Description : Flooding – a worldwide crop husbandry method of controlling weeds in a). Maize b). Sugarcane c). Buckwheat d). Rice e).None
Last Answer : d). Rice
Description : The first rule of weed prevention a). Regular survey to identify new weeds b). Destruction of weeds before they set seed c). Clean seed d). Clean farm equipments and irrigation water
Last Answer : c). Clean seed
Description : Dredging is most effective treatment for controlling a). Parasitic weeds b). Lantana c). Agrestals d). Aquatic weeds
Last Answer : d). Aquatic weeds
Description : Successful weed management is based on a). Knowledge on weed biology b). Survey on the nature of weed problem c). Whole farm planning d). Removal of weeds before flowering i. a & b ii. b & d iii. c & d iv. All
Last Answer : v. All
Description : Dryland weeds usually have a). deep root b). hairyness c). Mucilaginous stem d). all
Last Answer : d). all
Description : The most systematic method for classifying weeds is based on a). Morphology b). Life history c). Habitat d). Phylogenetic
Last Answer : d). Phylogenetic
Description : The ‘condition influences’ directly plant ability in exploring resources a). Soil density b). Soil CO2 c). Soil N d). Soil water
Last Answer : a). Soil density
Description : Flooding is an effective strategy to control a). Avena ludoviciana b). Sorghum halepense c). Cynodon dactylon d). All e). None
Last Answer : a). Avena ludoviciana
Description : Practices using direct radiant energy of the sun a). Soil solarization b). Micro-waves c). Flaming d). All
Last Answer : a). Soil solarization
Description : Besides providing N Azolla is used for weed control in a). Wheat b). Rice c). Castor d). Linseed
Last Answer : b). Rice
Description : Weed control aims to putting down weed infestation a). Already present b). a + future infestations c). b + introduction from the adjacent fields d). Combining the available techniques in the optimum level
Last Answer : a). Already present
Description : A system approach based on whole land use planning a). Weed eradication b). Weed control c). Weed prevention d). None
Last Answer : d). None
Description : A farming practice influencing weed floristic diversity a). Fertility manipulation b). Crop rotation c). Intercropping d). All e). None
Last Answer : d). All
Description : Inter-culture with bullocks in standing water a). Rice b). Sorghum c). Pearlmillet d). all
Last Answer : a). Rice
Description : Cultivation of water chestnut (Trapa bispinosa) is abandoned in India due to a). Lantana camara b). Eichhornia c). Mikania micrantha d). Acacia mearnssi
Last Answer : b). Eichhornia
Description : The herbicidal activity of 2,4-D at the first time was reported by a). Hammer and Tukey (1944) b). Zimmernam and Hitchcock (1942) c). Nutman and Blackman (1945) d). None
Last Answer : b). Zimmernam and Hitchcock (1942)
Description : The first chemical shown to have herbicidal activity a). 2,4-D b). Bordeux mixture c). Paraquat d). 2,4- DB
Last Answer : b). Bordeux mixture
Description : A companion crop a). Hairy vetch b). Winter rye c). Cowpea d). All
Description : Bioagent for controlling Parthenium hysterophorus a). Bactra verutana b). Zygogramma bicolorata c). Chrysolira d). Flea beetle
Last Answer : b). Zygogramma bicolorata
Description : Spudding involving hand weeding/ hoeing added by a sharp edged sickle is most common in a). Wheat b). Sugarcane c). Sesame d). Rice
Description : Azolla pinnata is a). a fern b). an algae c). a gymnosperm d). an angiosperm
Last Answer : a). a fern
Description : Eradication is possible in following weed situations a). Ageratum conyzoides b). Phalaris minor c). Parthenium hysterophorus d). Lantana
Last Answer : d). Lantana
Description : A weed poisonous to animals and human beings a). Datura metal b). Ammannia baccifera c). Chenopodium d). Urtica sp
Last Answer : a). Datura metal
Description : Man associated with ‘Horse Hoeing Husbandry’ a). Zimdahl Robert L. b). Molish c). Jethro Tull d). Aspinall and Milthorpe
Last Answer : c). Jethro Tull
Description : The natural product explored as commercial herbicide a). glufosinate b). dicamba c). cinmethylin d). all
Description : Hans Molish is associated with a). Competition b). Eutrophication c). Allelomediation d). Allelopathy
Last Answer : d). Allelopathy
Description : A lowland rice sedge a). Cyperus iria b). Cyperus difformis c). Cyperus esculentus d). All
Description : A sedge with rhizomes a). Commelina obliqua b). Cyperus rotundus c). Scirpus sp d). Eleocharis
Last Answer : b). Cyperus rotundus
Description : A weed with a funnel shaped corolla a). Medicago denticulata b). Vicia sativa c). Convolvulus arvensis d). Scirpus sp
Last Answer : c). Convolvulus arvensis
Description : The partial root parasite a). Cuscuta b). Loranthus c). Striga d). Orobanche
Last Answer : c). Striga
Description : Eichhornia crassips is a representative of a). Free floating b). Rooted floating c). Rooted submerged d). Emergent
Last Answer : a). Free floating
Description : Which of the following causes itching and inflammation a). Ammannia baccifera b). Solanum nigrum c). Urtica sp d). Lantana camara
Last Answer : c). Urtica sp
Description : A weed having spines as adaptations that repel grazing a). Solanum nigrum b). Solanum xanthocarpus c). Parthenium d). Ageratum
Last Answer : b). Solanum xanthocarpus
Description : A weed with a balloon structure for effective dissemination a). Physalis minima b). Avena fatua c). Phalaris minor d). Amaranthus viridis
Last Answer : a). Physalis minima
Description : A weed with a trailing stem a).Convolvulus arvensis b). Digitaria sanguinalis c). Cuscuta sp d). Cynodon sp
Last Answer : a).Convolvulus arvensis
Description : The first prominent instance of biochemical mimicry based crop associated weed under Indian perspective is a). Saccharum spontaneous in sugarcane b). Phalaris minor in wheat c). Wild rice (Oryza longistaninata) in rice d). Itch grass (Rottboellea cochinchinensis) in upland rice
Last Answer : b). Phalaris minor in wheat
Description : Simple perennials are reproduced by a). Rhizomes b). Tubers c). Corms d). Seeds
Last Answer : d). Seeds
Description : Commelina benghalensis bearing shortlived blue coloured flowers is a a). Monocot b). Dicot c). Spermatophyte d). Pteridophyta
Last Answer : a). Monocot
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 : Egeria - Anacharis, Water Weed
Last Answer : DESCRIPTION: E. densa, commonly known as Anacharis and Water Weed, is an aquatic perennial native to the warm and temperate regions of South America. It is now naturalized in Central and North America, ... new plants. Cuttings may also be taken and rooted. VARIETIES: E. densa; E. canadensis.
Description : Alternanthera - Alligator Weed, Parrot Leaf (Alternan'thera)
Last Answer : DESCRIPTION: A. ficoidea is a tender, aquatic perennial and is commonly known as Alligator Weed and Parrot Leaf. This dwarf plant only grows 2 inches high. Its narrowly oval, green leaves have wavy ... A. bettzickiana (green foliage); A. sessilis (bronze foliage); A. variegata (variegated foliage).
Description : Weed Sprayers
Last Answer : One of the main problems farmers everyday are weeds. Together with pests, weeds stifle the growth of crops since they compete with the crops for food and sustenance from the ground. For a ... but their functions remain the same: to keep your crops healthy by killing their erstwhile competition.
Description : The tillage that is done immediately after crop harvesting to remove the weeds and to restore soil structure is? A. strip B. sub-soil C. fallow D. stubble
Last Answer : D. stubble
Description : Harrow is a tillage implement that cuts the soil to shallow depth for smoothening and pulverizing the soil as well as to cut weeds and to mix the materials with the soil. a. Primary. c. Tertiary b. Secondary. d. None
Last Answer : Secondary
Description : Objectives of Tillage a. To destroy the prevent weeds. c) both A & B b. To reduce soil and erosion d) increase the output of work per unit time
Last Answer : both A & B
Description : Which of the following is not an advantage of weeds? a. A Controls Soil Erosion b. B Expedites water flow in irrigation canals c. C Maintain Soil Fertility d. D Used as fodder
Last Answer : b. B Expedites water flow in irrigation canals
Description : The condition intensifies the spread of perennial propagules of weeds after being exposed by tillage a). Hot weather b). Rainfall c). High light intensity d). High wind
Last Answer : b). Rainfall
Description : Mould board, disc, Chisel and Sub soil plough are the tillage equipments. b. Secondary c. post d. None of the above
Last Answer : Ans - a. Primary
Description : Conservation tillage tends to encourage
Last Answer : Ans.Higher microbial population
Description : Select the incorrect statement. Harrison and Pelletier argued that managers should learn to avoid ... (a) Treating decisions with uncertain outcomes as though they had predictable results (b) ... and non-routine decisions. (d) Treating ad-hoc decisions as though they were everyday occurrences
Last Answer : (c) Mixing routine and non-routine decisions.