Traditional Culture Encyclopedia - Traditional virtues - What is inorganic fertilizer (fertilizer)? What are its advantages and disadvantages compared with organic fertilizer?
What is inorganic fertilizer (fertilizer)? What are its advantages and disadvantages compared with organic fertilizer?
Organic fertilizer-fertilizer made from animal and plant residues or animal manure. Carbonaceous materials, mainly derived from plants and/or animals, are applied to soil to provide plant nutrition as their main function. Such as compost, fish meal, bone meal, manure, green manure, etc., are suitable for long-term planting, which can improve the physical and chemical properties of soil and improve the quality of agricultural products, such as increasing sweetness and color.
Advantages of inorganic fertilizer
1, and the nutrient content in the fertilizer is high.
The nitrogen content in 1 kg urea is equivalent to 75 kg ~ 90 kg of human feces, and the phosphorus content in 1 kg of calcium superphosphate is equivalent to 60 kg~80 kg of manure.
The potassium content of 1 kg potassium sulfate is equivalent to about 10 kg in plant ash. 2. Most chemical fertilizers are soluble in water, which can be quickly absorbed by crops after being applied to soil, and the fertilizer efficiency is fast and remarkable. Can make the yellow, thin and short seedlings turn green in a short time.
3. There are abundant sources of raw materials for the production of chemical fertilizers, such as air and water for the production of nitrogen fertilizer. China is also rich in coal, oil and natural gas, and the chemical fertilizer industry is developing rapidly. China is rich in phosphorus resources and deficient in potassium resources.
Disadvantages of inorganic fertilizers
Compared with farmyard manure, chemical fertilizer contains a single nutrient, which can not meet all kinds of nutrients needed for plant growth, and its cost is also high.
Long-term heavy use of chemical fertilizers:
(1) The number of beneficial bacteria in soil decreased, the air permeability decreased, and the ability of soil hardening and water and fertilizer conservation decreased.
(2) The fertilizer utilization rate is low, which wastes resources and pollutes the environment.
(3) The quality of crops has declined.
Happy * full * fat * industry.
- Previous article:Is spandex the same as gold velvet fabric
- Next article:The Handbook of Civil Servant Etiquette latest txt full set download
- Related articles
- What are the basic skills of street dance?
- What are the children's dramas in southern Fujian?
- What are the names of boys named Dong that belong to the earthy five elements?
- What does the common sense of Chinese studies include and what are the traditional cultures?
- What is the standard of the secondary schools in Mudanjiang?
- 6 18 poster promotion background -6 18 What does it mean?
- The appearance characteristics of Yang Shulin
- How about Fenggang Longfeng freight in Dongguan?
- Agriculture¡¤Qin, Han, Wei, Jin, Southern and Northern Dynasties Agricultural Science¡¤The Development of Traditional Agricultural Thoughts
- Sing a folk song for the party and listen to the difference between the three melodies.