Positive Effects of Conservation Tillage
For centuries farmers have used plowing as a tool for weed control, and
in some cases to promote plant growth. At first man had used animals to pull
plows and other equipment, with the invention of the tractor work that would
normally be done with animals could be done more easily and quickly. Although
plowing has been a common and widely used tool for managing weed control,
there are many negative impacts associated with this method. Conservation
tillage is a method where some of crop residues, if not all of crop residues,
are left on the surface of the soil. Conservation tillage methods have become
popular in many areas around the world, and while many of the effects of
conservation tillage are still under research, many farmers have found that
it helps to not only protect the health of their fields, but also that it
saves both time and money.
Research shows that conservation tillage has many beneficial effects
such as the reduction of soil compaction, increases in biodiversity, higher
crop yields, decreases in erosion, reductions in fuel requirements and other
capital inputs for machinery, and up to a seventy percent reduction of preharvest
labor. Researchers are not the only ones that are noticing that
conservation tillage has a promising future which combines low labor
requirements with low erosion rates (Giere, 2002). In America, eighteen
percent of crop fields are managed using conservation tillage methods, and in
Paraguay ninety percent of fields are managed with conservation tillage
methods (Karasov, 2002). Though the percent of conservation tillage in the
United States may not be as high as other areas in the world, it is projected
that nearly eighty ...
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...2004, October). To Plow or Not To Plow: Balancing Slug Populations
with Environmental Concerns and Soil Health. Agricultural Research, 16-
17.
Durham, S. (2003, March). Drought Survival with Conservation Tillage.
Agricultural Research, 22.
Giere, J.P., Johnson, K.M., & Perkins, J.H. (1980). A Closer Look at No-Till
Farming. Environment, 22(6), 15-20, 37-40
Karasov, C. (2002, February). Spare the Plow, Save the Soil. Environmental
Health Perspectives, 22(2), A75
Machado, A.F.L., Jakelaitis, A., Ferrriera, et al.(2005). Population Dynamics
of Weeds in No-Tillage and Conventional Crop Systems. Journal of
Environmental Science and Health, B40, 119-128.
Runion, S.B., Prior, S.A., Reeves, D.W., et al.(2004). Microbial Responses to
Wheel Traffic in Conventional and No-Tillage Systems. Communications in
Soil Science and Plant Analysis, 35, 2891-2903.
a basis of production, and the only way to operate large farms at the time,
and they make sure people are not treated unfairly in their society and in their communities and
“Farming techniques such as strip cropping, terracing, crop rotation, contour plowing, and cover crops were advocated.” ("About the Dust Bowl")These new techniques were advocated in order to try and prevent more dust from getting picked up by wind and starting the dust storm again. “But for years, farmers had plowed the soil too fine, and they contributed to the creation of the Dust Bowl.”(Ganzel) This was a big mistake farmers had made. This was one of the huge factors in contributing to the Dust Bowl. This has definitely changed now. “Now, many farmers are learning how to raise crops without tilling their fields at all. (Ganzel) Farmers now not tilling their fields at all is a new farming
arrow to hunt with as well. To cook the food that they had gathered the made the rope twister
Farmers had a lot of land but little tools to make it easier to get their livestock from one side to other. They used this breed to herd cows, sheep's, goats,
In the coarse of human existence, civilizations have made farming their primary source for food. As long as farming has been around, agricultural implements have been used to farm the land. Scientists believe that the first plows that were used, date back to 4,000 B.C. These plows were simply pointed sticks but nonetheless, they were the pioneers of modern day plows. By 3,000 B.C. the Egyptians invented a plow with a wider, triangular share that turned more dirt in a wider furrow. As the population grew over time, more and more people moved into Europe. The soil contained much more moisture, and required a lot of power to be able to pull plows through it. The Dutch then invented an iron- covered moldboard that cut much better through the earth and greatly reduced the power needed (Drache 2-3).
Care for the health and safety of others that may be affected by their acts or omissions
Many farmers always wonder about newer, more efficient ways to farm. Farming becomes more and more precise every day; farmers struggle to keep up with moisture loss caused by dry-spells, soil and nutrient run-off caused by erosion, and trying to raise better yields. Although it may seem as if there is no answer, many farmers are turning to no-till as the solution. Some farmers stand against no-till, saying it keeps the ground too cold for too long in the spring, or that it will not allow them to get their crops up, but much research proves these beliefs wrong. No-till is an advantage over conventional-till for three main reasons: conserves moisture in the soil, reduces erosion by wind and rain, and increases the quality of the topsoil.
First of all, the Plow was used for farming to break up soil. It was first used when the Middle West was being settled. Although the sumerians invented the Plow John Deere improved it and made a steel plow in 1837. It was used to bury crops residues, and to help control weeds. The antecedent of the Plow is
.... Keeping them alive is the main goal and if you can try your hardest to do that, this job will pay off and you will be incredibly satisfied with the career path you have chosen.
Farming has changed a lot over time, new technology has been invented, more food can now be produced, and more farms have opened. Most of the new technology that has been invented for farming was made to make farming faster. In the 18th century horses and oxen were used for power, hay and grain cutting was done with a sickle, cultivating by hoe threshing was done with a flail, ("Spielmaker"). A lot also happened in the 17th century; The scythe and cradle was introduced, the invention of cotton gin in 1793, Thomas Jefferson's plow with a moldboard with the least resistance tested (1794) ("Spielmaker"). A very common fertilization technique in the middle age was called "marling". The technique Marling is when a farmer would spread clay which contained lime carbonate on to their soil. This process restored the nutrients needed to grow crops. Some farmers also used manure as a fertilizer which they got from livestock they raised ("Newman"). Farmers had a spring and a fall crop....
The Seed plow is a very interesting artifact. In Mesopotamia they trained animals to pull the plow. They preferably liked to use Ox, Cow, Horse or Donkey to pull the plow because they were big and strong. The animal is hooked in front of the plow pulling, and the farmer is behind the plow pushing it into the ground. Since the plow is going into the ground, it makes rows in the soil. The seed plow is made for the seed that is in the plow drops into the row that it has made to plant the crops. Now all the farmer has to do is cover the seeds up and maintain his/her farm . (“Mesopotamia: Science & Inventions.". 07 Nov. 2013.)
This is a form of rotational grazing. It is considered the best method of grazing. It involves the farmer dividing grazing areas into 20-25 paddocks. The paddocks depend on the size of our herd. Every day cows will graze one paddock. This method is based on the idea that each tiller has three actively growing leaves at an...
crop. We spread slurry from the sheep shed and cattle shed and fertilisers such as 10-10-20,
The greenhouse gases are those that absorb the Earths radiation and thus contribute to the greenhouse effect, but water is also a major absorber of energy. Where there is an increase in the concentration of greenhouse gases (as with CO2 due to the burning of fossil fuels) this results in an enhanced greenhouse effect - which is of concern as it could lead to climate change (i.e. global warming).