We are supply several series LED Flashlight, it can be used in various aspects, such as Riot police, traffic police, geological exploration, field trips, navigation, aircraft maintenance and others.They are made of aerial aluminum,have long life time and waterproof,protection levels to meet IP 65.And our flashlight have small size with light weight,are very easy to carry. In addition to,high power,low current,can rechargeable for environmental protection,high quality are all their features. Most importantly, customers don't have to worry about after sales,we offer 1 year warranty service,solve everyone worries.So welcome to buy it. LED Flashlight LED Flashlight,Multifunctional LED Flashlight,LED Police Flashlight,Highlight Search LED Flashlight Zhejiang Xinan Intelligent Technology CO, LTD. , http://www.vipxinan.com
1. Nursery and rooting The amaranth produced continuously in autumn and winter needs to be planted in the same year. In the same year, the greenhouse was deducted, and 3 to 4 knives were harvested continuously. The roots were harvested and other vegetables were produced. Selecting excellent varieties suitable for continuous production in autumn and winter, such as Hangzhou Xueyan, Sichuan Xipupu, Henan 291, Shandong Dugenhong, etc., germination sowing seedlings.
(1) Live seeding in the same year: After the soil was frozen in the spring, the soil was planted and strengthened, and the greenhouse film was put into production after the winter was frozen. This method is worse than the quality and yield of the production of the button film after the second year of transplanting. However, it has the advantages of saving labor and saving land and other benefits.
1 Soil preparation and fertilization: Amaranth seedlings should choose a field with good drainage, fertile soil, loose texture, PH planting 5.6~6.5, avoiding continuous cropping with onion and garlic vegetables. Prepare the ground before freezing or 20cm in the spring of next year. 5000~7000kg of high-quality organic fertilizer per 667m2, 50kg of superphosphate, or 1000~1500kg of cottonseed cake, 150kg of superphosphate, 2~3kg of zinc sulfate, deep tillage, soil and fertilizer, Rib or squat, sow and cover the mulch.
2 Seedling fertilization: When the seedling height is 10~15cm, apply 1 time of manure dilution with watering, apply 500kg per 667m2, or 15kg of zinc sulfate. In the future, we will control the weeding and weeding in the water, and the seedlings will be strong and strong to prevent the lodging.
The weather is getting colder after the autumn, which is the best season for the growth of leeks. In order to promote the vigorous growth of leaves, lay a material foundation for bulb expansion and root growth, it is necessary to strengthen fertilizer management and pest control. Generally, water is poured once every 4~5d, combined with watering, 500kg of decomposed organic fertilizer per 667m2, or 30~50kg of diammonium phosphate, and 100~200kg of ash. Conditional can be used to feed 200kg of cake fertilizer. When the 20d is weak, you can catch another fat.
The amaranth produced continuously in autumn and winter was planted in the same year and harvested in the same year. After harvesting 3~4 knives, plan the roots. So no matter how early the sowing, do not enter the early winter, do not harvest before the open field leek has not been dormant. During the summer and autumn, sometimes when the growth is excessively luxuriant, it is easy to fall down and cause disease. High cut can be carried out at 8~10cm on the leaf sheath, combined with soil-raising ridges to control watering. When the surface is about to be frozen, it is necessary to pour frozen water. It is best to combine with manure or compound fertilizer. Generally, the fertilizer is diluted 500kg per 667m2 or 20kg of ternary compound fertilizer. Frozen water is the source of moisture for the first leeks and is essential in the production of protected areas.
Cover the greenhouse plastic film before the frost appears. According to the growth of the leek and the market, cut off the knife first, then cover the film or cover the film, and then harvest the first knife.
(2) Transplanting and raising roots: In order to make the growth of the leek plants uniform and improve the yield and quality, it is best to carry out seedling transplanting. It can be planted in the same year, transplanted and rooted, and transplanted for two years. Spring can also be broadcast in autumn.
1 seedling strong seedlings: nursery land should choose fertile, loose plots, about 333m2 of nursery land per 667m2 greenhouse. When the surface is frozen at 20cm in spring, do 1m wide and 6~10m long seedling nursery. When applying 50~70cm of rotten farmyard manure, combine with watering to chase dung or compound fertilizer, and dilute 300~500kg per 667m2. The ternary compound fertilizer is 10-15kg.
2 transplanting management: before harvesting in the solar greenhouse, fertilizing the whole land, applying 5,000-8000kg of farmyard manure per 667m2, deep-turning fine stalks, ridges according to 40cm row spacing, and cultivating strong seedlings in late June In the shallow ditch, and fill the seedling water. When the new leaves grow green, when the seedlings are finished, the new roots and leaves should be watered and topdressed, and 20 kg of urea should be applied every 667 m2 with water. The soil should be cultivated in time, the ground will see dry and wet, and other management will be broadcast live. Raise the roots.
2. Management of fertilizer and water after the film is released. The temperature of the leek is low in the early stage of growth, the greenhouse is closed, and the water evaporation is small. Generally, the frozen water and the land that has been chased by the fertilizer are poured, and the watering is not applied before the first knife is harvested. After harvesting from the first knife, the soil is loosened immediately after each harvest. After the new leaves are to be watered, 30 to 50 kg of ammonium nitrate is applied per 667 m2 of water.
Topdressing and watering should be carried out in combination with cultivating soil. When the plant height is 10 cm or more, the ridge is carried out. When the plant height is about 20cm, the second ploughing is carried out, the chemical fertilizer is sprinkled in the furrow, the soil is watered in the soil, and the water is poured again 1 to 2 days before harvesting.
In the greenhouse for cultivating cucumbers, the cucumbers are planted in the ridges after harvesting, and the temperature and humidity adjustment and fertilizer management should be carried out according to the needs of the cucumbers.
In the single greenhouse for the production of amaranth, the third knife and the fourth knife are needed during the growth period to prolong the release time, and the topdressing is about 15cm. Each time 667m2 is applied with 20~25kg of ammonium nitrate or 25~30kg of ammonium sulfate, the fifth knife and the amaranth grow at the same time. In order to prevent yellowing, dry tip, root rot and other diseases caused by high temperature hazards, water should be poured and water should be controlled.
Because of the long growing period of the protected leeks and the number of harvesting, fertilization and rooting are particularly important. The amount of fertilization in protected areas is generally 10% to 20% higher than that in open fields. Especially in the late autumn and early spring, organic fertilizers such as human excrement, horse manure, and grass ash should be added to increase the ground temperature and be harvested early.
The film leeks are prone to soil acid damage. Lime or ash should be applied before the membrane to adjust the acidity of the soil. At the same time, a large amount of organic fertilizer should be applied to improve the soil buffer capacity. When acid damage occurs after the film is buckled, the calcium nitrate Ca(NO3)2 fertilizer solution can be used to fill the root, and the effect is good.
Huaxian Agricultural University Liu Huimin
Amaranth fertilization new technology Amaranth has strong adaptability to soil, strong resistance to salt and alkali. During the growth of protected land, its main nutrients come from nutrients stored in rhizomes and bulbs. The growth of leeks in the solar greenhouse is the production mode in which the leeks are locked into the greenhouse after the leek is dormant, which causes the leeks to break the dormancy early and sprout. Therefore, the development of robust roots before the shed, has a significant impact on production and quality. The cultivation of leeks in protected areas mainly includes autumn and winter glutinous rice, winter spring glutinous rice and spring glutinous rice, while the continuous production of autumn and winter glutinous rice has high economic benefits, and it is the main cornice of cultivated land cultivation in China.
ã€Comment】 ã€Print this article】 ã€Close this page】 ã€Large, medium and small】