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.
1. Watering ginger is hi wet and not drought tolerant, and it is usually suitable for watering after shallow earthworms. 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. The top-dressing ginger has a long growth period and requires a large amount of fertilizer, especially the amount of fertilizer needed in the middle and late period 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. The soil needs dark environmental conditions due to the growth of ginger rhizomes, so it should be repeated 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.
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