Zingiber officinale is not strict on the length of sunshine, and it can form rhizome under both long and short sunshine, but the yield of rhizome is high under natural light, and the yield is affected by too long or too short sunshine.

3. Moisture

Ginger is a shallow root crop, the root system is underdeveloped, can not make full use of deep soil water, the absorption is weak, and the protective tissue of leaves is not developed, water evaporation is fast, so it is not resistant to drought and strict requirements for water. Generally speaking, there is less growth and less water in the seedling stage, but a large amount of water is needed in the prosperous period. In order to meet the needs of its growth, it is appropriate to keep the soil moist all the time and keep the soil moisture at 70% and 80% of the maximum capacity in the field.

Ginger is not resistant to drought and extremely intolerant to waterlogging. Although it can survive under drought conditions, it has poor growth, a great decrease in yield, an increase in rhizome fiber and a deterioration in quality. Similarly, the soil moisture should not be too much, if the soil is stagnant water, light will slow germination and seedling emergence, poor root development, heavy will cause ginger blast, resulting in reduced or even no yield.

4. Soil and nutrition

Ginger is suitable for deep soil, loose and fertile soil and rich in organic matter. A fertile loam that is well ventilated and can be irrigated and drained and shows a slightly acidic reaction. Alpinia officinalis is not very strict on soil texture and has strong adaptability. It also had strong adaptability to soil acidity and alkalinity, and had no great effect on seedling growth in the range of pH 4-9. In the vigorous growth period of stems and leaves, the condition of pH5-7 is the most suitable, and the saline-alkali waterlogged land is not suitable for growing turmeric.

Second, how to keep seeds for ginger? What are the technical points?

1. Types of harvest

After the seed ginger germinates, the nutrients it contains are not completely consumed and do not rot, and they can still be collected back, which is called "collecting Niang ginger" or "stealing ginger". Niang ginger can be harvested at the same time when the new ginger is ripe, or it can be harvested alone during the growing period, when the seedling height is 15 cm ~ 18 cm and has 4-5 leaves. The middle and lower reaches of the Yangtze River were harvested from the Summer Solstice to Lesser Heat. The method of harvesting is to dig up some of the soil on the ginger, press the main stem and ramet of the ginger plant with one hand to keep the ginger from shaking, and dig out the ginger with a narrow knife or bamboo stick on the other. Pay attention to less digging and less root damage. Cultivate soil and fertilize immediately after harvest to promote growth. Compared with the seed ginger at the time of sowing, the recovered ginger generally lost 3%-6%, and more than 10%-30%.

2. Harvest tender ginger

The Yangtze-Huaihe River Basin began to harvest tender ginger from White Dew, and it was harvested in the Beginning of Autumn at the earliest. The earlier the harvest, the lower the yield. Tender ginger tissue contains more water, less spicy and low yield, only about 600 kg per mu (1 mu = 667 square meters).

3. Harvest ginger

Ginger is usually harvested when most of the stems and leaves begin to wither. At this time, the underground rhizome has been fully expanded, and the ginger left for seed should also be harvested at this time. The Yangtze-Huaihe River Basin was harvested during the period from Frosts Descent to the Beginning of Winter. Generally, the yield per mu can reach 1000 kg ~ 2000 kg, and the high yield plot can reach 3000 kg ~ 5000 kg.

4. Keep the seed

The old ripe ginger with high yield per plant, large pieces of ginger and no disease and insect pests should be selected for seed. The first half of the harvest, about the end of October to stop watering, roast seedlings, and dig out diseased ginger, harvest before the first frost. In order to increase the output, we should strive to harvest late without freezing damage. When the soil is harvested in sunny days, the ginger straw is cut flat at 2 cm ~ 3 cm away from the ginger block, that is, it is cut flat with the upper part of the central terminal bud of each ginger straw, so as not to damage the top bud, so as not to affect the sprouting of ginger next year. In addition, it is necessary to cut off the fibrous root and peel off the mother ginger. If the cellar can not be stored in time in case of rain, it can be dried indoors, about 30cm thick on the ground, and covered with moist fine sand 3cm ~ 6cm, to keep warm and humid, and then store when the weather turns warm.