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Science food resources


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A very beautiful presentation on Improvement In Food Resources.
Dedicated to Class IX NCERT Science Textbook Chapter No. 15 Please subscribe:- ""
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Science food resources

  1. 1. Small farm • Less land • Less money • No/less access to information and technologies • Less inputs • Less yield Large farm • More land • More money • Access to information and technologies • More inputs • More yield
  2. 2. Manure Fertilizer A manure is a natural substance. It is obtained by the decomposition of animal wastes such as dung of cattle & plant residues. A fertilizer is a human-made substance. It is an inorganic salt or an inorganic compound. A manure contains small amounts of essential plant nutrients such as nitrogen, phosphorus, potassium. Fertilizers are very rich in plant nutrients such as nitrogen, phosphorus, potassium. A manure adds a great amount of organic matter in the form of humus in the soil. A fertilizer does not add any humus to the soil. Nutrients present in the manure are absorbed slowly by the crop plants since manure is not soluble in water. Nutrients exist locked inside the organic compounds of humus. Being soluble in water, a fertilizer is readily absorbed by the crop plants. A manure is not nutrient specific and it tends to remove the general deficiency of the soil. A fertilizer is nutrient specific. It can provide specifically nitrogen, phosphorus and potassium to the soil according to the need. A manure is voluminous and bulky so it is inconvenient to store, transport, handle and apply to the crop. A fertilizer is compact and concentrated so it is easy to store, transport, handle and apply to the crop. A manure is cheap and is prepared in rural homes or fields. A fertilizer is costly and is prepared in factories.
  3. 3. Intercropping of Maize & Flax Intercropping of Finger Millet & Sugar Cane
  4. 4. Commodities Crops Varieties Cereals Rice Wheat Maize IR 8, Jaya, Heera,VL Dhan 221, C ST 7-1, Jawahar, TRC – C 10, IR 36, Pusa Basmati 1, Kasturi, Vikas, PNR -591 – 18 MIKS 11 KML 7406, HUW 318, MACS 2496, HD 2687, HD 2285, C 306, PBW 154, HW 157 Ganga 5, HIM128, Shakti, Navjot,Vikram Pulses Chicken pea (gram) Pigeon pea Urad bean Moong bean BE 244, ICC 34, K 850, H 208, Pusa 240, Pant 114 ICPH 8, Pusa Ageti, UPAS 120, Pusa 84, Manak, T21 LB G 17, ADT 3,T9, Pant 430, PS 1, CO5 MLZ 67, CO4, PS 16, S8, T 44, K851, Aasha Oil seeds Groundnut Mustard Soyabean Sunflower MH 2, ICGS 1, M 37, GG 11,TMV 12, Kaushal, ICGS 11, ICGS 44 Pusa, Bold, Kranti, Pusa Agarni, RML 514, RH 30 PK 262, PK 327, Pusa 24, Durga, Gauav BSH 1, MSF H 8, Modern, Arun, Paras
  5. 5. Animal Products Per cent (%) Nutrients Fat Protein Sugar Minerals Water Vitamins Milk (Cow) 3.60 4.00 4.50 0.70 87.20 B1, B2, B12, D, E Egg 12.0 0 13.00 * 1.00 74.00 B2, D Meat 3.60 21.10 * 1.10 74.20 B2, B12 Fish 2.50 19.00 * 1.30 77.02 Niacin, D, A