Second, look at soil fertilization. Different soil types and fertilization methods are different. Light loam has good fertilizer and fertilizer performance, and can be applied more and reapplied. Sand loam can be fertilized multiple times, but the amount is less, to prevent fertilizer waste. Excessively compacted and hardened plots pay attention to the organic fertilizer after application. Third, look at the seedlings and fertilize. Master the principle of “small seedling period, stable flowering period and heavy fruit periodâ€. In the early stage, nitrogen fertilizer was the main factor, and nitrogen, phosphorus and potassium were combined in the middle and late stages. The vegetative growth period of early-maturing cultivars is short, and the early stage should focus on promotion; the late-maturing cultivars have long vegetative growth period, and the early focus is on controlling and promoting the combination, so that the seedling stage can grow steadily. The melon seedlings are generally applied with a concentration of 10% to 15% of clear manure water, which can be gradually enriched as the plants grow. In the later stage of growth, it can generally be concentrated to 30% to 40%. Four look at the type of vegetable fertilization. Beans have rhizobium to fix nitrogen, need less nitrogen fertilizer, and need more phosphate fertilizer; root vegetables and yam need more potassium fertilizer; leaf vegetables need more nitrogen fertilizer; fruit vegetables need to apply nitrogen fertilizer, With phosphorus and potassium fertilizer. Five look at fertilization. Nitrogen fertilizers such as ammonium hydrogen sulfate and human excrement are acidic and cannot be mixed with alkaline fertilizers such as grass ash to avoid reducing fertilizer efficiency. Superphosphate or the like cannot be mixed with acidic fertilizer. Ammonium hydrogen sulfate and urea are in contact with seeds, stems and leaves, which may cause burns. Urea is used as a top dressing, and its concentration cannot exceed 1%. Ammonium chloride and potassium chloride cannot be used on chlorine-removing crops such as potatoes. In the later stage of growth, it can generally be concentrated to 30% to 40%. Six look at fertilizer fertilization. The farmer's fertilizer is slow and is generally used as a base fertilizer. Fertilizer fertilizer is fast, nutrients are incomplete, fat is easy to cause long, only suitable for topdressing and a small amount of base fertilizer. Urea is generally used for top dressing, and should be applied 4 to 6 days in advance in order to exert fertilizer efficiency. Phosphate fertilizer has small mobility and is generally used as seed fertilizer and top dressing. For topdressing, it is necessary to ditch and apply it to the root layer. Seven look at the day to fertilize. It is not fertilized in rainy days to avoid the loss of fertilizer; it is not fertilized in days, it is not fertilized in foggy days, and the temperature is high without fertilization, so as to avoid the occurrence of mildew of plants, so fertilization should be carried out on sunny days. Disclaimer: Some articles on this website are transferred from the Internet. If legal rights of third parties are involved, please inform this website. phone Sd Card Storage Ptz Camera,1080P Driving Recorder,Industry Outdoor Camera,Vision Wireless Camera Shenzhen Zuomi Technology Co., Ltd. , https://www.zuomicamera.com
Summer vegetable fertilization should be seven
A look at climate fertilization. In summer, the temperature is high, the fertilizer is decomposed quickly, the rain is high, and the fertilizer is easily lost. When fertilizing, a small number of ways should be adopted, and the decomposed farmyard fertilizer should be applied and dispersed in a timely manner. More sunny days, less rainy days.