Some of these food crops are sold in the markets or consumed in the home. There is increased awareness that heavy metals present in soil and food may have negative implications on human health and on the environment (Abraham, 2002; Selinus et al., 2005). From the environmental point of view, all heavy metals are largely immobile in the soil system, so they tend to accumulate and persist in agricultural soils for a long time. The most frequently reported heavy metals with potential hazards in soils are Copper, Cadmium, Chromium, Lead and zinc (Alloway, 1995). The concentration of these toxic elements in soils may increase from various sources
Another study showed that the technology of GMOs didn’t help in the reduction of the amount of pesticides used. As stated by Ho and Sirinathsinghji, “USDA data showed that GM crops increase pesticide use by 50 million pounds from 1996 to 2003 in the United States” (2008, p.4). Another negative effect of GMOs on our environment is that it makes sever damage to the wild life. As mentioned by Ando and
Salinity is one of the most important factors that influence greatly plant growth and productivity in arid and semi arid regions (Jamil et al. 2005). Salinity stress caused losing yield in common beans (Läuchli, 1984). The results of Talaat (2015) showed that common beans plants were grown in saline conditions showed a decline in productivity, membrane stability index. Salt stress in common beans caused a several growth limitation so that bean can tolerate below 50 Mm NaCl but higher concentrations caused dramatic reduction in growth and yield (Gama et al., 2007).
Rice is an important crop throughout the world, being main food of over half of the world population (Park et al., 2014). In Iran, it is the second most important strategic crop after wheat, with a special role in people’s food regime. However, continuous rice planting in the area without care for sound use of resources has adversely affected the environment in the recent years. High fertilization rates, particularly nitrogen, and the icreased possiblity of pollution of waters resources, particularly of ground waters, threaten the health of people and other organisms, especially of the aquatic organisms (Khalili et al., 2009). Moreover, the extensive use of chemical pesticides has also entailed serious problems, such as resistant pests, destruction of non-target species, and impairment of the ecosytem equilibrium.
Food Insecurity The continuous increasing demand for the food requires the rapid improvement in food production technology. In a country like Ethiopia, the economy is mainly based on agriculture and the climate conditions are isotropic, still we are not able to make full usage of agricultural resources. The main reason is the lack of rains and scarcity of the land reservoir water in some areas of the country. The problem I address about my country is that Ethiopia is one of the countries among the third world countries facing food insecurity currently. It is believed that around 10.2 million people are getting hunger out of the total population of 100 million people.
According to Dr. Jocelyn T. Zarate of UPLB BIOTECH, when inoculated to seedlings the fungi infect the roots and help absorb water and nutrients, particularly phosphorus, which is needed by the plant. The fungi also prevent root infection by pathogens and increase plant tolerance to drought and heavy metals. Coconut products generate the largest agri-food export. The industry has performed dismally over the years due to several reasons, foremost of which are the lack of top level resolve, inequitable resource allocation, and implementation constraints. As a result, low productivity prevails and, in turn, high poverty and insurgency.
Pesticides serve many functions, some of which are more essential to society than others. Pesticides can prevent crop failure, control invasive plants, or promote a uniformly green lawn. Some pesticides reduce blemishes on fruit and vegetables, ensuring that a greater proportion of the crop is marketable. Negative Effects of Pesticides According to the National Institute of Environmental Health Sciences, pesticides have as yet incompletely understood effects on humans. Most people are exposed to a certain level of pesticides.
This report is written to examine the effects of deforestation on the development countries as there have been many arguments on whether deforestation benefits or bring harms to the countries. Deforestation is a process whereby trees are felled for several purposes but without replanting to replace the ones felled (Aina & Salau 1992 cited in Ebenezer 2015). Scientists estimated that since 1960, due to deforestation, one third of the world’s useful land had lost (Bradford 2015). By the late 1980s, it was forecasted that two fifth of the global rain forests had already been destroyed (Stanford 1990). Deforestation brings many effects either to society or country.
Humans tend to use too much Synthetic fertilizers to meet the global demand of food. Although these mentioned chemicals and minerals help boost the production of food, this has its negative side effects in the long run. Some of the negative effects of synthetic fertilizers are the following: a.) It depletes the quality of soil where in it imbalances the acidity level of the soil that will lead to do a soil test every after three years to track whether you are using the right soil pH. b.)
In this farm the production is doubled annually Weakness -Dry beans are highly attacked by a number of pest and diseases that will results in lost in quality and yield. Opportunity -Planting of new varieties that are more resistant to a number of pests and diseases. Threat Climatic conditions especially in winter where is being experienced while dry beans are highly tolerant to frost. SOIL REQUIREMENTS FOR DRY BEANS • Dry beans can be well cultivated in well-drained soil, since poorly drained soils cause soil borne diseases and beans are sensitive to waterlogging soils. • Dry beans must be cultivated in soils with 60-90cm deep.