How to make reasonable fertilization for greenhouse cucumber and tomato
1. When it comes to fertilizing cucumbers and tomatoes at different growth stages, it's important to adjust the fertilizer amount and concentration accordingly. During the seedling stage, plants need only a small amount of nutrients with low concentration to avoid overloading their young roots. However, during the fruiting stage, a higher dose of fertilizer is needed to support the heavy nutrient demand. Some farmers mistakenly apply 200 kg of diammonium phosphate in one go, which is not scientifically sound. Relying solely on diammonium phosphate to achieve high yields can actually harm plant health and soil balance. 2. Fertilization should also be adjusted based on soil conditions. If using water-based top dressing, the amount of fertilizer should be determined by the soil's moisture level. In dry soils, use a lower concentration but more frequent applications. In moist soils, you can increase the concentration slightly while reducing the amount. Sandy soils have poor water retention and nutrient-holding capacity, so they require smaller, more frequent fertilizer applications. On the other hand, clay soils retain water well and have better fertility, so they can be fertilized less frequently but with larger amounts each time. 3. Weather conditions also play a key role in determining the right fertilizer concentration. High temperatures can reduce the root system’s tolerance to concentrated fertilizers, increasing the risk of root burn. Therefore, it's best to use lower concentrations when it's hot. Conversely, during cooler periods, higher concentrations are more effective because plants absorb nutrients more slowly. Always consider the weather before applying fertilizer to ensure optimal results. 4. Different types of fertilizers require different application methods. When using chemical fertilizers, it's recommended to apply them in furrows to concentrate the nutrients where they're most needed. After top-dressing, cover the soil promptly to minimize nutrient loss through volatilization. When applying nitrogen fertilizers, keep them at least 10 cm away from the plant roots to prevent damage. Combining compost with irrigation can significantly improve fertilizer efficiency and promote long-term soil health. In general, the base fertilizer for cucumbers and tomatoes is similar. For one mu (approximately 667 square meters) of greenhouse land, it's recommended to use around 3,000 to 4,000 kg of decomposed manure or 520 to 640 kg of avermectin organic fertilizer. Note that chicken manure is no longer used in avermectin organic fertilizer production, and about 40–50 kg of avermectin organic fertilizer can replace 500–800 kg of chicken manure. Additionally, 40 kg of diammonium phosphate, 100 kg of pure potassium sulfate, 30 kg of urea, 4 kg of calcium nitrate, 3 kg of borax, 1.5 kg of zinc sulfate, and 40 kg of microbial agents should be applied. These materials should be deeply incorporated into the soil. Microbial agents can be applied via trenching or injection, and can be concentrated during transplanting. Based on our field trials in Shouguang and Liaocheng in recent years, balanced fertilization not only reduces costs but also increases yield and improves crop quality. Ecg Conductive Gel,Ecg Electrode Gel,Electro Conductive Gel,Electrode Conductive Gel Suzhou Letai Medical Technology Co.,Ltd. , https://www.letaihealthcare.com