1. Temperature: Ginger is originally produced in tropical my country and East India. It likes warmth in nature, and the growth of rhizomes (ginger pieces) requires higher temperatures. Germination can only take place above 16-18°C. Ginger grows rapidly at 20-27°C. The monthly average temperature is 24-29°C, which is the most suitable for rhizome meristemization. It stops growing below 15°C, and germination is still not hindered when it reaches 40°C. But below 10 ℃, ginger pieces are easy to rot.
2. Illumination: Ginger is resistant to shade but not to strong sunlight, and the requirements for the length of sunshine are not strict. Therefore, when cultivating, shade sheds should be set up or intercrops should be used for proper shade to avoid strong sunlight.
3. Moisture: The root system of ginger is underdeveloped, and its drought and waterlogging resistance is poor, so the requirements for water are particularly particular. During the growth period, the soil is too dry or too wet, which is not good for the growth and expansion of ginger, and it is easy to cause disease and rot.
4. Soil nutrition: Ginger likes fertile and loose loam or sandy loam. It will not grow well in sticky and humid low-lying land, and it will not grow well in barren land with poor water retention. Ginger needs the most potassium fertilizer, followed by nitrogen fertilizer and the least phosphorus fertilizer.
1. Preliminary preparation
In the early stage, the soil is generally selected for cultivation. There is a detail in the selection of this piece that everyone should give priority to choosing the ginger with a large number of seedlings when it meets the requirements of thick and thick ginger, complete appearance, and clear sections. Many people think that there are few ginger buds, and the divided seeds are large and easy to feed. In fact, such ginger seedlings are far less vigorous than those with many buds. In the field of soil cultivation, many people just clean up the grass and pile up some fertilizer, thinking that it will be ok.
In fact, it is best to dry the pulled out grass and then bury it back in the soil, because the fertility provided by the decay of the grass itself is the most suitable for this piece of soil. Then trim the soil into strips, apply fertilizer about 5 cm below the soil, and the one with strong sand is the best.
2. Planting and maintenance
Ginger is a kind of crop that likes warmth and resists strong light, so the soil must be fertile. When the weather is too cold during planting, you can cover some straw. Generally, the ginger pieces are buried 3-4 cm deep in the soil, and do not touch the fertilizer. The planting amount per mu is about 300 catties, and the spacing is about 15-20 cm. The whole process needs to keep the soil moist to a certain extent. Secondly, pay attention to observation after germination. Generally, if the growth is not as good as normal, top dressing is required. Under normal circumstances, topdressing starts at about 10 cm after the growth of ginger seedlings.
3. Field management
Pay attention to temperature control every day. When the direct sunlight is too strong, it is best to add shelter to the field. Generally, 4-6 times of topdressing is required in the production process, depending on the fertility of the local soil.
The second is to pay attention to loosening the soil, generally loosening once every three months or so, and the distance between loosening the soil and entering the soil is about 4 cm. You don’t have to worry too much about weeds, you just need to clean up some larger grasses, especially the creeping weeds, and other small grasses will not threaten the growth of ginger because of their shallow root systems.
4. Matters needing attention
The disease most likely to occur in ginger planting is ginger blast, which can generally be prevented by irrigating along the roots with 70% dexon. In the area of insect pests, ginger borers are prone to appear, and should be treated with 90% trichlorfon powder 1000 times solution in time after discovery.
When it is found that the effect is not good, the plants should be removed in time to avoid greater losses. After harvesting, the collected ginger leaves must not be left in the soil, which will increase the chance of disease in the second year. You can symbolically plant a little after harvesting to absorb some remaining insect pests and disease factors to reduce the probability of disasters in the second year. Generally, one plant is planted at 1-2 meters, and those that absorb diseases can be discarded according to the situation.