1. The base fertilizer is applied to the high-quality farmyard manure twice acre. 2. The production level is above 6500 kg/mu: nitrogen fertilizer (N) 18~20 kg/mu, phosphate fertilizer (P2O5) 8~10 kg/mu, potash fertilizer (K2O) 14~16 kg/mu. 3. The production level is 5500~6500 kg/mu: nitrogen fertilizer (N) 15~18 kg/mu, phosphate fertilizer (P2O5) 6~8 kg/mu, potash fertilizer (K2O) 12~14 kg/mu. 4. The production level is 4500~5500 kg/mu: nitrogen fertilizer (N) 13~15 kg/mu, phosphate fertilizer (P2O5) 4~6 kg/mu, potassium fertilizer (K2O) 8~10 kg/mu.
For the more serious plots of “dry heartburn†in previous years, pay attention to nitrogen and calcium supplementation, and spray 0.3%~0.5% calcium chloride (CaCl2) solution 2~3 times from the rosette stage to the late stage of the ball formation; When the soil pH of the vegetable garden is less than 5, 100-150 kg of quicklime is applied per acre; when the soil pH is <4.5, 150-200 kg of quicklime is applied per acre. For the boron-deficient plots, 0.5~1 kg/mu of borax may be applied, or 0.2%~0.3% of borax solution may be sprayed 2~3 times. At the same time, it can be sprayed with spraying 2~3 times of 0.5% potassium dihydrogen phosphate to increase the vegetable yield and commodity rate of cabbage. Nitrogen and potassium fertilizer 30%~40% base application, 60%~70% in the rosette stage and the initial stage of ball formation, and the phosphate fertilizer is used as the base fertilizer or hole application.
Plasma Drilling & Cutting Machine is two function on one machine .
1. Plasma Cutting Machine :different sheet need different power source, China HUAYUAN or USA Hypertherm power source can choose.
2. Drilling :drilling function is one auxiliary function of plasma cutting machine .if the hole diameter is too small , drilling function is better choose instead of plasma cutting .2mm-18mm is standard drilling diameter
3. This two functions can choose one or two
Metal Drilling Machines,Cnc Cutting Table,Used Plasma Cutter,Cnc Plasma Cutting Table
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