The latest culture method of Ichthyophora japonica

Ji goldfish grass is a biennial herb of the genus Scrophularia of Scrophulariaceae, also known as willow piercing, small goldfish, Moroccan willow, etc., the plant height is about 30 cm, and the flower color is red, yellow, white, snow blue, cyan, etc., flowering from 4 to 6 months, can be cold-resistant, not resistant to extreme heat, requires fertile soil and good drainage, can be self-sown, can be used as flower bed and border edge material, can also be used as pot ornamental.

The Propagation method of Artemisia angustifolia

1. Sowing and reproduction: sowing and reproduction sowed from late September to early October, the seedling bed was flat and fine, the seeds were mixed with fine sand and evenly sowed into the seedbed, covered with Reed curtain for shade, sprayed water evenly before the seeds were unearthed, kept the soil moist, and germinated cotyledons two weeks later. Pay attention to the seedlings during the breeding period, which can make the seedlings grow stout. Pick the heart in time when the true leaf grows 5-8 pieces. There are many lateral roots, so it is easy to transplant, and it should be transplanted once when it grows to 2-3 branches.

2. Cutting propagation: cutting propagation is usually combined with heart-picking work, taking the sturdy, disease-free top tip as cuttings, and cutting directly with the top tip. The optimum temperature for rooting of cuttings was 18 ℃ ~ 25 ℃, which was lower than 18 ℃. It was difficult and slow for cuttings to take root, which was higher than 25 ℃. The cuttings were easily infected and rotted by bacteria, and the higher the temperature was, the greater the proportion of rot was. When there is a low temperature after cutting, the main measure of heat preservation is to wrap the flowerpots or containers used for cutting with thin film.

Pot management of goldfish grass

1. On the basin: when the seedlings are installed in the basin, put a coarse-grained matrix or ceramsite 2cm thick at the bottom of the basin as a filter layer, sprinkle a layer of fully mature organic fertilizer as base fertilizer with a thickness of about 1cm to 2cm, and then cover it with a layer of substrate, which is about 1cm thick, and then put in the plant to separate the fertilizer from the root system and avoid burning roots. The substrate for potting can be one of the following, vegetable garden soil: slag = 3:1, or garden soil: medium coarse river sand: sawdust (dregs) = 4:1:2, or one of paddy soil, pond mud, and rotten leaf soil.

2. Watering: after watering the basin, pour water once and keep it in a shady environment for a week. When transplanting the seedlings, first dig the planting hole, sprinkle a layer of organic fertilizer at the bottom of the planting hole as the base fertilizer (base fertilizer), the thickness is about 46.6 cm, and then cover a layer of soil and put it into the seedlings to separate the fertilizer from the roots and avoid burning roots. After putting it into the seedling, backfill the soil, cover the root system, and trample the soil with your feet and water it once.

3. Pruning: in the process of flowering, cut off the residual flowers with three leaves, which can prolong the flowering period.

4. Coring: two coring is generally carried out before flowering to promote the germination of more flowering branches. after one to two weeks on the pot, or when the seedling is 6cm tall and has more than six leaves, remove the top tip and retain the lower 34th leaves to promote branching. After 3-5 weeks of the first coring, or when the lateral branch grows to 6-8 cm long, the second coring is performed, that is, the top tip of the lateral branch is removed and the 4 leaves under the lateral branch are retained. After two coring, the plant type will be more ideal and the number of flowering will be more.

Culture and management of Jijin fish grass

1, humidity: like the dry air environment, overcast and rainy days are too long, easy to be infected by bacteria. For fear of rain, keep the leaves dry at night. The optimum relative humidity of the air is 40-60%.

2. Temperature: like cool climate, avoid extreme heat, frost-resistant. The temperature in winter is not very strict, as long as it is not subject to frost, it can survive the winter safely. It died when the temperature was more than 30 ℃ in late spring and early summer, and the most suitable growth temperature was 15-25 ℃. Try to sow seeds in autumn and winter to avoid high temperatures in summer.

3. Lighting: in late autumn, winter and early spring, because the temperature is not very high, it is necessary to give it direct sunlight to facilitate its photosynthesis and the formation of flower buds, flowering and fruiting. If you encounter hot weather in summer, you need to shield it from about 50% of the sun. For indoor maintenance and viewing after flowering, it should be placed near the southeast doors and windows in order to prolong the flowering period and increase the number of flowers as much as possible.

4. Fertilizer and water: like other grass flowers, they require more fertilizer and water, but they are most afraid of applying fertilizer indiscriminately, applying concentrated fertilizer and partial application of nitrogen, phosphorus and potash, and are required to follow the two principles of "frequent application of light fertilizer, less and more times, complete nutrition" and "dry and wet, dry and thoroughly, water or water", and after fertilization, leaves and flowers should be kept dry at night:

5. Autumn: after the sowing seedlings have been restored for a period of time, the management of fertilizer and water should be kept up quickly. Fertilizer and water management cycle according to the order of → → clear water → clear water, the interval period is about 1 to 3 days

6. Winter: although it continues to grow, the low temperature will slow down its growth rate, do not require much fertilizer and water, and even control fertilizer and water. Fertilizer and water management according to Huabao → clear water → clear water → Huabao → clear water → clear water cycle, the interval period is about 4-7 days, watering time as far as possible in sunny days when the temperature is high at noon.

7. Spring: after the temperature rises, the growth recovers rapidly, and gradually enters the flower bud differentiation stage and flowering stage, which requires a lot of fertilizer and water. Fertilizer and water management cycle according to the order of Huabao → clear water → Huabao → clear water, the interval period is about 2-4 days, the interval period is shorter in sunny or high temperature days, longer or unwatered in rainy days or low temperature periods. After entering the fruiting stage, stop the supply of fertilizer.