The increasing population is constantly requiring increased food production. The various ways being incorporated are at the expense of environmental safety. The government needs revenue from the sale of fertilizers but nevertheless, measures need to be taken that ensures greater harmonization between agricultural productivity and environmental protection. One of the sustainable agricultural practices that could be employed would be to encourage farmers to use lesser pesticides and chemical fertilizers because, when these are used in excess quantities, they pollute the environment and causes health hazards since these pollutants may be reaching the food (Malik and Elisabeth 3). At the same time, it would be appropriate to increase the agricultural productivity through microorganism manipulations that benefits both the soil and the plants. Bacteria help facilitate nutrients uptake while at the same time fixing atmospheric oxygen and other soluble mineral synthesis. Lesser of a fertilizer should be applied closer to the roots. At the same time, organic fertilizers should be every government’s concern in creating sustainable agriculture.
What impacts do dams have on the biosphere, and under what circumstances do you think we should not allow dams to be built?
Dams have been encouraged in many instances as the provision of electricity need arises, thereby decreasing pollution attributed by coal plants and other fossil fuels in energy production. Dams are also credited with the role of controlling flooding, enabling irrigation among others uses. Dams also act as water reservoirs and provide development portions previously occupied by floodplains. Nevertheless, dams block fish migrations which affects their rearing habitats. At the same time, they trap sediments which are necessary for maintaining physical processes and habitations downstream. The dam may not be a suitable habitat for fish since there could be the invasion of nonnative species. There could also be the spread of diseases due to water stagnation. Mosquitoes, snails and other insects may lead to diseases around the dams. Species may become extinct downstream as a result and soil erosion would occur as they rivertry’s to make up for the holdback sediments through channel and banks erosion. Lowering of riverbeds also causes harm and threat to downstream vegetation and river wild animals.
Malik, Abdul, and Elisabeth Grohmann. Environmental Protection Strategies for Sustainable Development. Dordrecht: Springer, 2011. Print.