Any given volume, V of soil (Fig. 3.1) consists of: (i) Volume of solids Vs (ii) Volume of liquid (water) Vw, and (iii) Volume of gas (air) Va The porosity n, the volumetric moisture content w and the saturation s are defined as N = Vv/V Obviously, w = s.n. Further, if the weight of […]
Root Zone Soil Water Relationships | Irrigation
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How to Protect Crops? | Microbiology
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In this article we will discuss about the protection of crops by the use of bio-pesticides. 1. Microbial Herbicides: The use of endemic or exotic plant pathogens to kill weeds is the efforts of phytopathologists. The microbial origin of herbicides is definitely a major contribution and an alternative to chemical weedicides. Some of the successes […]
Cultivation and Improvement of Tea | Plants
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In this article we will discuss about the cultivation and improvement of tea. Tea: Tea, Camellia sinensis, is one of the most popular caffeine containing beverage, obtained from tender leaves of the tea plants after processing. Tea contains 13-18% tannin, 2-5% theine and a volatile oil. There are two main varieties, e.g., bohea (Chinese tea) […]
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