Arun Katyayan Soil Science Part 02 — Agri Master Mind
NPK contain in FYM is
- 0.5:02:0.5
- 0.2:0.5:0.5
- 0.5:0.5:0.5
- None
Solid portion in the sewage called
- Night soil
- Sludge
- Sewage
- None
Sheep and goat are allowed to stay over night in the field and urine and feacal matter is added to soil called
- Sweeping of sheep
- Sheep penning
- Both
- None
Stem nodulation crops
- Sesbania rostrata
- Aeschynomeneafraspera
- Both
- None
Concentrated organic manure
- Bird guano
- Fish guano
- Bird meal
- All of these
Example of amendments
- Urea
- DAP
- Gypsum
- MOP
Complex fertilizer are
- Urea
- MOP
- NPK
- DAP
Filler material to fertilizer processing
- Sand
- Soil
- Coal ash
- All of these
Most hygroscopic fertilizer are
- NH4NO3
- CO(NH2)2
- (NH4)2SO4
- CAN
Acidity equivalent of urea
- 148
- 110
- 84
- 93
Basicity of KNO3
- 29
- 63
- 21
- 26
Sulphur contain in ammonium sulphate
- 10%
- 20 5
- 24 %
- None
Critical limit of biuret is
- <1.5%
- 1.5 %
- <1.5 %
- None
Nitrogen contain in aq ammonia
- 46 %
- 80 %
- 60 %
- N0ne
Citrate soluble phosphatic fertilizer …
- Basic slag
- DAP
- MAP
- TSP
K contain in potassium nitrate
- 48 %
- 60%
- 44 %
- None
Boron contain in borax
- 17.8 %
- 10 .6 %
- 9.6 %
- None
Chelate elements
- EDTA
- DTPA
- CDTA
- All of these
Nitrification inhibitor
- Thiourea
- CDU
- GUS
- IBDU
SRNF are
- UF
- IBDU
- CDU
- All of these
Soil Inoculate bioferlizers
- Rhizobium
- Azotobacter
- Both
- None
Rhizobium spp for groundnut
- R .meliloti
- R .trifoli
- R .japonicum
- R .lupini
Non – legumes symbiotic biofertlizer
- Rhizobium
- Azotobacter
- Frankia
- None
Anabaena azollae is symbiotic with
- BGA
- Frankia
- Rhizobium
- Azolla pinnata
High range of boron contain in soil
- >1 ppm
- >3 ppm
- >0.67 ppm
- None
Organic carbon in Indian soil
- 0.5 %
- 0.6 %
- 0 .8 %
- None
Crop logging concept is given by
- H . L Clement
- Donald
- Jthrotull
- None
Soil fertility is
- Index of available nutrient to plant
- Indicate crop yields
- Analysed in field
- None
Teast is
- Soil high proportion of Mo
- Soil high proportion of B
- Soil with high propration of K
- None
Criteria of essentiality given by
- Arnon 1954
- Arnon and Stout 1936
- Nicholas 1961
- Gris 1844
Chlorin are discovered by
- T .C Broyer
- Maze
- Sachs
- Solm
Avalible form of boron to plant
- B4O7
- BO3
- HBO3
- All of these
Immobile in plant
- Ca and Mg
- Zn
- NPK
- S
Ultra micronutrient are
- Mo
- Co
- Both
- None
Element essential for root growth are
- P
- K
- N
- None
Element regulate osmo-regulation and stomatal movement
- P
- K
- N
- Ca
Constituent of middle lamella are
- Ca
- Mg
- K
- S
Central element of chlorophyll …
- Ca
- S
- K
- Mg
Essential for pollen germination ..
- Fe
- B
- Mn
- Mg
Component of ferredoxin ….
- Fe
- Mn
- Zn
- Cu
Elements Synthesis for IAA ….
- Zn
- Cu
- Mn
- Fe
Components of nitrogenase
- Fe
- Fe + Mo
- Boths
- None
Structure component of vit B12
- Ni
- Cl
- Co
- Na
Essential element forurease activity
- Co
- Ni
- Na
- V
Tip burn , margin scorchring due to
- Mg
- P
- K
- N
Whiptail of cauliflower is due to
- Mo
- Mn
- Mg
- P
Grey speck of oats
- Fe
- S
- Mn
- Cu
White bud of maize
- Zn
- N
- P
- Ca
Toxicity of phosphor cause deficiency of
- N
- Mn
- Fe and Zn
- Ca
Top sickness of tobacco
- B
- Ca
- Zn
- Mn
Saline soil have
- pH <8.5
- ESP,15
- High contain of Mg and Ca
- All of these
Recamination of saline soil is
- Leaching with water
- Ponding of water
- Growing of rice initially
- All of these
Black soil is
- EC <4
- ESP >15 %
- pH>8.5
- All of these
First Stage involve formation of sodic soil
- Salination
- Desalination
- Alkalization
- All of these
Reclamation of sodic soil by application of
- FeS2
- CaSO4.2 H2O
- Both
- None
Saline – Alkali soil is
- EC>4
- ESP >15 %
- Both a and b
- pH < 8 .5
USAR soil highest in
- UP
- Haryana
- Punjab
- Gujarat
High salt tolarant crops
- Rice
- Pulses
- Wheat
- Beans
Very strong acidity pH is
- <4.5
- >4.5
- 4.5
- 5
Acid soil classification criteria are
- PSB
- pH
- Both
- None
Acid soil more dominate in
- Arid region
- Non – humid region
- Humid region
- None
Acid soil formation involve
- Salination
- Alkalization
- Laterization
- Horization
Acids soil dominate in
- West Bengal
- Assam
- Tripura
- All of these
Nutrient available at netural pH
- N , P
- B,Al
- P ,B
- P , K
Acid soil reclamation done through
- Gypsum
- Lime
- FeS2
- All of these