First, the requirements of corn on the soil 1. The soil is deep and well-structured. Maize has a well-developed root system and forms a dense and strong root system in the soil layer within 1 meter of vertical and horizontal. Only with a deep layer of living soil and a thick layer of soil and soil, the root system can grow well. 2, loose ventilation. Loose soil ventilation, conducive to root under the bar. Nitrogen fertilizer efficiency can be increased to ensure the oxygen requirement of the root system. 3, plough layer organic matter and available nutrients are high. The pH and salt content of the soil also have a great influence on the growth of corn. The optimum pH is 6.5-7.0. 4, soil permeability and water retention performance. Second, corn fertilization technology 1, the application of basal fertilizer. Due to conditions, it is common to apply organic fertilizers from 1,000 kg to 2,000 kg/mu before planting. In practice, due to the rush of time, farming is not timely and fertilizer is often not applied. 2, the application of fertilizer. Fertilizer with nitrogen, phosphorus, potassium compound fertilizer is appropriate, such as Zhuangmian special corn fertilizer produced by the Shandong Agricultural Special Fertilizer Plant, about 30 kilograms of seed fertilizer per acre, can increase production by 10%. The role of seed fertilizer is to meet the needs of nutrients at the early stage of corn production and promote root development and seedling growth. 3, top dressing application. The appropriateness of corn top dressing is the key to high yields. According to a large number of experiments, the top dressing of corn is most suitable for three times, namely, seedling stage, panicle stage and grain stage. 1 Miao Fei, after Dingmiao to jointing stage topdressing. 2 Panicle fertilizer, which differentiates into the deep long filaments in the spikelets, is called the big bell-mouth period. 3 tablets of fertilizer, topdressing till flowering. Fertilizer can be topdressed with nitrogen and potassium for fertilization. However, considering the crop of the next crop, it is better to apply nitrogen, phosphorus and potassium compound fertilizers. For example, the formula for special maize produced by the Shandong Agricultural Special Fertilizer Plant can be fertilized with 75 kg of Mushi. Meet the needs of corn later.
Types:
CFBC boiler nozzles
Cast Iron bed boiler air nozzles
Bell/type or mushroom nozzles
Air Nozzle Head,Air Nozzle Cover,Boiler Casting Parts,Air Nozzle Pipe Jinan Yuanda Power Equipment Co.,Ltd. , https://www.ydboilerpart.com
Boiler Air Nozzles ( also known as boiler nozzles, bubble cap, boiler tube, Air distributor, nozzle button, nozzles for fluidized bed combustion boiler ), are Used in fluid bed combustion boilers. These are manufactured in various chemical compositions,such as cast iron, cast steel,stainless steel,etc to suit the different fuel`s used in the boilers. Variety of air hole combination`s are available.