A Resource Hub For Young Agriculturists
Physical properties of fertilizers: Fertilizer materials of very low water solubility generally must be ground to small particle size to ensure sufficiently rapid dissolution in the soil and utilization by …
What are biogeochemical cycles? Nearly 30 to 40 elements are required for the proper growth and development of living organisms. Most important of these are C, H, O, P, K, …
The fate of herbicide in soil: When herbicides are applied to the soil, only a small portion of herbicide is absorbed by the plant. The rest is being lost through …
Herbicide selectivity referred to the phenomenon where the chemicals kill the target plant species in a mixed plant population without harming or only slightly affecting the other plants. The differential …
Factors affecting the soil applied herbicide and foliar applied herbicide. Factors affecting herbicide application (soil applied and foliar applied) Factors affecting foliar applied herbicide: 1. Morphology of the leaf. 2. …
Difference between Natural and Synthetic Rubber Natural rubber Synthetic rubber 1. The rubber which is made from latex of Hevea plant. 1. The rubber which is made from unsaturated hydrocarbon. …
Ion Uptake Mechanism (Contact exchange theory, CO2 exchange theory) Ion Uptake Theory Scientists have postulated many theories about adsorption of ions, among them following 2 are most important 1. Contact exchange theory. 2. CO2 exchange theory. 1. Contact exchange theory Contact exchange theory In 1951 aenni and his associates develop this theory. This is a process of direct ion exchange between root cells and soil colloids. They observe that cations of soil colloids are generally moving around their own shell and similarly H+ ions of root surface are also moving around their own shell. In this process, once upon a time when two shells are come in contact closely they overlap each other. Then the ions of these two shells, exchange each other. Result by, H+ ions are replaced by other cations. H+ [Root] + K+ [Clay] → K+ [Root] + H+ [Clay]. 2. CO2 …
Ion uptake and Transport Mechanism Ion uptake mechanism Mechanism: Ion uptake mechanism is a two way processes Step 1: The first step of the ion uptake by the …
Definition, properties, and classification of colloids are given below. Definition of Colloids Graham was the first man who introduced the term colloids in 1849. A Colloid may be defined as …
Essential plant nutrients, available forms and sources Nutrients Available forms Specific sources Organic Inorganic Carbon (C) CO2 (mainly by stomata) Air, atmosphere Hydrogen (H) H2O, H+ …
