| Chemical Farming |
Organic Farming |
| What is it? |
What is it? |
| Cultivation and production (Nutrient, pest & disease management) of crops by inorganic chemical inputs |
Cultivation and production (Nutrient, pest & disease management) of crops by biodegradable organic inputs |
Against Nature
In chemically managed soil, the plant nutrients are supplied only through inorganic source, without any organic carbon source to derive food. This ultimately deprives the soil-eco system of the growth medium |
Harmony with nature
In an organic management, the focus is on food web relations and element cycling aiming to maximize the agro-ecosystem's stability, sustainability and homeostasis (balanced equilibrium) |
Blocks The Microbial Activity
Due to the absence of carbon source, microbial population trends to be less or sometimes NIL in soil |
Increases The Microbial Life
Organics is the main source for nutrients. The soil microbes derive the food from the carbaneous source and multiply and make the soil lively, also decomposing the complex organic compounds present in the added organics |
Soil structure is destroyed
Non-availability of binding material of the soil particles result in disintegration and reduce the soil granulation. In the long run it may reduce the productive capacity of land to harbor the crops & become unfit for production |
Soil structure improves
Stable organic resins (humus) resulting from organic residue decomposition imparts stability to soil aggregates and corrects the permeability i.e., crumb like structure. This structure facilitates to improve soil aeration, water holding capacity, root penetration, while reducing the soil erosion by b aggregation of soil particles |
Soil becomes dead
While chemical farming satisfies only the crop nutrient requirements, it is not conducive for biological environment of the soil, finally resulting in a problematic soil loaded with inorganic salts |
Soils become fertile
Here the biological property of the soil is improved by addition of organic manure. Intensive biological activity promotes better symbiotic relationship between plant and the soil focusing on sustainable plant production and nutrient management. |
Alters the soil pH
Continuous use of inorganic chemicals leads to changes in the pH of the soil (either acidic or saline depending on the type of fertilizer used). It unbalances the nutrient availability status and in some cases creates toxicity to the plants |
Buffering of soils (Enables neutral pH)
Presence of colloidal matter improves the buffering capacity of the soil and Cation Exchanging Capacity. It regulates the nutrient availability due to buffering action, besides checking the toxicity levels to plants and soil microbes |
Nutrients are available only for shorter period
Certain fertilizers in the absence of microbes permanently fix on to the soil particles and may not be available for plant root absorption. In addition, the chemical fertilizers are easily water soluble and this may lead to various types of losses through leaching, evaporation, etc. |
Nutrients available for longer period
Microbes decompose the complex organic compounds to mineral components and CO2. Further the mineral elements are converted in to available plant nutrients through mineralization process. These ions are held by organic matter and soil colloids and are slowly released as nutrients over a longer period. |
Leads to erosion
Absence of binding agents (organic substances) between soil particles makes the soil particles to be easily detached by water and wind. It leads to loss of top fertile soils ultimately making the land barren and unfit for farming/cultivation |
Prevents the soil erosion
Organic soil management techniques such as organic fertilization, mulching and cover cropping increases aggregation (by organic acid), improves soil structure and therefore increase the soil's water infiltration and retention capacity, substantially reducing the risk of erosion |
Accumulation of hazardous material in soil
Over and abuse of chemical fertilizers (nitrate) & pesticides harm the biological life of the soil. The residues such as heavy metals present in the inorganic soils may pose serious health hazards. Excessive nutrient & salt application such as nitrate, causes ground water pollution, & may be linked to certain diseases in human beings |
There is no hazardous material in soil
It doesn't leave any residues/ hazardous material in the soil since all input is biodegradable & nontoxic |
