Cultivation effects

Tiessen, H., and Stewart, J. W. B. (1983). Particle-size fractions and their use in studies of soil organic matter. II. Cultivation effects on organic matter composition in size fractions. 

Schnitzer, M., McArthur, D. F. E., Schulten, FI.-R., Kozak, L. M., and Fluang, P. M. (2005). Long-term cultivation effects on the quantity and quality of organic matter in selected Canadian prairie soils. Geoderma 130,141-156. 

Cultivation effect on the amounts and concentrations of carbon, nitrogen and phosphorus in grassland soils. Agronomy Journal 74, 831-835. 

Management of the operating organization at all levels should encourage and cultivate effective communication. Downward communication should provide assurance that management s direction and expectations are understood upward communication should help encourage the identification of problems directly to... 

Burke IC, Yonker CM, Parton WJ et al (1989) Texture, climate, and cultivation effects on soil organic matter content in U.S. grassland soils. Soil Sci Soc Am J 53 800-805... 

Cultivate an Authoritative Parenting Style for Adults Involved with the Child. An interaction approach consistent with an authoritative style is taught to each significant adult involved with each imhp student. Warmth and emotional closeness are cultivated, effective discipline techniques are taught, and age-appropriate expectations, demands, and challenges are nurtured with families, teachers, and other caregivers. 

It is a general observation that herbicide degradation occurs more readily ia cultivated than fallow sod, suggesting that rhizosphere organisms are effective herbicide degraders. Whether this can be effectively exploited ia a phytoremediatioa strategy remains to be seea. 

Carbon. Most of the Earth s supply of carbon is stored in carbonate rocks in the Hthosphere. Normally the circulation rate for Hthospheric carbon is slow compared with that of carbon between the atmosphere and biosphere. The carbon cycle has received much attention in recent years as a result of research into the possible relation between increased atmospheric carbon dioxide concentration, most of which is produced by combustion of fossil fuel, and the "greenhouse effect," or global warming. Extensive research has been done on the rate at which carbon dioxide might be converted to cellulose and other photosyntheticaHy produced organic compounds by various forms of natural and cultivated plants. Estimates also have been made of the rate at which carbon dioxide is released to soil under optimum conditions by various kinds of plant cover, such as temperature-zone deciduous forests, cultivated farm crops, prairie grassland, and desert vegetation. 

With the increased awareness of environmental and green issues there has been an increased interest in natural dyes accompanied by a lobby for natural fibers in favor of synthetic fibers. However, studies have shown (3) that if 1990 s volume of cotton were colored with natural dyes, at least 31% of the available world s agricultural land would be needed to cultivate the requisite plants. The estimate is based on it taking, on average, 440 g of fresh dye plant to achieve the same tinctorial effect as 1 g of synthetic dye. 

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