Description : Medium range weather forecasting is done for
Last Answer : Ans. 3-10 days
Description : The method used to determine available phosphorus from soil is
Last Answer : Ans. Olsen’s method
Description : The C : N ratio of the soil are fairly constant between
Last Answer : Ans. 10 : 1 to 12 : 1
Description : Commercial available medium size machines have a speed range of ______ . (a) 200 to 400 r.p.m. (b) 600 to 1000 r.p.m. (c) 1000 to 1500 r.p.m. (d) 2000 to 2500 r.p.m.
Last Answer : (d) 2000 to 2500 r.p.m.
Description : The suitable medium to establish commonness between sender and receiver of message
Last Answer : Ans. Communication
Description : Transplanting a cell, tissue or organ from one nutrient medium to another.
Last Answer : Ans. Subculture
Description : Young embryo is removed from developing seeds and planted on a suitable nutrient medium in vitro is called as
Last Answer : Ans. Embryo culture
Description : General used nutrient medium in tissue culture
Last Answer : Ans. B-5 medium and MS medium
Description : Soils having 200 kg available K2O/ha will be — fertile soil for K a. High b. Low c. Medium d. None of these
Last Answer : c. Medium
Description : ½ of the interquartile range is
Last Answer : Ans. Quartile deviation
Description : The maximum phosphorus availability in most of the soils is in the pH range
Last Answer : Ans. 6.0 to 6.5
Description : The range of usefulness of tensiometer is between
Last Answer : Ans. 0.0-0.8 bar
Description : The optimum range of available soil moisture for convenient and effective ploughing
Last Answer : Ans.50-75%
Description : Oldest commercially available fertilizer
Last Answer : Ans. SSP (16-18%P2O5 )
Description : Deficiency of N indicated by plant
Last Answer : Ans. Cauliflower
Description : Excess of N, P and K causes deficiency of
Last Answer : Ans. Cu
Description : Deficiency symptoms of N, P, K, Mg and Mo appear in
Last Answer : Ans. Older leaves
Description : Essentiality of N was established by
Last Answer : Ans. De Saussure
Description : N, P and K are
Last Answer : Ans. Primary nutrients
Description : N, P, K, Ca, Mg and S are
Last Answer : Ans. Macro nutrients
Description : The essential element required by the N fixing bacterium Rhizobium
Last Answer : Ans. Mo
Description : Slowly released N fertilizers
Last Answer : Ans. Scoated urea, Neem coated urea, Urea super granule
Description : Amid form of N fertilizer
Last Answer : Ans. Urea
Description : Cheapest N fertilizer, suitable for foliar spray
Last Answer : Ans. Urea (46%N)
Description : Oldest N fertilizer, best for top dressing in rice
Last Answer : Ans. Ammonium sulphate (20.6%N and 24%S)
Description : Fertilizers contain more than 25% of primary nutrients, e.g. Urea (46%), DAP (18% N and 46% P2O5 ).
Last Answer : Ans. High analysis fertilizers
Description : Those fertilizers having all the three major nutrients viz., N, P and K.
Last Answer : Ans. Complete fertilizers
Description : Well decomposed FYM contains N, P and K content
Last Answer : Ans. 0.5:0.2:0.5%
Description : The C/N ratio in the organic matter of furrow slice (upper 15 cm) of arable soils commonly ranges from
Last Answer : Ans. 8:1 to 15:1
Description : Large portions of the earth with similar climate, soil, plant and animal life community is known as
Last Answer : Ans. Biosphere
Description : The soil, air and seed borne disease of wheat
Last Answer : Ans. Kernal bunt (Neovossia indica)
Description : The soil borne disease of rice
Last Answer : Ans. Sheath blight of rice (Rhizoctonia oryzae)
Description : Nutrients absorbed by plants from soil solution are carried upward through the
Last Answer : Ans. Xylem
Description : The cause of most of the gaseous interchange in soil
Last Answer : Ans. Diffusion
Description : Which of the plant species can be suggested on saline soil?
Last Answer : Ans. Haloxylon salicornium (II) Biochemistry
Description : The crops prefer acidic soil
Last Answer : Ans. Rice, tea and potato
Description : Method used for the determination of lime requirement of an acid soil is
Last Answer : Ans. Shoemaker’s method
Description : The saline – alkali soil is also known as
Last Answer : Ans. Usar
Description : Alkaline soil is also called as
Last Answer : Ans. Solanetz and Black alkali
Description : Saline soil is also called as
Last Answer : Ans. Solan chalk and White alkali
Description : The soil, which have 8.5 indicates soil is
Last Answer : Ans. Alkaline
Description : Immobile element in soil is
Last Answer : Ans. Phosphorus
Description : In waterlogged rice field, atmospheric nitrogen can be fixed to the soil by
Last Answer : Ans. BGA
Description : Conversion of soil nitrate into gaseous nitrogen is
Last Answer : Ans. Denitrification
Description : Conversion of NH4 to NO2 in soil is brought out by
Last Answer : Ans. Nitrosomonas
Description : Azatobactor can fixes atmospheric nitrogen/ha to the soil.
Last Answer : Ans. 20-30 kg
Description : Rhizobium fixes atmospheric nitrogen/ha to the soil
Last Answer : Ans. 50-100 kg
Description : The phosphatic fertilizer suitable for acid soil
Last Answer : Ans. Bone meal (23-30%P2O5 )
Description : The fertilizer which destroys soil aggregates
Last Answer : Ans. Sodium nitrate
Description : A practice of turning un-decomposed fresh green plant tissue into the soil to improve fertility status and physical structure of the soil.
Last Answer : Ans. Green Manuring