Four points of ginger management in the middle and late stages

Watering ginger is moist but not drought-tolerant. Generally, it is advisable to water it with a shallow hoe to loosen the soil. In case of drought, the frequency of watering should be increased, but flooding is not allowed. September is the best period for the growth of ginger rhizomes, and the demand for water is obviously higher. Watering should be done once every 7 to 10 days, and water less when there is more rain. Watering time should be in the morning and evening, and try not to water at noon.

Topdressing ginger has a long growth period and requires a large amount of fertilizer, especially in the middle and late growth period of ginger, which accounts for about 80% of the entire growth period. After the beginning of autumn, combined with pulling up weeds or removing ginger sheds for top dressing, it requires sufficient fertilizer, comprehensive nutrition and lasting fertilizer effect. On the north side of the ginger seedlings, open a fertilization ditch 15-20 cm from the base of the plant, with a depth of 10 cm, apply 70-80 kg of decomposed bean cake or 500 kg of dry decomposed manure per mu, plus nitrogen, phosphorus, and potassium ternary compound fertilizer 30 kg, spread the fertilizer evenly on the fertilization ditch and cover the soil, and then water it thoroughly. In early and mid-September, when the ginger seedling has 6 to 8 branches, it is the period of rapid rhizome expansion. According to the growth of the plant, top dressing can be carried out as appropriate, which is called "complementary fertilizer". This top dressing on the one hand promotes the luxuriant stems and leaves, and makes the ginger rhizomes expand rapidly; on the other hand, it can prevent defertilization in the late growth period, which will lead to premature senescence of stems and leaves, which will affect the yield. Apply 4 to 5 kg of nitrogen fertilizer per mu. Combined with top dressing, timely supplement of micro-fertilizers such as boron fertilizer and zinc fertilizer. Generally, applying 2 kg of zinc sulfate and 1 kg of borax per mu is very important for improving the yield and quality of ginger.

Ginger blast is a devastating disease in ginger production, and it is also a major factor affecting ginger production. Comprehensive prevention and control measures should be taken as the main measures. Rotation and stubble replacement can be adopted; drainage ditches should be dug to prevent waterlogging; diseased plants should be removed in time and marked with lime. After the ginger is harvested, the soil should be buried deep. The main pests are ginger borer, beet armyworm, ginger thrips, etc. The pest situation should be observed regularly and timely, and chemical control should be done before the outbreak. It can be controlled by spraying with imidacloprid or abamectin, once every 7-10 days.

Harvest at the right time In the central part of Hebei Province, the best harvest time for ginger planting in the open field should be October 20-25. Tangshan, Qinhuangdao and other Jidong regions can be harvested 1 week earlier. At this time, the ginger will not be frostbitten. It can also make full use of the golden period of late ginger production increase. Therefore, it is necessary to grasp the best harvest timing and not to harvest too early. To facilitate storage and nutrient return, about 3 cm of stalks can be left to promote nutrient return.

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