After the beginning of autumn, the weather was cool and entered a period of rapid expansion of ginger. This period has more demand for water and fertilizer, and more diseases and insect pests occur. This is also a critical period for prevention and control. It is very important to strengthen the management of ginger in the middle and later stages. Below, the relevant technical points are described below.

1. Watering: Ginger is wet and not drought tolerant. Generally, it is appropriate to water after shallow hoeing. In case of drought, the number of waterings should be increased, but flooding should not be allowed. September is the best period for the growth of ginger rhizomes, and the demand for water is obviously higher. Watering is suitable for 1 to 7 days, and little water is poured when there is a lot of rain. Watering time should be appropriate in the morning and evening. Try not to water at noon.

2. Top dressing: Ginger has a long growing period and requires a large amount of fertilizer. In particular, the amount of fertilizer needed in the middle and late stages of ginger accounts for about 80% of the entire growth period. After the beginning of autumn, combining the removal of weeds or the demolition of ginger sheds for top dressing requires adequate fertilizer, complete nutrition, and lasting fertilizer effect. In the north side of the ginger seedlings, 15 to 20 cm from the base of the plant, a fertilization ditch is to be opened. The depth is 10 cm, and 70 to 80 kg of decomposed bean cake or 500 kg of mature manure is added per mu, plus nitrogen, phosphorus and potassium. 30 kg of compound fertilizer, the fertilizer spread evenly in the fertilization ditch after the cover soil, then irrigated. In mid-September, when the ginger seedlings had 6 to 8 tillers, the rapid rhizome enlargement period was at this time. According to the growth of the plants, the top dressing could be applied as appropriate. Generally, 4 to 5 kg of nitrogen fertilizer is applied to Mushi, which is supplemented with boron fertilizer, zinc fertilizer and other trace fertilizers in a timely manner. Generally, 2 kg of zinc sulfate and 1 kg of borax are applied per mu, which has a very important effect on improving the yield and quality of ginger.

3. Earth: Because of the dark environmental conditions that are required for the growth of ginger roots, it is important to cultivate the soil several times. Generally 2 to 3 times of earth-cultivation, the first time the soil is used in large-scale top-dressing, and it is appropriate to cover the farmyard fertilizer with soil, not too thick, so as not to affect the growth. After 15 days, the second and third earths were cultivated. Finally, the earth was to be earthworms and the roots could not be exposed on the ground.

4. Disease prevention and pest management: Jiangyan disease is a devastating disease in ginger production, and it should be based on comprehensive prevention and control measures. Rotation can be used for rake, digging drainage ditch to prevent flooding, or chemical control, available Jiangbao, Jiang Yu San, Green Pa and other 1500 to 2000 times liquid dip, found the diseased plants in a timely manner, with the above liquid Soil treatment. The main pests are Ginger Aphids, Beet Armyworm, Ginger, etc. It is necessary to regularly observe the pests in a timely manner, and do a good job of prevention and control of chemicals before the outbreak occurs. It can be controlled by spraying with insecticides such as imazalil and imidacloprid, and it can be controlled once every 7-10 days.

5. Timing harvest: In the middle of our province, the best harvest time for harvesting ginger in Daejeon should be from October 20 to 25, and the southern part of our province can be delayed for 3 to 5 days. The northern producing areas such as Tangshan and Qinhuangdao can be properly Harvested one week earlier, at this time, harvesting ginger will not only freeze the ginger, but also make full use of the golden period of late-growth ginger production. Therefore, we must master the best timing for harvesting, and we must not harvest prematurely. For the sake of storage and nutrient return, we can leave about 3 cm of stalks to promote nutrient return.

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