1. Arch shed construction

The big ginger arch shed is mainly used to increase the temperature in the spring and autumn shed and reduce the summer light. Arch sheds are usually selected in areas with convenient transportation and complete water and electricity facilities. Ginger is usually planted in a slightly higher land, with good permeability, convenient drainage and irrigation, and slightly acidic loam or sandy loam. Soils with a soil pH of 5-7 are most suitable. The specifications of the arch shed are usually 60.0 ~ 100.0m long, 12.0 ~ 16.0m wide, and 3.0 ~ 3.5m high. Because the height of the arch shed has a greater effect on temperature and the growth rate of seedlings, the bottom slope of the arch shed should be large. Ditch ditches around the large arch shed to facilitate timely drainage of water during rainfall.

2. Initiation

Germination time is usually 20 ~ 30d before sowing. Rinse the ginger ginger after drying it for a while, flatten it on a non-woven fabric or a straw mat for 2d, and then arrange it into a turnover box or carton for sleepy ginger according to the pattern of “1 layer of ginger and 1 layer of paper”. The sleeper time is usually 7 ~ 10d, followed by a second drying ginger. Pick out weak, small, wounded, and sick gingers when you are in the sun or sleepy, and keep high-quality gingers that meet the conditions of gingers. The selected seed ginger is germinated on a woven non-woven fabric. Care should be taken during germination: the first is to control the temperature, the temperature is maintained at 21 ~ 25 ° C, the germination is too low, and the germination is too high; the second is to control the humidity, to prevent the ginger from dehydration and dryness during germination, it should be thickened For the covering, the third is to control the thickness. The thickness of ginger species usually does not exceed 40cm. After 25-30 days, ginger buds can meet the requirements for ginger planting. For ginger ction in arched sheds, it is better to choose ginger buds of about 1.5 cm. Ginger has 1 ~ 2 buds and its mass is 50 ~ 75g.

3. Seeding

(1) Lａnd preparation. After clearing the previous crop residues, clear the plant residues in time. Deep turning over 25cm years ago. Ginger is a hi-fat and water-loving crop. In addition to the three elements of nitrogen, phosphorus, and potassium, it also needs trace elements such as calcium, magnesium, sulfur, and zinc. Before the site preparation, 2500 square meters of organic fertilizer is applied as base fertilizer, and the special fertilizer for ginger is about 75kg. After fertilizing, turn over and ditch.

(2) Sowing. The sowing date of ginger is mainly determined according to product use, market needs and climatic conditions. The sowing time of ginger in the large arch shed is earlier than that of the open field and small and medium arch sheds, usually from late February to early March. Seeding follows the trenching and seeding methods. Mechanical ditching is used. The gap between the ginger ditch is 80 cm and the depth of the ditch is 12 cm. In order to promote the expansion of the stem, the bottom of the ginger ditch needs about 10 cm of loose soil. When planting, the plant spacing is about 25cm, and the planting volume of 667㎡ is 5500 ~ 6000 plants. When sowing, the buds are placed diagonally in one direction, and the burrs are moderately covered, covering a soil layer about 5 cm thick. Before emergence, spray carbendazim 50g on 667㎡. After spraying, set up a small arch shed in the large arch shed and lay a film for thermal insulation.

4. Field management

The growth period of ginger is usually divided into seedling stage, vigorous growth stage, and harvest stage. The vigorous growth period is the key period for the formation of ginger output.

(1) Regulation of fertilizer and water. The soil should maintain proper humidity and cannot be dried, and micro-spray once every 2 ~ 3d. In heavy summer, if there is heavy rain, drain the water in time, reduce the ground temperature, and reduce the incidence of ginger blast. Emergence and seedling stage generally do not water, when you must water, use a micro spray, wet lａnd can be. Ginger is a fertilizer-loving crop, but the root system has a weak ability to absorb fertilizer, so it should be applied less frequently. Fertilization is usually carried out simultaneously with watering. In the early stage, the main purpose is to improve the organic matter in the soil, and the main purpose is to apply organic fertilizer. In the middle stage, the main purpose is to grow trees and roots. The main purpose is high potassium fertilizer. Foliar spraying of potassium and nitrogen fertilizers is the main method.

(2) Temperature regulation. Ginger belongs to a temperature-loving crop. In early spring, two sheds were set up in a large arch shed, a small arch shed and a plastic film were laid in the second shed to increase ground temperature and promote seedling growth and root system development. As the temperature rises, the second shed and small arch shed are gradually removed. At the same time, combined with measures such as air release, the temperature in the arch shed is reduced. Ginger is also a shade-tolerant plant. Excessive light can inhibit the growth of ginger.

After entering May, build a sunshade net on the outside of the arch shed to reduce the light intensity and transmittance. In the "cold dew", the shading net should be removed, increasing the light, increasing the temperature of the arch shed, and extending the growth period of ginger. Shading creates a suitable light environment for the growth of ginger. The effect of raising seedlings in the early stage of ginger growth is very obvious, which has the effect of improving quality and yield.

(3) Soil ction. Cting soil is a key step in the high yield of ginger. Soil must be cted in time according to the growth laws and characteristics of ginger. The 10cm soil layer is the best depth for the swell of the ginger. When the ginger grows 2 ~ 3 buds, combined with topdressing, the soil is cted 2 ~ 3cm. After the ginger tubers start to appear on the ground, raise the soil 2 ~ 3cm. When the underground rhizomes of ginger grow rapidly, the soil is cted again, so that the ginger ditch becomes a planting ridge, and the original ginger ridge becomes a ginger ditch. The time span for arch shed ction is large, and autumn is the key time for increasing yield. After the fall, the temperature difference between day and night becomes large. Soil ction should be carried out in a timely manner.

Zhengzhou Delong Chemical CO., Ltd. is the production base of plant growth regulators in China, which established in 2009, specializing in offering plant protection products. If you have any question, contact us any time.