Description : To manage grassy weed flora in barley which of the herbicides is to be applied a). Pendimethalin b). Isoproturon c). a and b d). Metsulfuron
Last Answer : c). a and b
Description : With poor weed management, a field could shift to a). Predominant weed species b). Species not effectively controlled c). Species not responded to control meas ures d). All the above
Last Answer : d). All the above
Description : The most dominant aquatic weed Eichhornia crassipes is controlled by
Last Answer : Ans.Neochetina bruchi
Description : First biologically controlled weed is
Last Answer : Ans.Lantana camara
Description : Molya disease resistant variety of barley is
Last Answer : Ans.RD 2052
Description : ‘Pearl Barley’ is suited for
Last Answer : Ans.Kidney disorders
Description : Critical stage for irrigation in barley
Last Answer : Ans.Active Tiplering Stage (30–35 DAS)
Description : The seed rate of barley is
Last Answer : Ans.75-80 kg/ha
Description : Six rowed barley is
Last Answer : Ans.Hardium vulgare
Description : Botanical name of two rowed barley
Last Answer : Ans.Hardium distichoum
Description : Most dominated weed species in rice field is
Last Answer : Ans.Echinochloa spp.
Description : BIPOLARIS is used to control weed
Last Answer : Ans.Johnson grass
Description : Which of the following weed having herbicide resistance?
Last Answer : Ans.Avena fatua
Description : Stale seed bed technique of weed control is a
Last Answer : Ans.Cultural method
Description : The practice of flushing out germinable weed seeds before crop sowing is called
Last Answer : Ans.Stale seed bed
Description : What is the Critical Period of Crop-Weed Competition for sugarcane?
Last Answer : Ans.30-120 DAS
Description : What is the Critical Period of Crop-Weed Competition for Upland rice condition?
Last Answer : Ans.Entire period of crop growth
Description : What is the Critical Period of Crop-Weed Competition for transplanted rice?
Last Answer : Ans.30-45 DAS
Description : Which of the following stages of a crop are more prone to weed competition?
Last Answer : Ans.Germination to seedling
Description : The total stem parasitic weed of Lucerne?
Last Answer : Ans.Cuscuta spp
Description : The total root parasitic weed of Tobacco?
Last Answer : Ans.Orabanchi spp.
Description : Semi stem parasitic weed of Mango?
Last Answer : Ans.Loranthus spp.
Description : Semi root parasitic weed of Sorghum and Sugarcane?
Last Answer : Ans.Striga spp.
Description : Weed that depends for its growth on its host plant?
Last Answer : Ans.Parasitic weed
Description : Undesirable, troublesome weed difficult to control
Last Answer : Ans.Noxious weed
Description : Problematic weed, whose seed once mixed with crop seed is extremely difficult to separate?
Last Answer : Ans.Objectionable weed
Description : Cropped along with wild land weed are known as?
Last Answer : Ans.Facultative weeds
Description : Stem parasitic weed of lucerne is
Last Answer : Ans.Cuscuta reflexa (Doddar)
Description : The objectionable weed of berseem is
Last Answer : Ans.Kasini (Chicorium intybus)
Description : Objectionable weed of wheat
Last Answer : Ans.Convolvulus arvensis
Description : Weed caused relatively more loss in rice productivity, when it is
Last Answer : Ans.Direct seeded
Description : Parthenium hysteroforus is biologically controlled by
Last Answer : Ans.Zygrogramma bicolarata
Description : To manage mixed weed flora in barley which of the herbicides is to be applied a).2,4-D b). Isoproturon c). a and b as tank mix d). None of these
Last Answer : c). a and b as tank mix
Description : The following graph depicts changes in two populations (A and B) of herbivores in a grassy field. A possible reason for these changes is that :
Last Answer : The following graph depicts changes in two populations (A and B) of herbivores in a grassy ... completed more successfully for food than population A
Last Answer : The following graph depicts changes in two populations (A and B) of herbivores in a grassy ... Population A produced more offspring than population B
Description : The following graph depicts changes in two populations (A and B) of herbivores in a grassy field. A possible reason for these changes is that (a) population A produced more offspring ... populations in this habitat decreased (d) population B competed more successfully for food than population A.
Last Answer : (c) both plant populations in this habitat decreased
Description : Such weeds, that are grown in cultivated field?
Last Answer : Ans.Obligate weeds
Description : The water content between Field capacity (-1/3 bar) to PWP (-15 bar) is called
Last Answer : Ans.Available water
Description : The method in which field divided into number of strips by bunds of around 15 cm height is
Last Answer : Ans.Border strip method
Description : The total depth of water (cm) required y a crop during its duration in the field
Last Answer : Ans.Delta
Description : The flow of excess water from the field after saturation of soil.
Last Answer : Ans.Runoff
Description : Two or more than two crops of different heights cultivated simultaneously on the same field is called as
Last Answer : Ans.Multistoreyed/Multitired/Multi-level cropping
Description : One crop variety grown alone in pure stands at normal density in a field
Last Answer : Ans.Sole cropping
Description : Which bacterium is used for nitrogen fixation in sugarcane field?
Last Answer : Ans.Acetobactor diazotrophicus
Description : The most frost affected crop among all field crops?
Last Answer : Ans.Gram
Description : Zinc and sulphates deficiency in wheat field reported in
Last Answer : Ans.Punjab
Description : Common herbicide used in rice crop field?
Last Answer : Ans.Anilophos and Butachlor.
Description : Gas emitted from rice field is
Last Answer : Ans.CH4 (Methan).
Description : The nursery area required for providing seedlings for transplanting 1 ha rice field
Last Answer : Ans.1000 m2 (1/10 ha)
Description : Optimum depth of sowing for most of field crops
Last Answer : Ans.3-5 cm