The following points highlight the top six factors affecting the persistence of weeds. The factors are: 1. Selective Invasion 2. Prolific Seed Production 3. Longevity of Weed Seeds in Soil 4. Vegetative Propagation 5. Rapid Dispersal 6. C4 Plant Physiology. Factor # 1. Selective Invasion: Weed species differ widely in their soil and climatic requirements. Every soil seems to be [...]
In this article we will discuss about the cultural, physical, biological and bioherbicidal control of weeds. Method # 1. Cultural Methods of Weed Control: (a) Good Crop Husbandry Practices: Any weed management programme on farm land essentially begins with the adoption of good crop husbandry practices leading to a sturdy crop which could overpower the weeds, and make their subsequent [...]
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 [...]