Agriculture Exams Library

2021-02-12 13:17:39 Open / Comment

2021-02-11 17:04:08 IBPS SO Interview Call letter is out

https://ibpsonline.ibps.in/crpsplxoct20/clinta_feb21/login.php?appid=00dc796cb29512a1043e8c7042641632 Open / Comment

2021-02-11 16:54:43 Causes of colour/bitterness in fruits/vegetables

Yellow colour in papaya due to : Caricaxanthin.

Redness of apple is due to : Anthocyanin.

Red colour in tomato is due to: Lycopine.

Red colour in chilli is due to: Capcyanthin.

Pungency in chilli is due to: Capsaicin.

Orange colour in carrot is due to: Carotene.

Red colour in carrot is due to: Anthocyanin

Yellow colour in turmeric is due to: Curcumin

Bitterness in bitter gourd is due to: Memordicocite.

Bitterness in cucumber is due to: Cucurbitacin.

Yellow colour of onion is due to : Quercetin

Red colour in onion is due to:
Anthocyanin.

Pungency in onion is due to:
Allyl propyl di-sulphide.

Pungency in raphanus is due to : Isocyanate.

Pungency in mustard is due to : Glucosilates.

Pungency in garlic is due to:
Di allyl di sulphide.

Green colour in potato tuber due to: Solanin.

Sour taste of gram leaves is due to: Malic/oxalic acid.

Pungency in pepper is due to
Oleoresin

Pungency in cabbage leaves due to: Sinigrin.

https://t.me/agricultureexams2020 Open / Comment

2021-02-11 10:59:47 a) Insecticides : Chemicals used to kill or control insects (eg.) endosulfan, malathion

b) Rodenticides : Chemicals exclusively used to control rats (eg.) Zinc phosphide.

c) Acaricides : Chemicals used to control mites on crops / animals (eg.) Dicofol

d) Avicides : Chemicals used to repel the birds (eg.) Anthraquionone

e) Molluscicides : Chemicals used to kill the snails and slugs (eg.) Metaldehyde

f) Nematicides : Chemicals used to control nematodes (eg.) Ethylene dibromide

g) Fungicides : Chemicals used to control plant diseases caused by fungi (eg.) Copper oxy cholirde

h) Bactericide : Chemicals used to control the plant diseases caused by bacteria (eg.) Streptomycin sulphate

i) Herbicide : Chemicals used to control weeds (eg.) 2,4, - D Open / Comment

2021-02-11 08:22:57 https://www.agricultureexamslibrary.in/learn/IBPS-AFO-INTERVIEW-GUIDANCE

INTERVIEW LECTURE PART-2 ADDED

GIVE US YOUR FEED BACK AFTER STUDYING SO WE CAN IMPROVE FURTHER Open / Comment

2021-02-11 08:22:57 https://www.agricultureexamslibrary.in/learn/LAST-MINUTE-COURSE-FOR-ALL-AGRICULTURE-EXAMS

For cotton coporation of india exam Open / Comment

2021-02-11 08:17:16 #Pathology #diseases #imp

Bacteria leaf blight of rice caused by ? - Xanthomonas oryzae

The disease caused by Leptosphaeria sacchari in sugarcane is ? - Ring spot

Loose smut of wheat is ?
- Internally seed borne

The Karnal bunt of wheat is caused by ? - Neovossia indica

Sugarcane rust is caused by ?
- Puccinia eriathi

Leaf blight of wheat is caused by ? - Alternaria trictinia

Stem rot of rice is caused by ?
- Sclerotium oryzae

Tungro disease of rice is spread by ? - Nephotettix virescens

Ufra disease of rice is caused by ?
- Ditylenchus

Whip smut of sugarcane is caused by ? - Ustilago sciteminae

Red rot of sugarcane is caused by ? - Collectorichum falcatum

Sugarcane mosaic disease is transmitted by ? - Rhopalosiphum maidis

Disease also known as “Killer Disease of Wheat” is ? - Black/ Stem rust

Akiochi disease is due to ?
-Hydrogen Sulphate toxicity

White rust of crucifers is caused by ? - Albugo candida

Crop showing maximum resistance to nematode is ?
- Marigold

Iris famine in 1845 ,was caused due to ? - Phytophothora infestance

Father of Indian Pathology is ?
- E.J.Butler

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2021-02-10 17:47:25 Classification Of Soils

Soils can be grouped into categories based on their present properties. The most general soil category is called order.
All world soils are place into 12 orders.

1. Entisols: Those soils that have natal, if any, profile development are known as entisols. Soils in desert belong to this classification. The productivity of these soils varies with their location and properties. With controlled water supply and proper fertilization, these soils have good productivity and good for vegetables, groundnut, citrus, wheat, paddy, etc.

2. Inceptisols: These soils have better profile development than entisols but are less developed. The horizons are formed mostly from alteration of the parent materials with accumulation of clay. The productivity is limited due to poor drainage. Found in humid regions.

3. Histosols: These are organic soils (pleats and mucks) consisting of variable depths of accumulated plant remains in bogs, marshes and swamps that have developed under water saturated environment. Highly rich in organic matter i.e. Org. Carbon ranges from 12 to 18% in soils with low to more than 50% clay content.

4. Aridisols: Soils found in arid or dry areas with light in colour, poor inorganic matter and are not subjected to leaching, used for cultivation with irrigation.
Process a horizon of CaCO3 (lime), Calcium sulphate (Gypsum) or more soluble salts. These are desert soils.

5. Mellisols: Mostly these are grasslands having thick surface horizon of dark colour, dominated by divalent cations. Process normal granular or crub structure, do not harden on drying and with moderate to have fertilization soil are productive.

6. Vertisols: These have a high content of clays that swell when wetted (more than 30%). During the dry season, these soils on tract and give rise to deep cracks which disappear in the wet season or after irrigation. Found in sub humid or semi arid (Temperate to tropical) climates where temp. are moderate to high. Good for crop production with fine texture which are plastic and sticky when wet and hard when dry. Difficult to manage due to very little time for their proper preparation by tilling good for the production of cotton, millet, sorghum, wheat, paddy, etc.

7. Alfisols: Develop in humid and sub humid climates (500 mm to 1300 mm rainfall) with gray to brown surface horizons. Soils are slightly too moderately acid and quite productive with good texture. Soils are frequently under forest vegetation.

8. Spodosols: Soils belong to forests with low content of bases, having coarse texture (sandy). Found in humid climates where temperatures are low. The subsurface horizons have accumulation of org. matter and sesquioxide.

9. Ultisols: These are strongly acid, normally forest soils with low content of bases extensively weathered soils of tropical and subtropical climates, respond to good mgt. practices, have clay of 1:1 type and give good crop production with adequate fertilization.

10. Oxisols: These are most developing in tropical and subtropical climates. The subsurface horizons are high in clay and acid. The soils are productive with supplements of ‘P’ micro-nutrients.

11)Endisols

12) Gelisols Open / Comment