Environmental Science
72 ENVIRONMENTAL SCIENCE period were conducted on a census-cum sample basis to reduce burden tin collection and processing of pr ...
ENVIRONMENTAL SCIENCE : NATURAL RESOURCES 73 men and women and other categories of rural workers. These programmes also have a d ...
74 ENVIRONMENTAL SCIENCE DHM 105) were released having desirable traits like high productivity and tolerance to various biotic a ...
ENVIRONMENTAL SCIENCE : NATURAL RESOURCES 75 technologies for many natural irritants like Chrysopa and Trichogramma were develop ...
76 ENVIRONMENTAL SCIENCE (4) Seeds India has transformed itself from a subsistence economy and food importing country to one, wh ...
ENVIRONMENTAL SCIENCE : NATURAL RESOURCES 77 The objectives of Maize and Millers Demonstrations in backward and tribal areas is ...
78 ENVIRONMENTAL SCIENCE Soil Tests Soil-testing is an important tool to advise farmers on judicious, balanced and efficient use ...
ENVIRONMENTAL SCIENCE : NATURAL RESOURCES 79 established. The anticipated production from these Centres during 1990-91 is 85 ton ...
80 ENVIRONMENTAL SCIENCE PESTICIDES: ENVIRONMENTAL PROBLEM Use of Pesticides Until 1940’s the following chemicals were used to c ...
ENVIRONMENTAL SCIENCE : NATURAL RESOURCES 81 PROBLEMS CREATED BY THE PESTICIDES APPLICATION Pesticides widely distributed by nat ...
82 ENVIRONMENTAL SCIENCE DEHP Dehp 0.00034 18.32 7.30 36.61 0.044 Phthalic anhydride 0.0036 0.18 5.77 0.113 Phthalic acid 0.0007 ...
ENVIRONMENTAL SCIENCE : NATURAL RESOURCES 83 (8) Damage to Crops (i) Sometimes crops are damaged by pesticide applications, e.g. ...
84 ENVIRONMENTAL SCIENCE (14) Effect on Algae Some of the pesticides inhibit division in aquatic algae. They may decrease their ...
ENVIRONMENTAL SCIENCE : NATURAL RESOURCES 85 (1) Preparation of accurate land use data through remote sensing etc. (2) By a time ...
86 ENVIRONMENTAL SCIENCE of high power transmission lines, Roads and rail tracks. Besides, establishment of cement factories, su ...
ENVIRONMENTAL SCIENCE : NATURAL RESOURCES 87 (3) Forestry project of Chandmura, W.Bengal, insisting upon regeneration of degrade ...
88 ENVIRONMENTAL SCIENCE Unplanned destruction of forests and forest litter has brought about serious changes both in land and ...
ENVIRONMENTAL SCIENCE : NATURAL RESOURCES 89 (1) Recourse to contour and strip farming, (2) A network of forest plantations in c ...
90 ENVIRONMENTAL SCIENCE SOIL EROSION: MEANING, FACTORS The top layer of the soil is the vital component as it includes all the ...
ENVIRONMENTAL SCIENCE : NATURAL RESOURCES 91 crumble under the flow of water. In the eastern hills of Nepal about 38 per cent of ...
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