Types of fertilizers prohibited for use in crops
Fertilizer is necessary for crop production, but not all fertilizers can be used. Some fertilizers used in crops not only can not increase the income of crops, but also cause pollution and affect the health of consumers. The following is a description of the types of fertilizers that are prohibited from being used on crops. 1. Organic fertilizer (waste fertilizer) made from city, hospital, industrial area garbage and harmful sludge as organic raw materials. 2. Immature human feces and urine. 3. Uncooked cake fertilizer. 4. Calcium superphosphate or other phosphate fertilizer (waste phosphate fertilizer) produced from waste acid. 5. Foliar fertilizers containing hormones or hormones. 6. Chlorine-containing fertilizers (ammonium chloride, potassium chloride, chlorine-containing compound fertilizers) are prohibited to be used on taboo crops. 7. Fertilizers containing nitrate nitrogen (including ammonium nitrate, potassium nitrate compound fertilizer and compound fertilizer containing nitrate nitrogen) are prohibited to be used on vegetables.
- Prev
Potassium chloride is suitable for use with alkaline fertilizers
Potassium oxide is a physiological acid fertilizer, long-term application in the soil should pay attention to lime and other alkaline fertilizers to prevent soil acidification, the most suitable in calcareous, alkaline soil application. Potassium chloride can not be applied to saline soil, which will aggravate salt damage. Potassium chloride contains chlorine, which is related to crop quality. Currently...
- Next
Advantages and disadvantages of slow release fertilizer
There are many varieties of fruit trees, and their whole life can be divided into young tree stages. in the early fruiting stage, the demand for nutrient elements is different in each of the five periods, such as peak fruiting period, late fruiting stage and senescence period. a large amount of nitrogen and phosphorus supplies are needed: in the fruiting period, due to the need for a large number of fruits, it is also necessary.
Related
- Fuxing push coffee new agricultural production and marketing class: lack of small-scale processing plants
- Jujube rice field leisure farm deep ploughing Yilan for five years to create a space for organic food and play
- Nongyu Farm-A trial of organic papaya for brave women with advanced technology
- Four points for attention in the prevention and control of diseases and insect pests of edible fungi
- How to add nutrient solution to Edible Fungi
- Is there any good way to control edible fungus mites?
- Open Inoculation Technology of Edible Fungi
- Is there any clever way to use fertilizer for edible fungus in winter?
- What agents are used to kill the pathogens of edible fungi in the mushroom shed?
- Rapid drying of Edible Fungi