Common Sense about Fertilizer
1. Q: Urea can be mixed with a variety of pesticides to spray,is it correct?
A: Yes. The water solution of urea is neutral and stable. It can be used in combination with chemical weeding, potion and other fertilizers,and the effect will be better.
2. Q: Microbial pesticides can be used in combination with chemical fertilizers, is it correct?
A: No. Because biological pesticides are living bacteria, and chemical fertilizers are volatile and corrosive, which will make these bacteria inactivated. For example, chemical fertilizers mixed with microbial pesticides such as Bacillus cereus and insecticidal bacteria, it will kill microorganism easily and reduce the effect.
3. Q: human excrement can mix with ferrous sulfate, is it correct?
A: Yes. In human urine manure, ferrous sulfate can be used to transform the volatile ammonium carbonate in human excretion into a solid ammonium sulfate, which can help to deodorize the manure and avoid the loss of nitrogen volatilization.
4. Q: Plant ash can be mixed with manure and compost, is it correct?
A: No. Plant ash is commonly used as potash fertilizer, which is alkaline. If it is mixed with manure and compost, it can accelerate nitrogen gas volatilization and loss of ammonia, so it is not suitable for application.
5. Manure and compost can be mixed with calcium superphosphate or calcium magnesium phosphate, is it correct?
Answer: correct
Applying calcium superphosphate and calcium-magnesia phosphate fertilizer mixed with manure, compost, wet compost that have been composted, it can reduce the contact surface area between phosphorus fertilizer and soil, avoiding phosphate ions is fixed in soil; and organic fertilizers decompose various organic acids that can cause the soil to be released to the soil for absorption, and the effect can be increased by a third.
6. What’s the best suitable conditions for the application of sparingly soluble phosphorus fertilizers.
Answer: Base fertilizer, acid soil. Because of its slightly solubility, insoluble fertilizer will work in the soil after a period of time,so it should be used as foundation fertilizer. Insoluble fertilizer can be used to promote dissolution in acidic soils.
