How to manage ginger in the late stage? 5 key points to remember

SummaryFrequent light watering: water once every 7-10 days, and reduce watering during the rainy season. Balanced fertilization: nitrogen-potassium fertilizer, zinc sulfate, borax, etc. can be applied. Multiple hillings: hill up 2-3 times during the growing period. Disease and pest control: use Shengjiangbao, Jiangwensan, imidacloprid, Luba, etc. for control. Timely harvest: the suitable harvest period is mid-October.

1. Frequent light watering

1. Ginger prefers to grow in a moist environment and is not drought-tolerant. Generally, it is best to water after shallow hoeing and loosening the soil. If drought occurs after planting, the number of waterings needs to be increased, but flood irrigation should not be used.

2. September is the vigorous growth period of ginger rhizomes, so the water demand increases significantly. Generally, watering once every 7-10 days is appropriate. When there is more rain, water as little as possible. Watering can be done in the morning or evening, and try not to water at noon.

2. Balanced fertilization

1. Ginger has a relatively long growth period, so its fertilizer demand is relatively large, especially in the middle and late growth stages, which accounts for about 80% of the entire growth period. In early to mid-September, when the ginger seedlings have 6-8 branches, it is the period of rapid rhizome expansion. During this period, topdressing can be carried out appropriately according to plant growth, and this period is called “supplementary fertilizer.”

2. This topdressing can promote lush stems and leaves, also make ginger rhizomes expand rapidly, and at the same time prevent fertilizer deficiency in the late growth stage, which can lead to early senescence of stems and leaves and affect quality and yield. Generally, 20KG of nitrogen-potassium fertilizer can be applied per mu, and combined with topdressing, trace fertilizers such as boron fertilizer and zinc fertilizer can be supplemented in time.

3. Generally, 2kg of zinc sulfate and 1kg of borax can be applied as topdressing per mu, which helps improve the quality and yield of ginger. For plots with fertilizer deficiency, potassium dihydrogen phosphate can be sprayed on the leaves 2 times, which can significantly increase the late-stage yield.

3. Multiple hillings

1. Because ginger rhizomes need to grow in a dark environment, hilling should be done multiple times. Generally, hilling should be done 2-3 times during the growth process. The first hilling can be carried out during the major topdressing, with soil covering the farmyard manure as appropriate.

2. Be sure not to make it too thick, so as to avoid affecting the growth of later emerging seedlings. After 15 days, carry out the 2nd to 3rd hilling. The final hilling should form a ridge, and the rhizomes must not be exposed above the ground.

4. Disease and pest control

1. Ginger blast is a destructive disease during the ginger growth period, and it is also a major factor affecting ginger quality and yield. Generally, comprehensive control measures are mainly used, including crop rotation, digging drainage ditches, drainage and waterlogging prevention, or chemical control. Generally, Shengjiangbao, Jiangwensan, Luba, etc. can be used, with 1500-2000 times diluted solution for root irrigation.

2. If severely diseased plants are found, they should be removed in time, and lime should be used to mark the spot. After the ginger is harvested, the soil in that spot should be deeply buried and properly treated.

3. The main pests include ginger stem borers, ginger thrips, beet armyworm, etc. Generally, pest surveys should be carried out regularly, and pesticides should be applied in advance before major pest outbreaks. Generally, pyrethroid pesticides and imidacloprid, etc. can be used for spray control, once every 7-10 days.

5. Timely harvest

1. The suitable harvest period for ginger is around October 20-25. The southern region can appropriately delay by 3-5 days, and the eastern Hebei production area can appropriately harvest 7 days earlier. Harvesting at this time can reduce frost damage and also make full use of the golden period of late-stage yield increase in ginger.

2. Therefore, it is necessary to grasp the best harvest timing and not harvest too early. To facilitate storage and nutrient backflow, about 3cm of stems can be retained to promote nutrient backflow, and the selling timing should be flexibly determined according to market conditions.