Second, the optional fertilizer types
1. Farmyard manure, such as compost, manure, biogas fertilizer, green manure, crop straw, mud fertilizer, cake fertilizer, etc.
2. Biological bacterial fertilizer, including humic acid fertilizer, rhizobial fertilizer, phosphorus bacterial fertilizer, and compound microbial fertilizer.
3, green manure crops, such as grass carp, Chinese milk vetch, Tian Jing, ramie, alfalfa and so on.
4, organic compound fertilizer, such as Yililai active (biological) organic fertilizer, Fengyi brand organic compound fertilizer, Badaling brand bio-organic fertilizer, green sun liquid fertilizer, Yi'an Shenli and so on.
5. Wastes from other organic production, such as bone meal, amino acid residues, livestock processing waste, and sugar factory waste.
Third, should pay attention to the problem
1. Manure and manure should be fully fermented and decomposed, preferably by biological bacteria, and rinsed with water after top dressing. In addition, human feces and urine contain high levels of nitrogen, and should not be applied too much on crops such as potatoes, melons and beets.
2. Straw-based fertilizers are prone to cause soil hypoxia in the process of mineralization and produce plant toxins, which are required to be turned into soil before crops are planted or transplanted.
3, organic compound fertilizer is generally a long-acting fertilizer, when applied, it is best to apply farmyard manure to improve fertilizer efficiency.
Fourth, the application method
Base Fertilizer: Combine 3000-5000 kg of composted compost or bio-composted per mu, and use organic compound fertilizer as seed fertilizer if conditions are available. For example, Yililai active (biological) organic fertilizer 100 kg, Fengyi brand organic compound fertilizer 60 -70 kg. The method is to apply the ditch strip or the hole under the seed or the seedling before transplanting or sowing. The fertilization depth is preferably 5-10 cm, pay attention to the middle interval soil.
Top dressing: topdressing is divided into soil fertilization and foliar fertilization. Soil topdressing is mainly carried out in combination with watering and soil cultivation in the vigorous growth period of vegetables, mainly using human excrement and bio-Puli fertilizer. Foliar fertilization can select bio-organic foliar fertilizer in the seedling stage and growing season, such as the 500-fold liquid solution and the 500-fold liquid solution of Yi'an Shenli, spray once every 7-10 days, and spray 2-3 times. Green manure is generally rolled over during flowering, with a depth of 10-20 cm, and a pressure of 1000-1500 kg per acre. The turning time can be determined according to the decomposition speed of green manure.
In addition, according to the characteristics of fertilizers and different soil properties, different vegetable types and different growth and development periods, scientific application can effectively fertilize the soil and improve crop yield and quality.
Elevator Electrical Components
The electrical control system of the elevator consists of control device, control device, leveling device, and position display device. The control device controls the operation of the elevator according to the logic function requirements of the elevator, and is set on the control cabinet in the machine room. The control device controls the operation of the elevator by the button box in the car and the call box button in the hall door. Leveling device is a control device that sends leveling control signal to make elevator car level accurately. The so-called leveling refers to the operation to make the car sill and hall sill reach the same plane when the car is approaching the stop on a certain floor. The position display device is used to display the indicator lights in the car and the landing door of the floor where the elevator is located, and the landing door indicator light also indicates the running direction of the elevator with a tip. China Elevator Electrical Components,Elevator Electrical Parts,Electrical Elevator System,Elevator Electrical Components Inside, we offered that you can trust. Welcome to do business with us.
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