First, the type of leek Amaranth can be divided into four types according to edible organs: root mites, leaf mites, flower buds and leaf flowers. Among them, the leaves and flower buds of both leaves and buds are well developed and can be eaten. Most of the varieties currently cultivated belong to this type, and can be divided into broadleaf and narrow leafhopper according to their leaf width. 1. The broadleaf leaves are thick and thick, the leaf sheath is thick and strong, the color is lighter, the variety is soft, the growth is strong, and the yield is high, but the fragrance is slightly light and easy to fall, suitable for open field cultivation and softening cultivation. The main fine varieties are Beijing Dabaigen, Jinnan Qinglan, Hanzhong Donglu, 791 Amaranth, Xipu Xueyu, Pingjin No. 2, Shouguang Maji, Jinyin No. 1, Zhucheng Maji, Jiaxing Baigen and so on. 2. The leaves of the narrow leafhopper are long and narrow, the leaf sheath is thin, the leaf color is dark green, the fiber is slightly more, the erect is strong, it is not suitable for lodging, the aroma is strong, the quality is excellent, the cold resistance is strong, and it is suitable for open field cultivation and various species. The excellent varieties commonly cultivated in the north of China are Tianjin Daqing Miao, Baoding Honggenyu, Shaoxing, Rizhao Line, Zhucheng Dajin Gou and so on. Second, season cultivation Amaranth has strong cold tolerance and wide adaptability. The spring, summer and autumn seasons in Shandong can produce green barley. The stalks of the open field leeks can be sown at any time from the time the soil is thawed to 60 to 65 days before the local soil is frozen. However, between the summer solstice and the autumn, the weather is hot and the rain is continuous, which is not conducive to the emergence of amaranth sprouts, and the seedlings grow thin. Sowing from late March to late May is appropriate. Third, choose the variety The leeks can be harvested continuously for many years, and the varieties with strong growth and high yield should be selected. Commonly used varieties are Jinan Chunyu, Jinyin No.1, 791 Amaranth, Jiaxing Baigen, Zhangjiakou Maji, Hanzhong Dongyu, Xipu Xueyu, Beijing Daqingmiao, etc., as well as a generation of hybrid Sai Song, Pingyi No.1 and so on. Fourth, seedlings and live broadcast Amaranth seedlings are still live, and should be used flexibly according to the cultivation area, land and labor conditions. 1. Seedlings mainly include technical aspects such as soil preparation, seed treatment, sowing, and seedling management. (1) According to the characteristics of small amaranth seeds, slow emergence and bow-shaped excavation, the high-dry sandy loam should be selected before the sowing. Fine farming is a key measure to ensure the whole seedling of amaranth. Spring drawing should be cultivated before winter, and then shallow tillage should be carried out near the planting, combined with the application of base fertilizer to improve soil fertility. After ploughing, the soil is evenly distributed and the soil is finely divided. In the spring drought in the north, it should be made into a flat raft with a width of 1.6 to 1.7 meters and a length of 8 to 10 meters. (2) soaking seeds, germination, leek, dry seeds, sowing or soaking seeds can be germinated. Spring sowing is low in evaporation due to lower temperatures, and more seeds are sown with dry seeds. In the early summer, the temperature is high and the amount of evaporation is large. In order to make the seed buds sprout out of the soil, it is better to soak seeds after germination. The method is to put the seeds into the warm water of 30 ° C ~ 40 ° C 4 to 5 days before sowing, to reduce the water temperature to 15 ° C ~ 18 ° C, remove the seeds, soak for 24 hours (change the water 1 or 2 times in the middle), wash After the seeds, they are slightly cooled and wrapped in a damp cloth. They are placed in a place of 15 ° C ~ 18 ° C to germination, washed daily with water, and after 2 to 3 days of radicle sticking out, should be planted in time. (3) Sowing in all parts of Shandong is mainly spring sowing, and the planting period is from early April to early May. Seeding methods can be spread and broadcast. Spreading is to spread the seeds evenly in the scorpion, the seedlings are evenly distributed and the growth is consistent; the seeding is to sow the seeds in shallow ditch with a line spacing of 10-12 cm and a depth of 2~3 cm. The seedlings are unevenly distributed, but it is easy to manage. The seedling stage is required when 4 to 5 true leaves are used per acre. The number of days from sowing to the exit depends on the ground temperature at that time, ranging from 6 to 20 days. It takes 80 to 120 days for the amaranth to be planted to colonization. After the seedlings are unearthed, the water and fertilizer management should be strengthened in the early stage to achieve frequent pouring and light pouring, and the kneading surface is often kept moist, and the urea is applied in an amount of 8 to 10 kg per mu. When the seedling height is about 15 cm, properly control the water seedlings to prevent the seedlings from being weak and causing the lodgings to smash and remove the weeds at any time. This article URL: how to grow amaranth, fertilization can be high yield Vet Ultrasound Scanner,Ultrasound Scanner For Vet,Ultrasound Scanner For Horse,Animals Ultrasound Scanner Guangzhou Sonostar Technologies Co., Limited , https://www.sonoeye.com