Maintenance methods of evening primrose

Evening primrose is a species of evening primrose of willow family, and it is also a very important nutritional medicine discovered in this century. The medicinal value of evening primrose is very high, and because evening primrose also blossoms at night, it also has the reputation of "night incense". Now evening primrose is often used to decorate the night scene, with gardens, courtyards and other greening.

Evening primrose

Evening Primrose is a perennial herb of Willow Leaf Family, which is often cultivated as 1-2-year-old flowers. Plants erect or obliquely upward, less branched, with coarse long hairs. Lower leaves linear-oblanceolate, cauline leaves lanceolate, sessile. Single flower axillary in the upper middle of the branch, yellow flowers, open in the evening to night, with fragrance. The upper part of the fruit is often thickened. The florescence is from July to September.

Evening primrose has strong adaptability, lax requirements on soil, cold tolerance, drought tolerance, barren tolerance, like light, avoid stagnant water, vine flowering needs a certain low temperature stimulation.

Evening primrose courtyard cultivation in the ventilated and bright place, loose, fertile, well-drained sandy soil section, the best performance, can also be potted on the balcony to watch, in the moonlight of the quiet night, bursts of fragrance is refreshing. Evening primrose has strong self-sowing ability, and its self-sowing seedlings can grow every year and blossom continuously after once planting.

The cultivation method of evening primrose Evening Primrose is a perennial herb of Willow Leaf Family, which is often cultivated as 1 ~ 2-year-old flowers. Plants erect or obliquely upward, less branched, with coarse long hairs. Lower leaves linear-oblanceolate, cauline leaves lanceolate, sessile. Single flower axillary in the upper middle of the branch, yellow flowers, open in the evening to night, with fragrance. The upper part of the fruit is often thickened. The florescence is from July to September. Evening primrose and epiphyllum open at night, hence the name "night incense", pleasant aroma, suitable for decorating the night scene, with other greening materials for gardens, courtyards, flower beds and roadside greening. Evening primrose has strong adaptability, lax requirements on soil, cold tolerance, drought tolerance, barren tolerance, like light, avoid stagnant water, vine flowering needs a certain low temperature stimulation. Evening primrose courtyard cultivation in the ventilated and bright place, loose, fertile, well-drained sandy soil section, the best performance, can also be potted on the balcony to watch, in the moonlight of the quiet night, bursts of fragrance is refreshing. Evening primrose has strong self-sowing ability, and its self-sowing seedlings can grow every year and blossom continuously after once planting. How to raise evening primrose? Culture methods and matters needing attention of evening primrose

Evening primrose, also known as mountain sesame, wild sesame, evening grass and so on, is a plant of evening primrose of willow family. Evening primrose is a common medicinal plant in China, which has the effects of dispelling rheumatism and strengthening muscles and bones. At the same time, the flowers of evening primrose are beautiful and have high ornamental value. So, how to raise evening primrose? The breeding methods and matters needing attention of evening primrose are introduced as follows.

Picture: evening primrose

I. Culture methods of evening primrose

1. Land preparation and selection: Evening Primrose is strong, cold-tolerant, drought-tolerant, barren, light-loving and waterlogging-resistant. Bean stubble with fertile soil and good drainage should be selected, and melon stubble can be planted continuously. However, Evening Primrose can not be planted in plots with herbicide residues such as chlorosulfuron, dichlorosulfuron, Pustilon, and Guangmianling. Soil preparation bean stubble and miscellaneous stubble can be raked directly and ridged in autumn.

two。 Sowing time: sowing can be sowed in both spring and autumn, and the autumn sowing period is from mid-October to before freezing. If winter snow is heavy, autumn sowing is better than spring sowing, winter snow is easy to cause lack of seedlings and broken strips. Spring sowing can be carried out before sowing wheat and when the soil freezes for 2-3cm. Because of less sowing quantity, 60 kg diammonium per hectare is used as filler; if not, a certain amount of dry sawdust or fried wheat and rape can be added for sowing, sowing 1-2cm in depth and timely after sowing. The amount of seeds per hectare is 6 kg, and the seedling protection is 40-500000 plants per hectare. The density of sowing should not be too small, otherwise there will be branches and the maturity period will be inconsistent.

3. Field management: seedlings are very similar to weed seedlings before the expansion of the second pair of true leaves, so they can not be ploughed and weeded, but only after the second pair of true leaves are unfolded. When the seedlings grow to 5 Mel and 6 leaves, Gramineae weeds can be used to kill the weeds. During the growth period, 2 times of ploughing hoe and 2 times of intertillage should be carried out, the shovel must stop before flowering, and the first ploughing hoe and middle ploughing should be carried out when the seedlings cover the ridge. Two artificial weeds were pulled out in late July and early August, so that there were no weeds exceeding the plant height of evening primrose in the field.

Picture: evening primrose

4. Evening primrose diseases and insect pests: after the prevention and treatment of erosion disease, the root of the plant gradually changed color and erosion, the leaves wilted and dried up, and then the whole plant withered. Prevention and control methods: 1% lime water can be used, or 1500 times of 50% topiramate can be used, or 1000 times of 75% chlorothalonil can be irrigated.

5. Harvest: evening primrose is an infinite inflorescence, the fruit continues to mature, usually the bottom pod has 4 yellowing, and to crack, it is the best harvest time, the specific time is in the middle and late September, the precocious fruit will dry and crack. The seeds scatter by themselves. Can be cut and dried by manual or sun-cutting machine, after drying for 7 days, pick up or manually take off (beat) with a joint harvester, the harvested seeds are suitable for grain cleaning machine classification, remove impurities, fill bags for storage or sale when moisture is below 11% after drying.

6. Storage: in a cool, monotonous and ventilated place, the seeds should not be stored for a long time, they will lose their germinating power after a year.

Picture: evening primrose

II. Matters needing attention in evening primrose culture

1. Heart-picking after planting: if the evening primrose transplanted from other places, after planting slow seedlings, a heart-picking should be carried out to promote its branches and plants to dwarf and increase the number of flowers.

two。 The south can spend the winter in the open: evening primrose is more hardy. In the warm areas of the Yangtze River basin, it can overwinter in the open, but if the temperature in the north is too low, it should be transferred to the greenhouse for breeding.

3. Increase fertilization during flowering: during the flowering period of evening primrose, use thin human urine, or fermented liquid fertilizer of bean cake, rapeseed cake and color bone, mixed with water, every 3 times every 4 days.

Picture: evening primrose

4. October is suitable for sowing: evening primrose is generally suitable for sowing in October, transferring the seedlings indoors in winter and planting in spring. For biennial cultivation, the number of flowering is more than that of annual cultivation.

5. Spring and summer is suitable for cutting: cutting is suitable for spring and summer, about a month to take root and sprout, about 85 days after survival on the pot, it can blossom.

6. Stop fertilizing in winter: stop fertilizing half a month before evening primrose overwintering.

[editor's conclusion] Evening primrose is resistant to drought, cold and barren, likes the environment with sufficient light, but avoids waterlogging and needs special attention in the process of maintenance. The above introduces the breeding methods and matters needing attention of evening primrose, hoping to be helpful to you!