Four Special Fertilization Techniques
Cherry tomatoes in addition to nitrogen, phosphorus, potassium fertilizer, pay attention to increase calcium, boron fertilizer. The production of 1,000 kilograms of cherry tomatoes requires 3.85 kilograms of pure nitrogen, 1.15 kilograms of phosphorus pentoxide, and 4.44 kilograms of potassium oxide. Before planting, 5000 kg of organic fertilizer was applied per mu, 200 kg of biological organic fertilizer, 50 kg of urea, 30-50 kg of superphosphate, 40 kg of potassium sulfate, 100 kg of calcium fertilizer, and 1.5 kg of borax. Generally, when the first fruit begins to swell, the first topdressing can be performed with 5 kg of pure nitrogen per acre and 6 kg of potassium oxide. The second time the top dressing is harvested in the first fruit, when the second ear is enlarged, 5 kg of pure nitrogen per acre and 6-7 kg of potassium oxide are applied. The third dressing is harvested in the second ear, and when the third ear is swollen, 4 kg of pure nitrogen per acre and 5-6 kg of potassium oxide are applied.
The growth of colorful bell pepper requires adequate nutrition. The production of 1000 kg of colorful pepper requires 4.2 kg of pure nitrogen, 1.1 kg of phosphorus pentoxide, 6.5 kg of potassium oxide, and also needs the appropriate amount of calcium fertilizer. Before planting, 4500 kg organic fertilizer per mu, 150 kg bio-organic compound fertilizer, 50 kg urea, 25 kg superphosphate, 50 kg potassium sulfate and 100 kg calcium fertilizer. When the seedlings are over and the first ear grows to the size of the walnut, the first topdressing is performed with 5 kg of pure nitrogen per acre and 6 kg of potassium oxide. When entering the first ear fruit (Jian pepper) is about to be harvested, the second layer of fruit (for pepper) and the third layer of fruit continue to expand and the third layer of fruit is at the peak of fertilizer application, and should be reused for the second time. Top dressing, pure nitrogen 6 kg per acre, potassium oxide 7 ~ 8 kg. The third topdressing was performed about two weeks later and the amount of fertilizer was the same as the second. After 15 to 20 days, the fourth topdressing was performed with the same amount of fertilizer applied for the first time.
The thorny cucumber without thorn cucumber is hi-favored, while the organic fertilizer is applied at the same time, and the nitrogen, phosphorus and potassium fertilizers are applied in combination. Increasing the application of molybdenum fertilizer can increase vitamin content in fruits and reduce nitrate and nitrite content. The production of 1000 kg of barbed cucumber requires 2.6 kg of pure nitrogen, 1.4 kg of phosphorus pentoxide, and 3.5 kg of potassium oxide, of which the required amount of fertilizer accounts for more than 80% of the total fertilizer requirement. Before planting, 5000 kg of organic fertilizer was applied per mu, 250 kg of bioorganic compound fertilizer, 60 kg of urea, 30-40 kg of superphosphate, and 50 kg of potassium sulfate. The first stage of fruiting melons is topdressing, applying 3 to 4 kg of pure nitrogen per mu, and 4 to 6 kg of potassium oxide. In the early stage of the harvest, the first time, the topdressing melon was applied with 3 to 4 kg of pure nitrogen per acre and 5 to 6 kg of potassium oxide. The middle third of the melon was topdressed with 3 to 4 kg of pure nitrogen per acre and 5 to 6 kg of potassium oxide. Spray 0.02% to 0.05% ammonium molybdate at full fruit stage.
The nitrogen fertilizer is applied to the seedling stage in the Netherlands, and the phosphorus and potassium fertilizers are applied during the growth period. The molybdenum and manganese fertilizers should be added. The production of 1,000 kg of Dutch beans requires 2.4 kg of pure nitrogen, 0.8 kg of phosphorus pentoxide and 5.7 kg of potassium oxide. Before planting, 2500 kg of organic fertilizer was applied per mu, 100 kg of bio-organic compound fertilizer, 20 kg of urea, 25-30 kg of superphosphate, 40 kg of potassium sulfate, and 0.5-1 kg of manganese sulfate. Into the extension of the cranberry period, the first topdressing, applied 3 kg of pure nitrogen per acre, potassium oxide 4 ~ 6 kg. During the flowering and poding period, the second top dressing was applied, and 2~2.5 kg of pure nitrogen was applied per acre, and 3.5 kg of potassium oxide was applied. Spraying 0.02% to 0.05% ammonium molybdate during flowering.
Short range distance sensors from JRT combine highly precise measurement results with quick and reliable response. Short distance sensor module use single-transmit and single-receive measurement technology and can be used to measure a distance or monitor the slow moving objects. For the laser pointer distance measure, also called optical range sensor, can measure legth, width, depth. Laser rangefinder transducer with rxtx has been widely used to industries.
Laser Distance Sensor Short Range,Short Range Sensors,Oem Laser Distance Sensor,Distance Sensor Laser
Chengdu JRT Meter Technology Co., Ltd , https://www.cdlaserdistancemeter.com