Agricultural effects

J.G. Penland U.S. Department of Agriculture Effects of dietary Mn and Ca on the human menstrual cycle NS... 

Sapek B (2002) The impact of farmstead operation on ground water quality. In Steenoorden J, Claessen F and Willems J, eds. Agricultural effects on ground and surface waters Research at edge of science and society. lAHS Publication no. 273 125-130. 

Detection and Diagnosis of Crop Diseases. Diagnosis of infectious diseases of crops is one of the near term uses of immunoassays in agriculture ( ). Effective management of plant diseases requires that crop managers have access to timely and accurate information on threats to their crop. Existing plant disease diagnostic procedures require trained personnel, well-equipped laboratories. 

Harwell, M.A. Hutchinson, T.C., 1985 Environmental Consequences of Nuclear War, Volume 11 Ecological and Agricultural Effects, SCOPE 28 (New York Wiley). 

Green fragrances Greenhouse agriculture Greenhouse effect... 

Fertilizer Use. The worldwide use of fertilizers has an important, positive effect on the environment. Conservative estimates (112) iadicate that about 30% of world food production is direcdy attributable to fertilizer use. Without fertilizer, therefore, at least 30% mote virgin land would have to be devoted to agriculture, and 30% more labor and other resources would have to be expended. Even more serious would be the effects of land tillage and cropping without nutrient replenishment. Past experience has shown that, under such a condition, crop yields progressively decrease, the land eventually becomes barren, and forces of wiad and water erosion prevail. 

Flocculants are also used for soHd—Hquid separations in other industries such as the sugar industry (1). Recent experiments have shown flocculants to be effective soil conditioners for agricultural land, which effectively reduce mn-off and erosion (2). However, they have not been used on a large scale for this appHcation. 

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