Watermelon needs a large amount of fertilizer, and it is necessary to apply high-quality basal fertilizer. Each mus can apply 1500-2000 kilograms of rotting fertilizer, and add 25-30 kilograms of special compound fertilizer for watermelon. It should be pointed out that fertilization method is best to use double-channel fertilization, that is, The middle of the car is 30-40 cm apart on the two sides, and a 20 cm deep and 30 cm wide ditch is opened. The fertilizer is applied to the two ditch. Covering the soil is about 5 cm. The melon plant is planted in the middle of the two fertilizer ditch. The advantage is that it does not burn seedlings and prevent leggy. Under the premise of applying the base fertilizer, only one application of human excrement and 200 kg of urea and 3 kg of urea can be applied to extend the vine. Due to flowering and fruit setting, watermelon is very sensitive to water and fertilizer. When the fertilizer and water are excessive, the nutrition of the plant will be excessive and it will easily lead to leggy. When the young fruit grows to the size of the egg, a suitable amount of topdressing, combined with the spraying of the guar-tilin can make the guadi thicker, strengthen the directional delivery of nutrients, and promote the rapid development of the melon body. When the watermelon sits inflated, the roots extend to the two fertilization ditch. The nutrients are sufficient, and it is advantageous to quickly grow into a melon-shaped large melon. While strengthening the management of fertilizers and waters, it is also necessary to effectively strengthen the control of pests and diseases, prevent and cure damping-off at the seedling stage, and pay attention to the ventilation and air-conditioning of the seedbed and control of watering. We must focus on the prevention and control of fusarium wilt and anthrax, and it is best not to continue the work. The best interval is more than 3 years. Do a good job of clearing the ditch and remove the diseased plants. It can be sprayed with 75% chlorothalonil WP or 70% dexcon or 20% thiazole or Bordeaux to prevent the effect.
Main Feautures For Electronic Sphygmomanometer Automatic BP Machine Digital Upper Arm Blood Pressure Monitor:
· Measurement method: oscillometric method
· Display screen: LCD big digital display shows high pressure / low pressure / pulse
· Blood pressure classification: WHO sphygmomanometer classification indicates blood pressure health
· Intelligent pressurization: automatic pressurization and decompression, IHB heart rate detection
· Year/month/day time display
· 2*90sets of measurement results memory for two people; the average reading of the last 3 measurements for data comparison
· One button measuremment,automatic turn on-off for convenient operation
· Blood pressure value unit Kpa and mmHg for conversion (boot default unit is mmHg)
· voice broadcast function is optional,any OEM demand available
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Comfortable cuff included