1, to ensure the use of cooked Unfamed organic fertilizers contain harmful substances such as pathogenic bacteria and weed seeds, which may cause problems such as breeding of insect pests, spreading of weeds, and burning of seedlings after use, which should attract sufficient attention. 2, pay attention to master the use of methods Organic fertilizer can be divided into two categories: solid organic fertilizer and liquid organic fertilizer. Generally, solid organic fertilizer is used as a base fertilizer, and liquid organic fertilizer is used as top dressing. In the use of methods, powdered organic fertilizer can be applied before tillage, granular organic fertilizer can be applied, but also by applying root fertilizer; liquid organic fertilizer can be sprayed, poured or dripped at different stages of crop growth. With solid organic fertilizer to provide nutrients for the crop. 3, pay attention to scientifically determine the amount of use The use of organic fertilizer should follow the principle of soil testing and formula fertilization, and formula fertilization should be based on soil nutrient content, target yield, and nutrient content of fertilizers. Generally, 300 to 500 kg of solid organic fertilizer is applied per acre for field crops, and for each vegetable plant and fruit crop. Solid organic fertilizer 500 ~ 1000 kg, organic fruit and vegetable crops applied per acre solid organic fertilizer 1000 ~ 2000 kg. The use of liquid organic fertilizer is determined according to different crop types and different stages of production. Generally, the use amount increases with the seedling stage, the growth period of stems and leaves, and the fruit growth period. Electric Surgical Table,Ophthalmic Operating Table,Ophthalmic Surgery Table,Electrical Operating Table NINGBO MEDICAL EQUIPMENT CO.,LTD , https://www.techartmeds.com