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The latest Messages 190
2021-02-16 15:39:53
#Entomology
Based on the number and location of functional spiracles respiratory
system is classified as follows.
1. Holopneustic:10 pairs, 2 in thorax and 8 in abdomen. e.g.grasshopper.
2. Hemipneustic: Out of 10 pairs, one or two non-functional.
3. Peripneustic: 9 pairs - 1 in thorax 8 in abdomen e.g. Caterpillar.
4. Amphipneustic 2 pairs - One anterior, one posterior, e.g. maggot.
5. Propneustic: 1 pair -anterior pair e.g. Puparium.
6. Metapneustic: 1 pair - posterior pair e.g.Wriggler.
7. Hypopneustic:10 pairs - 7 functional (1 thorax + 6 abdominal), 3 non
functional. e.g. head louse.
8. Apneustic: All spiracles closed, closed tracheal system e.g. naiad of may fly.
8.7K views12:39
2021-02-16 10:45:18
Classification of market on the basis of degree of competition
1. Perfect market: The perfect market is one where there are a large number of buyers and sellers having perfect knowledge of demand, supply and prices.
2. Imperfect market: The market in which the conditions of perfect competition are lacking are characterised as imperfect market. The following situations, each based on the degree of imperfections, may be identified.
a. Monopoly market: Monopoly is a market situation in which there is only one seller of a commodity. When there is only one buyer of a product, the market is termed as a monopsony market.
b. Duopoly market: A duopoly market is one which has only two sellers of a commodity. The market situation in which there are only two buyers of a commodity is known as duopsony market.
c.Oligopoly market: Market in which there are more than two but still a few sellers of a commodity is termed as an oligopoly market.
A market having a few (more than two buyers is known as oligopsony market.
d. Monopolistic competition: When a large number of sellers deal in heterogeneous and differentiated form of a commodity, the situation is called monopolistic competition.
Ex. Choice between various makes of insecticides, fertilizers and equipments.
8.0K views07:45
2021-02-16 05:15:16
Some important deficiency symptoms seen in plants are:-
Stunting :
The growth is retarded. The stem appears condensed and short.
Chlorosis :
It is the loss or non-development
of chlorophyll resulting in the yellowing of leaves
Necrosis :
It is the localized death of tissue
of leaves.
Mottling :
Appearance of green and non- green patches on the leaves.
Abscission :
Premature fall of flowers,
fruits and leaves.
7.9K views02:15
2021-02-15 14:22:01
TYPES OF SPRAYERS:
Based up on the volume of liquid handled, #sprayers may be classified into
➢ High volume sprayer (more than 400 liters /ha)
➢ Low volume sprayer (5 to 400 liters/ hectare)
➢ Ultra-low volume sprayer (ULV) spray (less than 5 liters ha) - One hectare of crop can be treated in around 2.5 hour
9.1K views11:22
2021-02-15 08:17:29
Classification of Plant Diseases: Based on occurrence.
1. Endemic disease:
A disease which regularly occurs in moderate to severe form on a particular area or country classified as endemic to that area.
The word "endemic" means prevalent in, and confined to a particular country, district, or location. E.g. Early blight of potato.
2. Epidemic disease:
A widespread & severe outbreak of a disease but periodically.
It assumes severe form only on occasions.
Examples: Red rot of sugarcane, Late blight of potato, Wheat rusts.
3. Sporadic disease:
Occur at very irregular intervals in time and locations e.g. Green ear disease of bajra
4. Pandemic disease:
Epidemic (widespread & severe outbreak) over a wide geographical area and affecting large proportion of a population.
When a disease prevalent throughout an entire country, continent or the whole world is
known as pandemic disease
9.0K views05:17
2021-02-15 04:00:57
#Fruit_morphology:
1) Simple fruit - Berry: Banana, Papaya, Grape, Sapota, and Avocado
2) Modified berry
i. Balusta : Pomegranate
ii. Amphisarca : Woodapple, Bael
iii. Pepo : Water melon
iv. Pome : Apple, Pear, Laquat
v. Drupe (Stone) : Mango, Pear, Plum
vi. Hesperidium : Citrus
vii. Nut : Cashew, Litchi, Walnut, Rambutan
viii. Capsule : Anola, Carambola
3) Aggregate fruits : Etario of berries –Custard apple, Raspberry
4) Multiple fruit : Syconus- Fig
: Sorosis- Jackfruit, Pineapple, Mulberry
8.9K views01:00
2021-02-14 17:30:06
“#Rashtriya_Kamdhenu_Aayog”
The Government of India has constituted the “Rashtriya Kamdhenu Aayog” to organize animal husbandry on modern and scientific lines and to take steps for preserving and improving breeds, and to stop the slaughter, of cows and calves and other milch and draught cattle.
RKA is trying to its best to implement the vision of 'Atma Nirbhar Bharat'. The Cow-centric economy can also help in achieving this goal by making its own humble contribution. For this purpose, RKA has been consistently endeavouring to increase the use of various cow- panchgavya products to raise the income of farmers, gaupalaks, youth, women, self-help groups and other stakeholders.
Additional Information:
As per 2012 livestock census, India has 300 million bovine population; out of this 191 million are cattle (cows) and 108.7 million buffaloes. The cattle and buffalo genetic resource is constituted by 43 breeds of cattle and 16 breeds of buffaloes. Among the bovine population, 216 million are females and 84 million are males as per livestock census 2012.
India is the global leader in milk production with peak milk production of 176.35 MMT during 2017-18. The cattle population in the country plays crucial role in rural economy in terms of milk production, manure and draft animal power.
9.4K views14:30
2021-02-14 13:25:05
Seed Rate Of Agriculture Crops
Seed Rate- It is the quantity of seed of a crop that is required to sow one hecter land.
Seed Replacement Rate (SSR) or Seed Replacement Ratio- It is a measure of how much of the total cropped area was sown with certified seeds in comparison to farm saved seeds.
◆Rice Transplanting -40kg/ha
◆ Rice Broadcasting -100kg/ha
◆ Rice Drilling - 60kg/ha
◆ Rice Dibbling - 80-90kg/ha
◆ Rice Dapog -1.5-3kg/ha
◆ Rice Hybrid - 12-15kg/ha
◆ Rice SRI - 5-6kg/ha
◆ Wheat- 100 125kg/ha
◆ Wheat Late Sowing-125kg/ha
◆ Wheat Hybrid -60-70kg/ha
◆ Wheat by dibbler-25-30 kg/ha
◆ Barley -100kg/ha
◆ Barley Late Sowing -125kg/ha
◆ Maize Composite-18-20kg/ha
◆ Maize Hybrid - 20-25kg/ha
◆ Maize Fodder - 50kg/ha
◆ Sorghum - 12-15kg/ha
◆ Sorghum Fodder -20-30kg/ha
◆ Pearlmillet - 4-5kg/ha
◆ Pearlmillet Fodder- 20-30kg/ha
◆ Gram - 75-80kg/ha
◆ Pigeonpea - 12-15kg/ha
◆ Moong Kharif -12-15kg/ha
◆ Moong Spring - 20-25kg/ha
◆ Urd Kharif - 12-15kg/ha
◆Urd Spring - 20-25kg/ha
◆ Field pea - 75-80kg/ha
◆ Cowpea - 20-25kg/ha
◆ Sunhemp - 20-25kg/ha
◆ Groundnut Bunch -100-120kg/ha
◆ Groundnut Spreading - 80-100kg/ha
◆ Mustard - 4-6kg/ha
◆ Linseed Small - 15-20kg/ha
◆ Linseed Large -25-30kg/ha
◆ Soybean - 75-80kg/ha
◆ American Cotton -15-20kg/ha
◆ Cotton Desi - 12-15kg/ha
◆ Cotton Hybrid - 2kg/ha
◆ Bt.Cotton - 1.5kg/ha
◆ Sunflower - 6-7kg/ha
◆ Sunflower Hybrids -4-5kg/ha
◆ Rapeseed and Mustard Pure - 4-6kg/ha
◆ Rapseed and Mustard Mixed - 2-3kg/ha
◆ Til - 3-4kg/ha
◆ Jute - 8-10kg/ha
◆ Berseem Diploid -20-25kg/ha
◆ Berseem Tetraploid - 30-35kg/ha
◆ Lucerne - 20-25kg/ha
◆ Lathyrus Pure - 40-50kg/ha
◆ Lathyrus Mixed -8-10kg/ha
◆ Lathyrus Utera -80kg/ha
◆ Oat Small Seeded -80-100kg/ha
◆ Oat Bold Seeded -100-120kg/ha
◆ Tobacco - 2.5-3kg/ha
◆ Potato - 20-25 Qt/ha
◆ Kodo - 6-8kg/ha
◆ Castor - 10kg/ha
◆ Sugarbeet - 8-10kg/ha
◆ Clusterbean/Gaur -30-40kg/ha
◆ Safflower - 15-20kg/ha
https://t.me/agricultureexams2020
8.9K views10:25
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