agri Flashcards
what is indias share in global millet prod
s. It is the world’s leading producer of millets, producing around 41% of total
production in 2020
Education including agricultural education and research has been included in the Concurrent List in the
Seventh Schedule of the Constitution of India.
Agriculture was included in the List II (State List) in the Seventh Schedule of the Constitution. More
importantly, agricultural education was detached from the other streams of higher education and attached to
the occupied field of agriculture in List II. Thus, Entry 14 in List II reads: “Agriculture, including agricultural
education and research…”; Entry 15 reads: “…veterinary training and practice”; and Entry 21 reads: “Fisheries”.
Indeed, education was included in List III (Concurrent List
Consider the following statements regarding System of Rice Intensification (SRI) method of sowing paddy.
1. System of Rice Intensification (SRI) was first developed in India and since then several countries in the
world have been practising it.
2. It gives equal or more produce than the conventional rice cultivation, with less water, less seed and less
chemicals.
3. SRI is not suitable in all types of soil like less fertile soil.
4. SRI method permits greater weed growth in comparison to Direct Seeding of Rice (DSR) technique.
Which of the above statements is/are correct?
a) 1, 2
b) 2, 4
c) 2, 3, 4
d) 1, 3
Solution: b)
System of Rice Intensification (SRI) was first developed in Madagascar in the 1980s and since then several
countries in the world have been practising it, including India. It promises to save 15 to 20% ground water,
improves rice productivity, which is almost at a stagnant point now. Experts said that it gives equal or more
produce than the conventional rice cultivation, with less water, less seed and less chemicals.
Experts said that unlike Direct Seeding of Rice (DSR) technique, which is suitable only for mid to heavy textured
soils, SRI is suitable in all types of soil including less fertile soil as in such soil the number of seedlings can be
increased to double.
SRI doesn’t require continuous flooding, it needs intermittent irrigation. Indeed the plants’ roots should not be
starved for oxygen through flooding. Irrigation is given to maintain soil moisture near saturation initially, and
water is added to the field when the surface soil develops hairline cracks. Irrigation intervals will vary according to
field conditions.
Unlike DSR when weeds are major problem and weedicides are sprayed simultaneously at the time of sowing, in
SRI, which permits greater weed growth because of alternate wetting and drying of fields, the weeds are
incorporated into the soil by operating a cono-weeder between rows, which are made at the time of sowing,
which adds nutrients to the crop like green manures. First weeding is to be done 10-12 days after planting.
Further weedings may be undertaken, depending on the necessity, at 10-15 days intervals, until the crop reaches
panicle stage. Each weeding enhances yield through a process of soil aeration.
direct seeding of rice vs SRI
Experts said that unlike DSR, which is suitable only for mid to heavy textured soils, SRI is suitable in all types of soil including less fertile soil as in such soil the number of seedlings can be increased to double.
WHAT is System of Rice Intensification actually
The System of Rice Intensification involves cultivating rice with as much organic manure as possible, starting with young seedlings planted singly at wider spacing in a square pattern; and with intermittent irrigation that keeps the soil moist but not inundated, and frequent inter cultivation with weeder that actively aerates the soil.
SRI is not a standardised, fixed technological method. It is rather a set of ideas, a methodology for comprehensively managing and conserving resources by changing the way that land, seeds, water, nutrients, and human labour are used to increase productivity from a small but well-tended number of seeds. As Father de Laulanié observed, SRI is an amalgamation of multiple beneficial practices.
All pulses help in restoring fertility of soil
All except arhar
With reference to zero-budget natural farming, consider the following statements
1. This farming practice uses 50 percent less water and electricity than conventional farming.
2. It is the method of growing crops in tune with nature.
3. The usage of herbicides and biostimulants is prohibited.
4. Though it has the potential to avoid residue burning, it cannot reduce methane emissions, similar
to traditional farming.
Which of the statements given above is/are correct?
1,2 correct
Biostimulants as necessary catalysts
Pest management through botanical extracts
No synthetic fertilizers, pesticides, herbicides
ZBNF reduces methane emissions significantly through multiple aerations. It also has the potential to
avoid residue burning by practicing mulching – a process of covering the soil and make more favourable
conditions for plant growth and development
Advanced Dvorak Technique, which was in the news recently, is related to
The Dvorak technique was a cloud pattern recognition technique based on a conceptual model of the
development and decay of the tropical cyclone.
In which of the following places do cyclones usually not originate?
1. Equator
2. Tropical latitudes of South-eastern Pacific regions
3. Tropical latitudes of the South Atlantic
all 3
Cyclones do not originate in Tropical latitudes of South-eastern Pacific regions and Tropical latitudes of
the South Atlantic because the inter-tropical convergence zone stays at or near the equator and does not
shift southward over the south Atlantic or south pacific region. which is a major cause of the lack of
cyclones and lower sea temperatures are also a reason
The South Atlantic Ocean is dominated by the South Atlantic Gyre, a large ocean current
system that flows clockwise and tends to suppress the formation of storms. A
High nitrogen fertilizer usage in agriculture leads to high consumption of nitrate in our diets. What
could be the impact of such high nitrate content in food?
1. Diabetes
2. Neural tube effect during foetus development
3. Thyroid effects
4. Cancer
all
Nitrate in community water supplies and risk of childhood type 1 diabetes
