Impact of Different Herbicidal Treatments on Hybrid Maize: A Review

Maize (Zea mays L.) is an important cereal crop grown in the world. The living factors (insects, pests, weeds) and non-living factors (drought, salinity, heat stress) affects the yield of maize; among which weeds are considered as most destructive in decreasing the maize crop yield. Weeds negatively affect the grain yield of maize and increase the production cost of farmers. Various herbicides are used to control weeds in maize including atrazine, tembotrione etc. Atrazine is a pre-emergence herbicide used to control weeds. It is a selective herbicide used to control broad-leaved weeds and annual grasses. Tembotrione is a PoE (Post-emergence) broad spectrum herbicide used to control broad-leaved and grassy weeds in maize. This herbicide effectively reduces the density and dry weight of most of the weeds present in maize crop. Tembotrione gives lower weed index and higher weed control efficiency, when applied at 150 g ha−1 + surfactant and 125 g ha−1 + surfactant at 20 DAS. These herbicide shows no phytotoxicity effect on the crops. They are totally safe for weed control and enhance the productivity and profatibilty of the crop.