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At a minimum , sustainable development must not endanger the natural systems that support life on Earth : the atmosphere , the waters , the soils , and the living beings ... During the past three years of low feed grain prices and drought stress , the importance of conserving soil moisture and reducing fuel and labor cost has been a key to economic survival for Texas farmers , he said . More specifically , more information is needed relative to : in the geosphere , the roles of the soil column , soil microbes and terrestrial plant species in metal movement , cycling and transformation are not well known . In addition , information on soil management , testing and fertility has been expanded . Soiled diapers should be autoclaved because they can be expected to contain botulinum neurotoxin as well as viable spores and vegetative cells of C. botulinum . It is most severe in soils with a pH greater than 5.2 or during drought . " Similarly , applying soiled heel protectors directly on to Resident # 93 's open sores does not establish that the facility took " all necessary precautions " to prevent infection . Other potential benefits of filtration include reducing unsightly soiling of indoor surfaces and reducing the deposition and accumulation of organic matter on surfaces such as HVAC ducts where it can become odorous or provide a substrate for microbiological colonization . Most babies whose mothers have too much milk gain weight much faster than normal and have many more wet and soiled diapers than normal each day . " says the simple , diminutive man in a tattered and soiled dhoti-kurta . For example , a theme called " Effects of Water on Soils " can have modules that provide a series of learning experiences in topics on the effects of water on soils for a variety of users , such as K-12 [ 7 ] and undergraduates [ 8 ] . In the wild Kaffir lily is found in wet areas and beside streams , thus it will tolerate poorly drained soils . " Although I do not doubt that , after dressing the pressure sores , the nurse reapplied the soiled heel protectors , I make no finding regarding the appropriateness of the application of the soiled heel protectors to the bandaged sores . Grubs can be especially plentiful in undisturbed pasture or turf soils . However , I think some of the crew feels I used the soil sample box instead . What must we think but that all this shame is something that has gathered about the Soul , some foreign bane outraging it , soiling it , so that , encumbered with all manner of turpitude , it has no longer a clean activity or a clean sensation , but commands only a life smouldering dully under the crust of evil ; that , sunk in manifold death , it no longer sees what a Soul should see , may no longer rest in its own being , dragged ever as it is towards the outer , the lower , the dark ? Different crops require different soil pH levels for optimum performance ; when pH falls below these levels , performance may suffer ( Table 1 ) .