What will happen if we apply high concentration phosphate fertilizer?
What will happen if we apply high concentration phosphate fertilizer? Please introduce that the main component of ordinary calcium superphosphate is monocalcium phosphate, the content of phosphorus in fertilizer is 14% 18%, and the by-component is calcium sulfate, accounting for about 50%. Therefore, the application of common superphosphate can not only provide phosphorus nutrition for crops, but also obtain sulfur nutrition for crops. However, calcium superphosphate has low phosphorus content and many by-components. In order to overcome this shortcoming, there is a kind of phosphate fertilizer called heavy superphosphate. The manufacturing method of heavy superphosphate has been improved so that the fertilizer does not contain impurities such as calcium sulfate, so that the content of phosphorus is greatly increased and becomes a high concentration phosphate fertilizer. Therefore, the year-round application of heavy superphosphate will naturally lead to the problem of sulfur deficiency. The symptom of sulfur deficiency in crops is very similar to that of nitrogen deficiency, which is mainly characterized by the loss of green and yellowing of leaves, but from a subtle point of view, they are different. The symptoms of nitrogen deficiency begin with the lower old leaves, while the symptoms of sulfur deficiency begin with the upper new leaves. For example, when the potato is deficient in sulfur, the upper leaves are generally yellowed at first, and brown spots appear on the leaves in severe cases. The phenomenon of sulfur deficiency in soil is due to the problem of the composition of calcium phosphate and heavy superphosphate. Therefore, the editor suggests that when planting sulfur-loving crops, we should choose ordinary superphosphate or alternately apply common superphosphate and heavy superphosphate in order to reduce the occurrence of soil sulfur deficiency. Click to get more nitrogen, phosphorus, potassium application techniques click to get more chemical fertilizer application techniques
- Prev
The method of distinguishing the advantages and disadvantages of phosphate fertilizer
The following describes the methods to distinguish the advantages and disadvantages of phosphate fertilizer: observe the color and shape of phosphate fertilizer, the color of phosphate fertilizer should be grayish white, the shape is powder, if the color is white or yellow, it may be because the acid treatment is incomplete and its phosphorus content is low. Smell, phosphate fertilizer should be slightly sour, if there is no such taste, it means that it has been in production.
- Next
How to apply calcium magnesium phosphate fertilizer well
How to apply calcium magnesium phosphate fertilizer? Calcium magnesium phosphate fertilizer is a kind of multi-element fertilizer which mainly contains phosphorus and contains calcium, magnesium, silicon and other components. Calcium magnesium phosphate fertilizer is insoluble in water, non-toxic, non-corrosive, not easy to absorb moisture, not easy to caking, so it is a chemical alkaline fertilizer. It is widely used in all kinds of crops and phosphorus-deficient acidic soil. The user.
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