Evening Primrose Technology
Evening Primrose is mainly distributed in Heilongjiang, Jilin and Liaoning provinces. Most of them are wild and rarely cultivated. Hebei, Shandong, Jiangsu and other places also have a small amount of cultivation for ornamental purposes.
The plant height is 150-200 cm. Root cylindrical, white fleshy, stout, 10-20 cm long. Stems erect, branched. Seedling stage basal leaves clustered in rosettes; cauline leaves alternate, stalks in lower part of neck, upper leaves nearly sessile; leaf blade oblong, lanceolate or oblanceolate, sparsely elliptic, long 5 ~10cm, 1.5~3cm wide, leaf margins with irregular sparse serrations.
Moon-seeing herbs have a long history. As early as the 7th century AD, Indians used it to treat diseases and introduced them to Europe in the 17th century. It is mainly used for medical injuries and has functions such as analgesia and cough suppression. It is called "royal royal drug". Evening Primrose is mainly used as seeds for medicine. Seed oil contains 70 to 80% of linoleic acid, especially rare and special physiological activity of r-linolenic acid, which has the effects of lowering cholesterol, preventing arteriosclerosis, cosmetology, losing weight, anti-inflammatory, anti-cancer and anti-aging. It is of concern to the world medical community. Evening primrose oil is a good edible oil. The root of evening primrose is antipyretic and anti-inflammatory medicine.
Evening Primrose is a new type of oil, medicinal, and spice crop. It is drought-tolerant and poor-tolerant. Black soil, sandy soil, loess, young forest land, light saline-alkali land, wasteland, flood land, and hillside land are all suitable for planting (heavy salt and alkali land is not suitable for planting). Generally spring planting, autumn harvest. In July and August, wheat and watermelon can be planted on the evening primrose, or planted on sunflowers, sorghum, corn, soybeans, small grains and other places. After the second crop grows, it will always grow until it freezes. The root naturally overwinters and returns to the early morning in the second year. After rooting and rinsing, the root grass and water are not raised. The basic management is not needed until the autumn harvest. It can also be planted before freezing and harvested in the second year of autumn. The following describes planting techniques for reference by growers.
sowing
Spring land is cultivated from time to time, and it will be harvested before the end of May. If no drought occurs before the end of May, red beans, mung beans, and early beans can be grown. Before sowing, buy one gram of 920 alcohol or more than 50 degrees of white wine, deepen and pour into 60 to 100 pounds of water to mix well, then soak the seeds in water for 24 hours (if there are few seeds, the amount of 920 and the amount of water shall be reduced proportionately. Allow seed to inhale enough water to prevail, then seed the skin of the prized seed to air dry (do not dry the seed), use a point gourd to sow or use a plastic well pipe 1.3 meters long and 2 inches long, and do the plastic One end of the tube is sealed, and then the two sides of the plastic tube sealed by a knife are cut on both sides. The screen can then be tied with the window screen. You can also use the paper box to see if it is even, and then sow directly in the ground.
Fertilizer
Asking for farmhouse manure, generally moderate yields can be achieved without fertilization.
Seedling density
First of all, it must be pointed out that the density of seedlings must be determined according to land strength and species. If the species of late-maturing hard-rods is planted densely, wide-spots sowing, like ridges like corn, the seedlings seem to have the highest yield of 2 or 3 rows, as long as the seedlings are not leaning Together can be. If it is a species of early-maturing soft rods, 2 rows per ridge, row spacing is 30 centimeters per month, and plant spacing is 6 to 7 inches. Seedlings grow to 5 to 7 tablets and they begin to set seedlings. If hard seedlings do not use seedlings at around 3 inches, they will be able to open a pile of seedlings.
Evening primrose requires about 50 days of lighting time from emergence to pulling. This period of time is slow. Please do not destroy seedlings.
After the emergence of evening primrose if weeds can be removed in a timely manner, the hard rod varieties are planted at high density without shoveling, and the soft rod varieties are halved once on the line. If the herbicides are sprayed, only the roots and yarrow can be sprayed. Herbicides.
reward
Evening Primrose is the top plant, when the pod on the main stem matures to one-third or three-quarters, the bottom three to four corners turn yellow, and the corners crack or leave to crack. The top leaves a flower or no flowers. You can harvest, we must grasp the timing of harvest, as far as possible postponed a few days after the receipt as well, the harvest can be the first to unite or harvest can be, but do not carry the weeds, if weed seeds mixed in evening primrose seeds Screening is not easy to clean out, bundled into small bundles at the harvest, along with the harvest and transported to the house to prevent corner cracking seeds landed, transported home after the corner up on a clean factory yard, drying more than 10 days or so dry Only when it is time can it be collected. Normally, it can be netted once. If it is not cleaned, it can be shot again. If the species is more than enough, it can be put in the ground and put the evening primrose on the top to dry it, or it can be piled up in a circle. , And in the field to collect, you can also use soybeans and receive.
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