One, how much is a catty of yellow essence seeds
The price of yellow essence seeds varies according to varieties, varieties of chicken head yellow essence, multi-flower yellow essence and Chu yellow essence. Chicken head yellow essence is mainly produced in Henan, Hebei, Shandong, Northeast and other places, good quality, but the head is small, the seed is about 50 to 80 yuan a catty. Multi-flower yellow essence is mainly produced in Hunan, Anhui, Jiangxi, Zhejiang and other places, the seed is about 100~120 yuan a catty. Dian yellow essence is mainly produced in Yunnan, the seed is about 120~150 yuan a catty. It is worth noting that when buying yellow essence seeds, first consider the authenticity of the seeds, and then consider the price.
Two, yellow essence sowing method
1, seed treatment: yellow essence in August after the seed maturity, choose the mature and full of seed immediately sand treatment, seed 1, sand and soil 3 mixed evenly, exist in the back of the shade 30 centimeters deep in the hole, keep moist.
2, timely sowing: yellow essence is usually sifted seeds in late March, row spacing 12 ~ 15 cm evenly sown into the ridge shallow ditch, cover the soil about 1.5 cm, slightly pressed watering, cover grass moisturizing.
3, seedling management: yellow essence before the emergence of seedlings to remove the compound cover grass, seedling height 6 ~ 9 cm time seedlings, 1 year after transplantation, planting in order to meet the yellow essence of the growth of the required shade conditions, can be planted on the ridge corn.
Three, yellow essence cultivation method
1, land preparation and fertilization: yellow essence cultivation selection of wet land with adequate shelter, the soil is preferably loose, water retention capacity of good loam or sandy soil, before sowing, deep turn over once, the land as a whole 2000 kg of farmyard fertilizer per acre, and then harrowing and leveling the ridges, ridge width.
2, plowing and weeding: yellow essence of pre-growth often plowing and weeding, once a year in April, June, September and November, respectively, shallow hoeing proper cultivation of the soil, late pulling weeds can be. Encounter drought, or planted in sunny, dry places, need to water immediately.
3, timely fertilization: yellow essence every year combined with plowing and weeding fertilizer, the first three times after plowing per mu of soil fertilizer 1500 kilograms and 50 kilograms of calcium superphosphate, 50 kilograms of cake fertilizer, mixed and mixed in the rows of ditching applicators, the application of soil covered with fertilizer.
4, disease and insect control: yellow essence leaf spot disease with 65% daisen zinc wet powder 500 times liquid control, black spot disease spraying 1:1:100 Bordeaux solution, octopus with 75% phoxim emulsifiable concentrate according to the amount of seed 0. Mixed with 1% or the field occurred during the period of 90% trichlorfon 1000 times liquid watering.
5, seed saving technology: yellow essence can be propagated by rhizomes and seeds, but the production of the best use of rhizome propagation, late fall or early spring around late March, choose robust and disease-free plants to dig underground rhizomes as propagation material for direct cultivation.
6, harvesting and processing: the yellow essence is generally harvested in spring and autumn, with good quality harvested in autumn, cultivated for 3 to 4 years after the withering of the ground in autumn, digging rhizomes, removing the above-ground parts and fibrous roots, washing away the soil, steaming to the presentation of oily and moist when taken out of the sun dry or drying.