In this article we will discuss about the competition of weeds and crops for mineral nutrition, soil moisture and light. Competition for Mineral Nutrients: Analysis of a large number of weeds reported by different authors during the last five decades have shown that the weeds absorb and accumulate mineral nutrients in higher concentrations than the common crop plants. For instance, [...]
The following points highlight the top five factors affecting weed-crop competition. The factors are: 1. Period of Weed-Crop Competition 2. Weed and Crop Densities 3. Weed and Crop Species 4. Cropping Practices 5. Climatic Influences. Factor # 1. Period of Weed-Crop Competition: Farmers often assume that removing the weeds any time during the growing season shall benefit the crops equally well. Substantial evidence, [...]
In this article we will discuss about:- 1. Definition of Weeds 2. Misutilisation of Weeds 3. Distribution 4. Factors Governing the Weed Composition 5. Propagation 6. Dispersal 7. Economic Uses 8. Prevention 9. Control 10. Eradication 11. Integrated Weed Management. Definition of Weeds: Jethro Tull, a Great Britain farmer, was the first person to use the term weed as a [...]