Agriculture Study Materials Point
Agriculture Study Materials Point
Subject:- General Agriculture
Trap crop:- Grow trap crops around the main crop to attract the pest of main crop and then easily destroyed through spraying any effective pesticides.
1.Use of trap crop AgriExam.Com
| Trap crop | Used in crop | Pest control |
| Okra | Cotton | Red cotton bug, Boll worms |
| Marigold | Cotton and Tomato | Helicoverpa armigera |
| Castor | Soybean | Spodoptera litura |
| Tomato | Citrus | Fruit borer |
| Mustard | Cabbage | Diamond back moth |
| Chilli | Onion | Thrips |
Watershed:- Watershed can be defined as a unit of area covers all the land which contributes runoff to a common point or outlet surrounded by a ridge line.
2.Classification of watershed AgriExam.Com
| Type of watershed | Area covered |
| Mini watershed | 10-100 ha |
| Micro watershed | 100-1000 ha |
| Milli watershed | 1000-10,000 ha |
| Sub-macro watershed | 10,000-50,000 ha |
| Macro watershed | >50,000 |
3.Type of Inflorescence In Vegetable Crops AgriExam.Com
| Type of inflorescence | CROPS |
| Raceme | Cucurbits, radish |
| Cyme | Tomato, brinjal, chilli, potato, spinach, sweet potato, broccoli, cauliflower |
| Cat ken | cabbage |
| Panicle | Moringa, palak |
| Spike | Beet root |
| Compound Umbel | Carrot, Coriander |
| Capitulum | Lettuce |
4.Classification of Spray Volumes AgriExam.Com
| Sprayer | Quantity |
| High Volume Spray | > 400 lit/ha of spray liquid (AFO 2018) |
| Low volume Spray | 5-400 lit/ha |
| Normal aerial dose | 15-75 lit/ha, |
| Normal ground dose | 100-200 lit/ha |
| Ultra-low volume or Low Volume concentration Spray | <5 lit/ha. |
5.Methods of raising AgriExam.Com
| Methods of raising | Vegetable Crops |
| Direct sown crops | Okra, Carrot, Radish, Beans, Peas, Garlic. |
| Transplanted crops | Tomato, Brinjal, Chillies, Cabbage, Cauliflower. |
| Vines and cuttings | Sweet potato, Cassava, Pointed gourd. |
| Bits of tubers and corms | Potato, Yams. |
6.Deficiency, their effects and major source of vitamins
| Effect/deficiency | Rich Source AgriExam.Com |
| Vitamin A (Retinol) | |
| Night blindness, growth failure , Xerophthalmia | Milk, carrot, papaya, mango. |
| Vitamin B1, (Thiamine) | |
| Beri-beri (disturbance in digestive system), muscular weakness, neuritis | Cashew nut, almond, walnut, Rice polishing, leafy Veg. |
| Vitamin B2, (Riboflavin) AgriExam.Com | |
| Photophobia, inflamed lips, cracks on skin ariboflavinosis | Bael, papaya, pulses |
| Vitamin B5 (Niacin or Nicotinamide /Pantothenic acid ) | |
| Pellagral, black tongue | Mushrooms, avocados, sunflower seeds, sweet potatoes, and lentils |
| Vitamin B6 (Pyridoxine) | |
| Degeneration of nerves, depression, lack of energy | Soybeans, Yeast, wheat germ, legumes |
| Vitamin B12 (Cobalomine) | |
| Pernicious anemia | fish, meat, poultry, eggs, milk, and milk products. Vitamin B12 is generally not present in plant foods |
| Vitamin C (Ascorbic acid) | |
| Scurvy (soft tissues around the Joints become swollen and painful) | Aonla, guava, citrus, barbedos cherry |
| Vitamin D (Calciferol) AgriExam.Com | |
| Rickets (bone deformation), Pigeon chest in children & Osteomalacia in adult | Sun light, fish & liver oil |
| Vitamin E (Tocopherol) | |
| Sterility (reproductive failure) | Outer layer of grains, nut |
| Vitamin H (Biotin) | |
| Dermatitis, hair loss | Egg yolk, Sweet potato, avocado |
| Vitamin K (Phylloquinone) | |
| Delayed clotting | Cauliflower, liver, soybean |
| Vitamin Folic acid | |
| Anaemia | Palak, karonda, green leafy veg. |
Vitamin term is coined by “Casimir Funk in 1912”
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