The most appropriate to jhumming Land is fixed but crop is rotated Cause soil erosion Practised in NER in india
Subsistence agriculture is
Pillars of modern cropping system are
Yearly sequence and spatial arrangement of crops and fallow in a given area is called
Major cropping system in India is
The plan according to which crop are raised on individual plot of a farm with an objet of getting the maximum returns from each plot without impariring ferlility of the soil is
The number of crops grown per annum on a given area of land times 100 is called
Any subsidiary crop grown in association with a main crop is
Intercopping is the intensification of crops in
Growing two or more crop simultaneously during part of life cycle of each is
Repetitive growing of same sole crop in the same land is
Match of the following A with B Innovators a. 13.5 % Early Adoptors b. 34 % Early majority c .34 % Late majority d.2.5 % Leggards e 16 %
Complementary interaction between intercrops in space and time dimension is
Cultivation of crops which have different natural habit and zero competition is
Intercropping is said to be beneficial when LER is
Climate produced by land sea breeze or mountain valley breeze is example of
Ideal dimension for agrometerological observatory is
Agro metrological observatories are maintained for
Solar constant value is ….
Total number of agro- ecological sub – region (AESRs)in India is
The largest agro – climate zone in the country is
A drought that occurs due to an imbalance between soil moisture and evapotranspiration of a crops is …
A drought that occurs due to lack of moisture conservation practices is …
The zone delineated by thornthwaite moisture moisture indices form more than 100 is …
A dry soil layer at the surface may be create in - situ by loosening surface soil and hastening the drying of upper soil is knows as ………
The CRIDA was established in the year
Leaf and canopy temperature can be measured by
The fraction of total precipitation which forms a part of crop consumptive use is knows as …
The amount of water needed to return the soil moisture status to the field capacity is knows as ….
Rainfed farming areas are characterized by a growing season of
In India dryland constitutes …… % of the cultivated area .
Higher yield of rice could be ensured by adequate suppy of ….. fertilizer at the tillering stage
Abnormally rapid erosion in an environment disturbed by animals life , chiefly man is called
Humid and sub – humid part og northeastern states comes under
Which of the following is / are water – absorbing chemicals ?
Incorporation of vegetative mulch in a band in the for the purpose of harvesting rain water and conversing soil and water is know as ..
Which is the stomatal closure type anti – transpirant ?
The meterological drought occurs when the rainfall deficiency is more than ….. % of long term average .
Which of the following is drought – resistant crop ?
Physiological drought is mainly caused by …
Maximum wind erosion occurs in
Dryland contributes …% of the total food production in India
ICARDA was established in the year …
Dryland farming areas are characterized by a growing season of
Leaf rolling reduces up to ….. % transpiration in rice
Graded bunding is suitable when rainfall is
As per thronth wait classification , semi- arid climate has a moisture index of
Areas receiving averages annual rainfall >1150 mm are categorized as …..
AICRPDA classified the climate based on
ICRISAT uses the climate classification given by
Agronomic measure to control soil erosion is mainly adopted for slope …
Contour bunding is mainly practiced in areas with slope ….%
The most suitable plant as vegetative barrier is ..
First stage of water erosion
Which mode of transportation has more contribution toward wind erosion ?
The nutrient loss due to soil erosion is to the extent of ….. Mt
The most common form of erosion by water is
Which form of erosion is the main cause of crust formation ?
The universal soil loss equation consider the soil loss due to which erosion ?
The study of behaviour of soil water system in moist to semi – fluid state is ..
Plate like soil structure is found in …
The first objective of watershed management is …
Regur formation is dominate in
Erosivity index was developed by
In the universal soil loss equation , factor that are amenable to manipulation are ..
Central soil and water conversation research and training institute is located at ..
Which of the following institute is concentrating on wind erosion problems in India ?
In the soil loss by wind equation , K is
Which land capability classes (LCC) are suitable for regular cultivation ?
The broad bed and furrow (BFF) method was developed was developed by
When top soils have less resistance to erosion than subsoil , shape of gully is
Gully having a depth of 6 m is classified as
Map colour for LCC V class
Slope for class III LCC is
The size of micro watershed is
….. soil is self mulching
Vertical mulching is mostly done in …..
The direct or indirect harmful effect on the other crops through the release of toxic substance as such from thr plant …..
The toxin may inhibit more strongly plants of the producer species itself …
Which plant leaves exudate allelochemical reduce germination of mustard seeds ?