3.8.1.2 Leaf area and leaf area index (LAI) Leaf area of five randomly selected plants‚ was measured with the help of leaf area meter (Model LI-3100‚ USA) at 20‚ 40 and 60 DAS by destructive sampling from all leaves of the five sample plants (Sticker et al.‚ 1961). Plants were cut at the soil surface‚ leaves were separated from the plants‚ covered with blotting paper to keep the leaf intact and retain its original shape and were brought to the laboratory. Leaf area was measured immediately after
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Microbial analysis of soil‚ of top layer from selected sites of Area near Dahisar River Saika N. Esani University of Mumbai (Email – saikae@ymail.com) Abstract: soil samples were collected fortnightly from area near Dahisar River‚ A river in suburb of Mumbai. laboratory analysis started from July 2010 to September 2010. Total bacterial and fungal count were estimated by standard spread plate isolation. Isolated bacteria were subject to colony characterization and were estimated by their
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The effect of salt concentration on grass growth Abstract Our aim was to test the effect of different salinities on the growth of plants which what we did was measured different amounts of salt dissolved into 2 litres of water‚ watered the plant once with the salt water then for 9 days with pure ware. I found with my investigation that the less the salt‚ the more the growth of the plant. My aim was achieved by measuring the 5 fastest geminating (out of 20) and to measure the differences in growth
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Effects of moisture content and fertilizers on the body mass of earthworms‚ Pheretima sp. under laboratory conditions Suraya Yaacob‚ Fatin Habsah Abd. Hamid and Muhammad Farouk Roslan Introduction Earthworms play an important role in the turnover of organic matter in soil and maintaining a good soil structure (Lavelle‚ 1988). Physical properties in soils improved by earthworms include improved aggregation‚ stability‚ and porosity. The soil biological and chemical properties of soils that may be
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Article Summary Effects of earthworms on soil Earthworm is the common name for the largest members of Oligochaeta in the phylum Annelida. They combine bilateral symmetry and corresponding external and internal segmentation. This phylum consists of more than 17‚000 modern species of worms including earthworms‚ ragworms‚ and leeches. They are found in marine environments from tidal zones to hydrothermal vents‚ in fresh water‚ and in most terrestrial environments. They generally do not occur
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Composting – A more sustainable way to help you grow your own If you have all ready made the decision to grow your own fruit and vegetables you are one step closer to living more sustainably. So‚ what better way to aid this than create your own compost pile. You can make it as simple or complex as you please – all you really need is to combine the right materials and let nature do the rest. However there are a few different ways to make your compost more nutrient rich and more efficient.
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FACTORS AFFECTING SULFUR MINERALIZATION Sulfur content of organic matter Mineralization of sulfur depends on the sulfur content of the decomposing material in much the same way that nitrogen mineralization depends on the nitrogen content. Smaller amounts of S042- are liberated from low sulfur containing residue‚ which is similar to nitrogen mineralization. At or below a C/S ratio of approximately 200/1 only mineralization of sulfur occurs. Source of mineralizable sulfur Because of the contribution
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Earthworms are an organism which has been able to survive for millions of years due to the fact that they have been able to adapt to their surroundings in order to survive. Adaptation is an alternation or adjustment by which a species or individual improves its condition in relationship to its environment. Earthworms have adapted in many ways over the pass generations in order to improve reproduction‚ to get food and to improve their defenses. Earthworms live in moist soil which contains organic
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This study was to evaluate the effects of the variation in concentrations of urea used in retting on the properties of kenaf fibres. The experiment was conducted with four varieties of Kenaf plant namely: Cuba-108‚ Tianung-2‚ Ifeken-Di-400 and Ifeken 400. Two kenaf stems of each of the four varieties were tied (bundled) together and soaked in an improvised retting tank containing urea solutions at 1 and 2% concentrations and control (without urea). The properties of retting liquor were assessed
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Crocodile bird No.2 carefully spreads its eight paws‚ firmly adhering to the smooth walls of large machines. The extraordinary large machine stretches beneath it and over it. The entire large machine is housed in a giant cave‚ turning a bend in the distance from the sky‚ the cliff-like white walls encircling a magnificent Arc theater. The caves are surrounded by thick moist red clay. Shaoguo No.2 was strictly ordered not to go to those lands‚ to it‚ it is the place where the block died. There are
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