The fertilization of ginger is divided into base fertilizer and top dressing. Basal organic manure, cake fertilizer and fertilizer. The organic fertilizer is applied in combination with soil preparation before sowing. Generally, 5 to 8 squares of chicken manure are detoxified per acre, and the soil is rotatively cultivated after application. The application of cake fertilizer and fertilizer concentrates to the ditch means that the crushed cake fertilizer and chemical fertilizer are applied to the sowing ditch before sowing. In general, 75 to 100 kg of cake fertilizer per acre, 50 kg of nitrogen, phosphorus and potassium compound fertilizer or 25 kg of urea, superphosphate, and potassium sulfate.
In addition to the application of base fertilizer, three dressings are generally performed. The first time the “strong seedlings†are chased: When the seedling height is about 30 cm, and 1 to 2 branches are used, the first top dressing is performed. The topdressing fertilizer is mainly nitrogen fertilizer, and 20 kg of ammonium sulfate can be applied per acre. If the sowing date is too early and the seedling period is longer, fertilization can be performed 2 to 3 times with watering. The amount of fertilization is the same as above.
The second round of “turning fertilizerâ€: before and after the beginning of autumn, this is the turning point of growth of ginger, and also the turning point of nutrient absorption. Since then, the growth of plants has accelerated, and a large number of nutrients have accumulated to form product organs. Therefore, the demand for fertilizer and water The amount increases. In order to ensure the high yield of ginger, weeding with ginger fields before and after the beginning of the fall, the second top dressing. 70-80 kg of crushed cake fertilizer per acre, 3 to 4 squares of decomposed chicken manure, 50 to 100 kg of compound fertilizer, or 20 kg of urea, 30 kg of diammonium phosphate, 50 kg of potassium sulfate, on the side of ginger seedlings At the base of the plant, a fertilization ditch is opened at 15 cm, and the fertilizer is sprinkled into the ditch and mixed with the soil. Then, the soil is ditched, the soil is cultivated, and the soil is finally drenched.
The third time to pursue “Zhuang Jiang Feiâ€: In early September, when the ginger seedlings have 6 to 8 branches, it is also the rapid expansion period of roots and stems. According to the growth of the plants, the third time, the top dressing is called “Zhuang Ginger Fertilizer. ". Generally 25-30 kg of compound fertilizer per acre or 2.5 kg of ammonium sulfate and potassium sulfate. Fertilizers with high soil fertility and strong plant growth should have little or no nitrogen fertilizer to prevent stems and leaves from being long and affect nutrient accumulation.
Zinc fertilizer and boron fertilizer can usually be used as base fertilizer or top dressing. Zinc-deficient and boron-deficient ginger field, when applied to basal fertilizer, generally applies 1 to 2 kg of zinc sulfate and 0.5 to 1 kg of borax per acre, and is evenly mixed with fine soil or organic fertilizer. When sowing, it is applied to the sowing trench to mix with the soil. For topdressing and foliar spraying, 0.05 to 0.1% borax can be used for 50 to 70 liters per mu, spraying at the seedling stage, hair growth stage, rhizome expansion stage, or 800 g per gram of water applied per gram of zinc. Maikefeng 200 grams of large-grain boron, 4000 grams of the Federal Potash, both increase production and can prevent ginger rickets.
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