Man has attempted to control unwanted vegetation, the weeds, with some kind of chemical since centuries. But a real breakthrough in the chemical control of weeds was achieved in 1945 with the announcement of 2,4-D and MCPA in the USA and England, respectively, as highly selective, growth regulator type of herbicides to control broadleaf weeds in small grains. It is [...]
In this article we will discuss about the harmful effects of weeds. Learn about the harmful effects of weeds on: 1. Agriculture 2. Animal Husbandry 3. Human Health 4. Aquatic Ecosystems 5. Industry and Public Utilities 6. Woodlands and Forests. 1. Weed Menace in Agriculture: i. Weeds Reduce Crop Yields and Production Efficiency: Growing with the crop plants, weeds cause [...]
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, [...]