The cultivation method of kale can be selected according to the climate. In winter, cold mustard can be cultivated by thermal insulation. Of course, the temperature in spring and autumn is suitable. The kale can be directly cultivated in open field, and the summer mustard should be used for rain and cooling. Facility cultivation.
The root regeneration of Chinese kale is strong, and seedling transplanting is the main cultivation method.
Cultivation method of Chinese kale 1. Cultivation season
Kale can be cultivated in spring and autumn. Spring hoe is planted in February-March, and the harvest period is from May to June; autumn raft can be sown in July-August, and harvesting period is from October to November.
Cultivation method of Chinese kale 2. Cultivation of strong seedlings
The strong seedling of Chinese kale is a seedling with appropriate development, thick stems and large and thick leaves. The favorable environmental conditions for creating seedling growth are the basis for cultivating strong seedlings. In summer, nursery should adopt shading and cooling measures; when winter and spring are cold, plastic film can be used to cover seedlings, and fertilizer and water management can be strengthened to promote seedling growth. Seedling age 20 to 30 days, with 5 to 6 leaves, you can colonize.
Cultivation method of Chinese kale 3. Colonization
The condition of the soil is not strict, and all kinds of soil can be cultivated, but the fertile loam is ideal. The mustard spring planting should use sorghum and cover the mulch, and the autumn planting should be flat. Planting density, early maturity mustard (20 ~ 25) cm × (30 ~ 35) cm is appropriate, medium and late ripe type is 30 ~ 33 cm square is appropriate.
Method of cultivation of Chinese kale 4. Field management
After the plant is slowed down, the soil should be ploughed in time to promote the rapid growth of the root system. In the early stage of Chinese kale, it mainly promotes the growth of leaves, and provides sufficient nutrients for the differentiation and development of flower buds. When topdressing, it should supply sufficient nitrogen and appropriate amount of phosphorus and potassium. In the process of flower bud formation, in addition to supply foot In addition to the amount of nitrogen nutrition, phosphorus and potassium fertilizers must be added. Usually after slow seedling, 15-20 kg of urea per mu, and 10 kg of nitrogen, phosphorus and potassium compound fertilizer; after the plant is budded, the second top dressing is applied, and 10 kg of urea is applied to the mu, and the compound of nitrogen, phosphorus and potassium is combined. Fertilizer 15 ~ 20 kg; after the main harvest, and then apply a fertilizer, the amount of application refers to the second amount of fertilizer. The ability of kale to withstand drought and suffocation is poor, and water management is extremely important. In the blade growth period, it is advisable to see dryness. The flower bud formation period should keep the soil moist, and the relative humidity of the soil should be 80%-85%. Pay attention to drainage when it rains to prevent stains.
Method of cultivation of kale 5. Harvest
The kale is a high-quality product with large stems, long internodes, and few leaves and tender leaves. In addition to harvesting the main scorpion, the side sill is also an important part of the production. In order to promote the occurrence of side squats, prolong the harvest period and increase the yield, the main flower buds should be harvested in time when they reach the same height as the leaves. Keep 4 to 5 green leaves when harvesting. After the main harvest, strengthen the management of fertilizer and water, and also harvest 3 to 5 side squats. The yield per mu can reach 1500-2500 kg.
There are many methods for planting kale, and different planting methods can be selected according to the climate, but the steps are the same. It is necessary to pay attention to field management.
gas fuel cell is to provide the energy source for the gas actuated tools.
The first fuel cells were invented by Sir William Grove in 1838. The first commercial use of fuel cells came more than a century later following the invention of the hydrogen–oxygen fuel cell by Francis Thomas Bacon in 1932. The alkaline fuel cell, also known as the Bacon fuel cell after its inventor, has been used in NASA space programs since the mid-1960s to generate power for satellites and space capsules. Since then, fuel cells have been used in many other applications. Fuel cells are used for primary and backup power for commercial, industrial and residential buildings and in remote or inaccessible areas. They are also used to power fuel cell vehicles, including forklifts, automobiles, buses, boats, motorcycles and submarines.
GAS ACTUATED TOOLS Gas Fuel Cell
Gas Fastening Tool,Gas Tool For European Market,Gas Fuel Cell for Cordless Nailer,FC165 Sleeping Fuel Cell
YIBIN CITY NANXI DISTRICT QIANGXIN PLASTIC CO.,LTD. , https://www.homsetfastening.com