Many chemical fertilizers are commonly used to improve soil fertility and productivity. Urea, TSP, MP, Gypsum, Borax, Ammonium nitrate etc. are used familiarly all over the world. Though these can improve the fertility of soil for the time being but in the long run they will become toxic to the soil and make hamper to the microorganisms. Now the question is which chemical is more hazardous to the microorganisms?
What kind of chemical fertilizers are more detrimental for destroying microorganisms in soil?
Fertilizations influence both the aboveground biomass and the belowground microbe biomass. Soil microbial communities play critical roles in ecosystem function and regulate key processes such as carbon and nitrogen cycles During the long-term evolution process, the soil, plants and microbes have co-evolved, forming relatively stable relationships under certain ecosystems. In this relationship, genetic variation in plant phenotypes can change soil processes and biotic communities, whereas soil gradients and microbial communities can influence the expression and evolution of plant phenotypes. When exterior N and P are input into the local ecosystem, the given balance between soils, plants,, and microbes will be destroyed, and a new balance will be formed. For example, in a 50-year-old fertilization experiment, the composition of soil nitrate-reducing, denitrifying and total bacterial communities co-varied with primary production and both were strongly linked to soil properties
The synthetic chemicals in the chemical fertilizers adversely affect the health of naturally found soil micro-organisms by affecting the soil pH. These altered levels of acidity in the soil eliminate the micro-organisms beneficial to plant and soil health as they help to increase the plants’ natural defenses against pests and diseases. These helpful micro-organisms consist of antibiotic-producing bacteria and mycorrhizal and other fungi which are found in healthy soil. The use of chemical fertilizers also jeopardizes the health of bacteria that fix the nitrogen balance in the soil. These nitrogen-fixing bacteria are responsible for converting the atmospheric oxygen into a form of nitrogen that can be used readily by plants
Infact , no chemical fertilizer is detrimental to any microbe of soil , we just creaet a wrong hype. Why dont we look at the effect of fungicides/herbicides/pesticides having so many reaction products , so immune to biological/microbial degradation for years , but we never debate these issues. Just imagine , if this is the case, our soils would have lost their carrying capacity to zero after getting exposed to so many years of feralization . Yes , i agree , if there is imbalance in fertilization and over-feralization , soil ecology will be adversely affected. We developed a microbial consortium with five component microbe’s , each having resistance etc chemical fertilizers up to 900-1200 ppm of uredo SSP and 600 ppm of ferrous or zinc sulphate. Where is the notion that continuous use of chemical fertilizers has deteriorated the soil fertility’s and productivity to an irreparairable limit. I don’t agree ,,dear friends .
Sustainable agriculture is an important global issue. The use of organic fertilizers can enhance crop yield and soil properties while restraining pests and diseases. The objective of this study was to assess the effects of long-term use of chemical and organic fertilizers on tea and rhizosphere soil properties in tea orchards. Inductively coupled plasma mass spectrometry (ICP-MS) and high-throughput sequencing technology analyses were used to investigate heavy metals content and bacterial composition in rhizosphere soils. Our results indicated that organic fertilizer treatment significantly decreased Cu, Pb and Cd contents in rhizosphere soil sample. The results also showed that treatment with organic fertilizer significantly decreased the contents of Cd, Pb and As in tea leaves. Furthermore, organic fertilizer significantly increased the amino acids content of tea and the pH of the soil. The use of organic fertilizer significantly increased in the relative abundance of Burkholderiales, Myxococcales, Streptomycetales, Nitrospirales, Ktedonobacterales, Acidobacteriales, Gemmatimonadales, and Solibacterales, and decreased the abundance of Pseudonocardiales, Frankiales, Rhizobiales, and Xanthomonadales. In conclusion, organic fertilizer can help to shape the microbial composition and recruit beneficial bacteria into the rhizosphere of tea, leading to improved tea quality and reduced heavy metals content in rhizosphere soil and tea leaves.