First, the growth characteristics of Sophora alopecuroides
Bitter chrysanthemum contains many vitamins, and it has the functions of clearing away heat, resisting bacteria, diminishing inflammation and improving eyesight.
Sophora alopecuroides likes wet and water, is cold-resistant and afraid of drought. The suitable temperature for seed germination is 15 to 17℃, the seedling growth temperature is 12 to 20℃, and the plant growth temperature is 10 to 20℃. Bitter chrysanthemum needs fertile and loose sandy loam or clay, and has a great demand for water and fertilizer. Bitter chrysanthemum is suitable for planting in spring and autumn.
Second, high-yield cultivation techniques
1, land consolidation.
Choose the soil with sufficient sunshine, convenient irrigation, loose and fertile soil, deep and moist soil layer, good fertilizer and water, and ph value of 4.5 ~ 8.5.
It grows best in slightly acidic soil.
Fields or places near water sources at an altitude of 170-3200m. After the land is selected, the soil is refined and leveled, and an appropriate amount of farm manure is applied in combination with land preparation.
2. Variety selection.
The varieties of Sophora alopecuroides should be selected with excellent economic characters, such as Sophora alopecuroides, Holland Tianxiang, Sophora alopecuroides, and dog teeth. The weight of a single plant can reach about 500 grams, with strong adaptability, cold resistance, heat resistance, less pests and diseases, easy cultivation, good quality and appearance, and bitter taste. Varieties suitable for open field and greenhouse cultivation in spring and autumn.
3. Sow and raise seedlings.
Before sowing, the seeds should be treated, dried and sterilized for 5 hours, or soaked in warm water at 55 degrees Celsius for 20 minutes, taken out and dried. When preparing the soil before sowing, the decomposed farmyard manure 1500 kg is used per mu, and the fertilizer and soil are evenly mixed to make the border with a width of 100cm and a height of about 25cm. Pour enough water into the seedling bed, sprinkle seeds, and cover the seeds with 5 mm thick fine soil. Seedbed sowing amount is about 3 grams per square meter. The seedbed temperature should be kept at 15-20℃, and an arch shed can be covered on the border for regulation. When the seedlings grow to 2-3 true leaves, they will be divided into seedlings with a density of 6-8 cm square. After dividing seedlings, it is necessary to pay attention to watering the seedlings slowly for 2 to 3 times, and every other day. When the seedlings have 5-6 true leaves, they can be planted. Open-air row spacing is 35 to 45cm, plant spacing is 30 to 40cm, and the greenhouse should be properly densely planted.
4. Field management.
The temperature in the greenhouse should be controlled between 8 and 12℃ at night, and the soil should be kept moist at the seedling stage, and the water must be drained in time. When planting seedlings, it is necessary to replenish seedlings in time, remove old and sick leaves and weed in time. Generally, water should be poured twice in the slow seedling stage according to the situation, and the amount of water will gradually increase with the growth of seedlings. The soil should be kept moist in the peak growth stage, and the water should be properly controlled in the harvest stage. Fertilize according to the growth in the plant growth stage, and apply about 20kg of ammonium sulfate or about 0/000kg of decomposed farmyard manure per mu.