Application method of biological bacterial fertilizer
1. Seedling raising: When tray or bed type seedling raising is adopted, biological bacterial fertilizer can be mixed into the seedling raising process and piled for three days, and then put into the seedling raising tray and nail. When raising seedlings in a nutrient bowl, the biological bacterial fertilizer is first evenly mixed into the seedling soil, and then put into the nutrient bowl to raise seedlings. Because the seedling is mostly carried out in greenhouse or plastic shed, the temperature and humidity conditions are good, which is convenient for microbial reproduction and growth, and the dosage is less than that of field base fertilizer.
2. Base fertilizer (base fertilizer): the amount of biological bacterial fertilizer is small, so it is not easy to apply it evenly. Before covering the soil, it is easily affected by the sun, and it will be blown away by the wind on windy days. Therefore, when used as base fertilizer, Gymboree microbial fertilizer should be evenly mixed with organic fertilizer in the ratio of 1 500 1.5/500, covered with water, stacked for 3-5 days, turned once in the middle, and then applied. When applied, it should be evenly applied to the border, and then ridged; If no organic fertilizer is applied, mix 30-50kg of slightly wet fine soil with 1 kg of biological fertilizer, apply it evenly in the border, and then ridging and covering the soil, paying attention to using it separately from chemical fertilizer. It can also be spread evenly on the surface in paddy or dry fields, and then raked into the soil immediately, so that it can't be exposed to the sun for a long time.
3. Oral fertilizer: on the basis of applying organic fertilizer or chemical fertilizer as base fertilizer, use biological bacterial fertilizer as seed fertilizer, or cover crops as seed fertilizer. After planing, apply biological bacterial fertilizer mixed with fine soil in the cover, and then sow.
4. Seed dressing: firstly, spray the seed surface with water or soybean milk and brown sugar water, then put the seed into the bacterial fertilizer and stir it so that the seed surface is evenly covered with the bacterial fertilizer, and then dry it in the shade in a cool and ventilated place to sow. After seed dressing, don't expose to the sun or leave it for too long. The dosage of bacterial fertilizer for seed dressing is related to the seed size. For small seeds such as tobacco, 50 to 100 grams per kilogram of seeds is enough, and larger seeds need more. Seeds mixed with Gymboree bacterial fertilizer should be covered immediately after sowing to prevent ultraviolet rays from destroying microorganisms in the bacterial fertilizer.
5. Spraying: It is also an application method of topdressing. Soak the biological bacterial fertilizer in a small amount of water for 4-6 hours, then add water to stir, filter with fine cloth or nylon gauze after stirring, and spray the filtrate on the back of crop leaves and fruits. During the whole growth period, it should be sprayed 2 ~ 3 times according to the crop growth situation and in combination with the critical period and the maximum effect period of crop nutrition. It is best to spray in the evening or on cloudy days without rain. The method of spraying topdressing is suitable for vegetables and close-planted crops. Spraying has obvious yield-increasing effect, but the effect is generally lower than that of soil application. The combination of soil application and spraying has the best effect.
Matters needing attention
According to the characteristics of bio-fertilizer, the following problems should be paid attention to in the use process:
First, the use of biological fertilizers requires certain environmental conditions and cultivation measures to ensure the environmental conditions needed for microbial growth and reproduction, so that fertilizers can give full play to their functions;
Second, biological fertilizer can not be applied alone, but must be applied in combination with chemical fertilizer and organic fertilizer. Only in this way can we give full play to the yield-increasing benefits of biological fertilizer;
Third, pay attention to sterilization conditions during production, transportation, storage and use.