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Population growth on agriculture
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The population of Earth increases every single day, which means we will also need more food. As a solution to this problem people invented the fertilizers that are commonly used today all around the world. What are fertilisers? Fertilisers are materials that people use to boost the speed of plant and fruit growth. They contain chemicals and minerals that the plant needs for healthy growth. There are two main types of fertilizers which are organic and chemical.The organic materials are mostly made from manure, compost and the residues of plants, but, to make them healthy for the plants and hundred percent organic, the sources should be deprived of any chemicals. The chemical (synthetic) materials are considered “inorganic” and often contain acids that repel living organisms present in the soil: like worms. The …show more content…
With fertilisers people are now able to replace the essential nutrients that the soil is not able to provide the plants with. Nitrogen elements increase the number of stems, flowers and fruits that the plant produces. Phosphorus affects the root system: it makes the plant produce oils and starch which make the roots stronger and larger. It also increases chlorophyll development which then allows photosynthesis. Potassium helps the plant produce more protein, build up an immune system and activates …show more content…
After the use of organic fertilisers the soil stays alive, which is opposite to what chemical fertilisers do. The organic fertilisers feed the soil which then help the plant when chemical fertilisers affect the plant directly. The chemical materials affect the soil pH making it more acidic, which then repels soil micro-organisms that are beneficial for the soil and the plant. Including the bacteria which helps the plants to use
Organic fertilisers and natural pest control methods minimise the impact of viticulture on the environment. In recent years there has been a considerable movement by some growers towards an organic approach. This is as a result of consumer driven trends and pressure to minimise the environmental impact of viticulture.
Interestingly, these tests revealed strikingly high levels of phosphate and nitrate, two chemical compounds that exist naturally on the earth to aid the growth of organisms as nutrients. As the world’s agricultural needs transform, nitrates are often found in man-made fertilizers compared to its typical natural source . This increased use of fertilizers in farms
Lyman (1998) explained that organic farmers in the past had to pay attention to details. Such details are: what plant they were growing so that the soil would get the nitrogen naturally, leaving the field fallow once every few years so that moisture can be restored to the soil, ways to raise the animal so that they do not overgraze the land, and work with nature and not against it (p. 85). The work of traditional organic farming is very labor intensive and the product is not always profitable. Lyman explained that the uses of chemicals made farming easier because he can buy fertilizer in bulk and put it into the soil. The fertilizer helps increase grass growth, which also increases the size of the cows, providing the farmer with greater profit.
My group, fertilizer group 3, is testing the variables of plant color and number of leaves. Fertilizer can affect that drastically! Those two variables are basically what determine a healthy plant. Fertilizer can help to boost the minerals in the soil and give the plant what it needs to survive and be healthy.
increased levels of proteins in crops. It is also beneficial by helping the plants to be
It is collected through the roots and moved throughout the plant’s structure. The water spreads moisture, as well as nutrients like nitrogen, phosphorus, and potassium. Too little or too much water or nutrients can be harmful to a plant. Adequate space must also be provided in order for a plant to reach its maximum growth
The first reason being that since they are not using any chemicals, the farmers are doing more labor work. By using chemicals on crops, farmers end up reducing the cost of production because they are able to get the job done faster. Without the chemicals, farmers have to hire more people to weed eat, clean the polluted water, and get rid of the pesticide contamination. The second reason is that the demand overwhelms the supply. Organic farms tend to produce less than non-organic farms. Non-organic farms have the supplies they need to keep costs down since manufacturers are able to decrease costs when producing a large quantity of products. The third reason is that fertilizers are more expensive for organic crops. Non-organic farmers use sewage sludge and chemicals, because they do not cost as much and they are cheap to transport. Organic farmers keep their crops natural and use animal manure, which is more expensive to transport. The forth reason is crop rotation. Organic farmers use crop rotations to keep their soil healthy and prevent weeds, while non-organic farmers use chemicals to kill their weeds. The fifth reason is the post-harvest handling cost. In order to avoid cross-contamination, organic foods have to be separated from non-organic foods after being harvested. Non-organic foods can be shipped in larger quantity sizes,
Growing more organic food would result in more qualitative air and water. As far as organic food is grown mostly on small farms and the process excludes almost any use of pesticides or chemical stuff, organic farming does not create a threat of water and grounds contamination. Moreover, organic farms show a tendency to create more sustainable and richer soil layer due to crops rotations and use of organic composts. Crop rotations also reduce the exposure of plants to pests. The organic farming can also produce benefits in terms of slowing soil erosion and creating favorable environment for changing nutrient demands that are placed on the soil due to use of respective methods food production. In such way products grown on organic farms seem to include more valuable substances, like vitamins, iron, and other types of minerals. Thus, while growing organic food is imposing a positive impact on soils and decreases the intensity of pollution, it also results in higher contents of valuable substances in
Organic foods are those grown without the use of growth hormones, antibiotics, synthetic pesticides, or chemical fertilizers. Genetically modifying crops is also not preformed in organic farming. Soil fertility can be maintained using crop rotation, cultivation practices, and cover crops. Natural fertilizers and pesticides are still considered to be included in organic farming (Winter & Davis, 2006). Products that are controlled with cultivation conditions rather than chemical-synthetic pesticides include organic products (Woese, Lange, Boess & Werner Bogl, 1999). The use of synthetic pesticides and materials falls under conventional farming. If the materials are on the National List of Allowed and Prohibited Substances, it can, however, be considered organic. A process that chemically changes a substance extracted from naturally occurring sources is considered a synthetic material (Winter & Davis, 2006).
There are macronutrients and micronutrients that are essential in woody plants growth. Macronutrients are required by plants in relatively large amounts they include; nitrogen, phosphorus, potassium, magnesium, sulfur and calcium. Micronutrients are needed in smaller amounts they include; iron, manganese, zinc, boron, copper, molybdenum and chlorine. In the prairies soils are known for having a slightly high pH. This means that they tend to be basic and can actually tie up certain nutrients in the soil. Lime-induced chlorosis is caused by a pH imbalance in the soil that holds up iron in the soil. When a soil has a pH that is higher than normal iron in the soil becomes unavailable. It is not a deficiency of the micronutrient but the pH imbalance that will cause interveinal-chlorosis in plants. Knowledge of nutrient requirements and deficiency symptoms will aid in proper diagnosis of
A study of 362 datasets found that organic agriculture produces 80% of conventional yield with 21% standard deviation (Tomek et al. 2012). Second, organic farming requires less energy input which equates to less money spend from the farmers in addition to lowering carbon emissions. A study by the Department of Environment shows that organic agriculture uses 25 percent less than energy than their chemical counterparts, and certain crops like organic leeks and broccoli use 58 and 49 percent less, respectively (Bialis et al. 2013). Third, organic farming does not use pesticides. According to the World Health Center, 20,000 people die annually from the exposure of pesticides (Costa et al. 2014). Fourth, the methods that organic farmers use are better for the environment in the long run. And lastly, organic farming creates more jobs. A study done in United Kingdom shows 93,000 jobs could be created if Britain were to make a full scale shift to organic farming (Herro 2006). Although conventional agriculture is the primary producer for food currently, a large scale shift to organic agriculture is better suited to feed the world because organic agriculture can produce at adequate yield, requires less energy input, do not use
conventional food, they take in a great deal of harmful chemicals. In organic farming, “... there is
Fertilizers are essential to modern industrial agriculture. Two of the most important plant nutrients are nitrogen and phosphorus. Nitric acid, phosphoric acid, ...
Farmers apply nutrients such as nitrogen, phosphorus, manure, and potassium in the form of fertilizers to produce a better product for the consumers. When these sources exceed the plants needs or if these nutrients are applied before a heavy rain then the opportunity for these excess to wash into aquatic ecosystems exists.
Plant nutrition is area of plant biology that is of the utmost importance for the proliferation of plants. Without proper nutrition, plants would simply cease to exist unless drastic alterations were made. There are certain elements that are required for the plant to grow and reproduce; these elements are known as essential elements. There are three requirements of an essential element: the element must be required for the completion of the plant’s life cycle, the element must not be replaceable by another element in whole, and finally the element must be direction involved in the metabolism of the plant. Chemical compounds that are involved in proper nutrition have been designated as nutrients, and further classified as macronutrients and micronutrients. Macronutrients are needed for growth, metabolism, and many other functions, but are designated as “macro” because they are required in larger amounts. Macronutrients include carbohydrates, proteins, and fat molecules. Micronutrients have a much wider function that depends on the exact micronutrient. Micronutrients are designated as so because they are needed in much smaller amounts when compared to macronutrients. Examples of micronutrients include vitamins and minerals.