Three key points for growing licorice
1. Before sowing, the seeds were treated with 60: 100 ℃ of water for 30 seconds, and then soaked in warm water for 1 day and night, the germination rate could reach 50%. If treated with concentrated sulfuric acid, when the seed coat blackens, rinse it in clean water immediately, then soak it in warm water, and sow the seed when it expands, the germination rate can reach more than 90%.
two。 Planting method ① can be sown in spring or summer. The sowing amount per mu is about 30000g, the sowing depth is 3cm, the row spacing is 50cm, and the seedling protection per mu should reach 7000cm. The seedlings were raised and transplanted with ②. Can be strip sowing or small bed sowing, increase the density, cultivate annual strong seedlings can be transplanted, spring or autumn can be planted. When planting, ploughing can be used to open ditches, according to row spacing of 60 cm, plant spacing of 15 cm to 20 cm, planting about 7000 plants per mu, planting depth to the rhizome and the ground is appropriate, irrigation after planting. Seedlings generally emerge 5-7 days after sowing, so there should be good soil moisture before sowing and no irrigation after sowing to avoid hardening. ③ planted roots. Will dig the fresh licorice rhizome, choose the bud eye cut 15-20 cm long, use the step plough to open the ditch, put the mother root vertically or obliquely in the ditch, cover the soil 10 cm, the cultivation time can be spring and autumn, irrigation after planting.
3. Field management licorice management is mainly to preserve soil moisture, the first year to ensure the growth of seedlings, 2 years later deep root, some soil moisture can be, generally the use of snow water can ensure normal growth. In the third year of mining, pay attention to preserving the mother root. After digging, level the ground, pour good water and promote the development of new seedlings.
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Key techniques for high-yield planting of licorice
1. Soil selection: sandy soil and sandy loam with deep soil layer, good drainage, high topography, high calcium content, barren beach and barren slope with soil micro-alkali and PH value between 78.5 can be cultivated. Plots with low-lying terrain and heavy soil should not be planted. 2. Variety selection
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How to plant licorice with high yield
1. Seedling transplanting 1. Deep, fertile and loose rotten soil or sandy loam should be selected in the nursery land. Apply 2000 kg of farm manure, 25 kg of superphosphate and 10 kg of potassium sulfate per mu as base fertilizer, ploughing more than 40 cm, leveling and raking fine, doing 110cm.
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