Description : A application method to avoid herbicide drift a).Misting b).Wick wiping c).Foliar spray d).Basal barking
Last Answer : b).Wick wiping
Description : The most imprecise way of herbicide application a).Misting b).Aerial spraying c).Foliar spray d).Basal barking
Last Answer : a).Misting
Description : An eradication method of weed control a). Killing underground parts of weeds by tillage b). Using soil sterilants c). Repeated foliar application on perennial weeds d). All of these
Last Answer : d). All of these
Description : The most efficient use of potassium is achieved by— (A) Broadcasting at the sowing time (B) Top dressing after one month of sowing (C) Basal placement at the sowing time (D) Foliar spray
Last Answer : (C) Basal placement at the sowing time
Description : Basal applications will be more effective during which stage a). active b). mature c). Dormant d). None
Last Answer : c). Dormant
Description : Method used to control small brushes a). spraying b). uprooting c). basal barking d). all
Last Answer : d). all
Description : Maximum concentration of urea for foliar spray
Last Answer : Ans. 6%
Description : Cheapest N fertilizer, suitable for foliar spray
Last Answer : Ans. Urea (46%N)
Description : Herbicide application is mainly influenced by a). Application rate, timing and methods b). Application rate, weather conditions and soil types c). weather conditions, soil types and water chemistry d). All
Last Answer : a). Application rate, timing and methods
Description : A herbicide requiring good spray coverage of all foliage for effective control of a weed population a).Paraquat b). Glyphosate c). Atrazine d). Isoproturon
Last Answer : a).Paraquat
Description : . Herbicide spray drift can be reduced by a). Increasing the droplet size b). Forming a foam c). Making invert emulsion d). All of these
Description : Commonly used wetting agent for herbicide spray in India a). Soap solution b). Teepol c). Uphar d). All of these
Description : Three-phased integrated technology including cutting, spray of glyphosate and land utilization as per its capability for the management of Lantana camara was developed at a). Jabalpur, MP b). Palampur, HP c). Jaipur, Rajesthan d). Hisar, Haryana
Last Answer : b). Palampur, HP
Description : Amount of Alachlor 50% EC for spray ing 12 ha maize field (given the dose 1.5 kg ai/ha) a). 36 kg b). 18 kg c). 54 kg d).12 kg
Last Answer : a). 36 kg
Description : Volume of spray fluid in ultra low vol ume spraying a).300-500 l/ha b).2-5 l/ha c).25-50 l/ha d).100-150 l/ha
Last Answer : b).2-5 l/ha
Description : Volume of spray fluid in ultra low vol- ume spraying a).300-500 l/ha b).2-5 l/ha c).25-50 l/ha d).100-150 l/ha
Description : Surfactants.................................. the surface tension of spray droplets a). do not affect b). decrease c). increase d). All
Last Answer : b). decrease
Description : A farmer, in order to save one spraying operations mix herbicides, insecticide, fungicide etc. at the time of spray, to achieve this feature add a). Compatibility agents b). Spreaders c). Activators d). Adhesive
Last Answer : a). Compatibility agents
Description : Constant physical agitation of the spray liquid during field operations can be minimised by adding a). Emulsifiers b). Coupling agents c). Surfactants d). Humicants
Last Answer : a). Emulsifiers
Description : The odd one amongst the following a). Adjuvants b). Activators c). Spray modifiers d). Utility modifiers
Last Answer : a). Adjuvants
Description : Application of bio-herbicides a). Aerial sprays b). Cut and paste c). Soil application d). All
Last Answer : d). All
Description : Naphthalic anhydride represented a major pathway of its degradation in soil through a). hydrolysis b). dealkylation c). oxidation d).decarboxylation
Last Answer : d).decarboxylation
Description : A selectivity achieved due to manipulation of time of application is called a).Biochemical b). Chronological c). Chemical d). Physical
Last Answer : b). Chronological
Description : Mid morning application of which of the herbicides is better than its evening applica tion a). Butachlor b). Alachlor c). Glyphosate d). Paraquat
Last Answer : d). Paraquat
Description : Application of which herbicide at 5-10% of emergence in potato is more common in India? a). Paraquat b). Diquat c). EPTC d). Both a and b
Last Answer : d). Both a and b
Description : Application of organophosphorus group of pesticides along with which herbicides cause injury to crops a). Triazines b). Ureas c). Both d). None
Last Answer : c). Both
Description : Direct contact herbicide application can be achieved by a). Re-circulating sprayer b). Weed wick wiper c). Roller applicator d). All
Description : Which altra low volume sprayer is used for controlled droplet application a). Herbi sprayer b). Micron herbi sprayer c). Both a and b d). None of these
Last Answer : c). Both a and b
Description : A weed escape/resist pre-emergence atrazine application in maize under mid hill conditions of Himachal Pradesh a). Ageratum conuzoides b). Commelina banghalensis c). Brachiaria ramosa d). All of the above
Last Answer : d). All of the above
Description : If cost of the herbicide is INR 1000 and application cost is INR 500 and net return over weedy is INR 15000, MBCR will be a). 35 b). 25 c). 15 d). 10
Last Answer : d). 10
Description : Processes that break down the herbicides after application includes............................ a). Photo and microbial degradation b). adsorption and uptake c). leaching and runoff d). volatilization and run off
Last Answer : a). Photo and microbial degradation
Description : factors to consider in improving the effectiveness of herbicides application a). Increasing management diversity b). application timing c). inherent efficacy of herbicide d). All
Description : Which of the plants will show more susceptibility to herbicide application? a). Stressed b). Healthy c). Old d). all
Last Answer : a). Stressed
Description : In case of combined application of herbicides, application rate can be reduced in which of the following interaction a). Antagonistic b). Synergistic c). Additive d). None
Last Answer : b). Synergistic
Description : Transpiration through leaves is called as (1) Cauline transpiration (2) Foliar transpiration (3) Cuticular transpiration (4) Lenticular transpiration
Last Answer : (2) Foliar transpiration Explanation: Most of the transpiration occurs through foliar surface or surface of the leaves. It is known as foliar transpiration. Foliar transpiration accounts for over 90% of the total transpiration.
Last Answer : Foliar transpiration
Description : A concentrated band of a herbicide about 7 -10 cm below the soil surface is required to control a). Cyperus rotundus b). Convolvulus arvensis c). Oxalis d). All
Description : Herbicide loss by volatilization increases as which of the following increases a). Vapour pressure b). Soil moisture content c). Soil temperature d). all
Description : Persistence herbicides pose hazard in soil when a). High persistence herbicides are used b). Crop failure necessitate re-planting c). Susceptible crop follows a short crop d). All
Description : Herbicide residue in soil are undesirable because of a). Injury to sensitive crops b). Accumulate in the produce c). Inhibit soil micro-organisma d). All
Description : Herbicides of which group are generally incorporated in soil? a). Carbamate b). Dinitroaniline c). Triazine d). Both a and b
Description : Typically pre-plant soil incorporated herbi cide a). Fluchloralin b). Trifluralin c). EPTC d). All of these
Description : A herbicide both soil and foliage active a). 2,4-D b). Isoproturon c). Diuron d). All of these
Description : Which is soil acting herbicide? a). Fluchloralin b). EPTC c). Both a and b d). Glyphosate
Description : Most dominant factor influencing weed composition in a field is a). Soil moisture b). Soil type c). Soil texture d). Soil temperature
Last Answer : a). Soil moisture
Description : Industrial weeds can be controlled by using a). Non selective herbicides b). Selective herbicides c). Soil sterilants d). Both a and c
Last Answer : d). Both a and c
Description : A dominant weed of puddle paddy soil a). Echinochloa b). Caesulina c). Eclipta sp d). All of these
Description : Environmental factors which increases the allelopathic effects are a).low soil fertility b). Warm wet condition c). Cold wet conditions d). a and b
Last Answer : d). a and b
Description : In a soil-free system, the most effective safener was the ……………….one most in structure to the herbicide a). similar b). different c). systematic d). contact
Last Answer : a). similar
Description : A herbicide applied to the soil before planting a crop is called a a). pre-emergence b). Post-emergence c). Pre-plant d). None
Last Answer : c). Pre-plant