Based on your data, which type of soil do you think is best for agriculture? Explain your answer. Loam would be the best kind of soil to plant crops in because it is permeable but it takes low amounts of water to irrigate the soil. Farmers often have problems with soil erosion when they clear their fields after the growing season. Soil type is one factor that influences erosion.
Maintaining a good ground cover and preventing seed set are crucial in stopping the spread and establishment of African rue. (Parson) * Physical control: Control of individual plants and small infestations may be achieved by digging out, hand pulling, burning, slashing, heavy grazing, or repeated cultivation. Sowing a dense cover crop will assist in preventing the re-establishment of African rue. (Parson) * Chemical control: There are currently no registered products for the control of African rue. However it is reported that spot spraying with Glyphosate prior to flowering may provide some control, repeat applications are necessary for effective control.
Abstract Intraspecific and interspecific competition plays a major role in stabilizing environments. These mechanisms ensure that no species can go beyond its environments carrying capacity. The purpose of this lab is to determine the effects of density on biomass of plants and the effects of predators and abiotic factors in an environment. This will be tested with the spinach plant Spinacia vulgaris of varying densities in the same sized pots and with the use of P. aurelia, P. bursaria and P. caudatum divided into control and experimental groups. The results showed that the increasing of the density leads to a decrease in the biomass of plants and that the experimental groups are not much different than the control groups.
Compare the benefits of growing GM seeds for crops with the potential negative consequences of using them? The benefits of growing GM seeds for crops is that the seeds are more resistant to stress and the crops can overcome pest outbreaks and reduce the danger or crop failures. The crops can endure severe weather such as frost, extreme heat or drought. Now the negative side effects of the GM products is for example the wind blowing to different fields were other farmers may prefer not to use enhanced seeds. They are modified with herbicides and pesticides so the uncertainty of health consequences of humans consuming the food grown by these seeds exists.
4. The reason for the national policy for colour coding of cleaning equipment is to ensure that the same cleaning equipment is not used in multiple areas, therefore reducing the risk of cross-infection. Outcome 2 1. The three steps of the decontamination process are cleaning, disinfecting and sterilisation. Disinfecting is a process used to reduce the number of micro-organisms to a safe level for a defined procedure but which may not necessarily inactivate all viruses and bacterial spores.
However, those that negatively influence the environment should be controlled at early stages. Cane toad being amongst the invasive species have increased spreading in Australia that have resulted in the adverse results from the intended ones thus calling for the control measures to carried. Bibliography Ecology: Toxins for cane-toad control. (2012). Nature, 487(7408), pp.409-409.
Branch infections are not too serious; stem infections are — they are often lethal. However, stem infections usually arise from branch infections. Pruning infected branches can prevent infections near the stem from growing into the stem, where they are likely to girdle and kill the tree. If the branch dies before the fungus reaches the next larger branch or stem, the fungus is done for. If it colonizes the stem, especially when it is small, the tree is done for.
orientating leaves at rights angles to the sun to reduce the surface area exposed to sun 2. dropping leaves if the temperature becomes too cold or under times of heat stress to reduce metabolic processes 3. seed germination and budding when temperature increases * Some Australian native plants, such as banksias and wattles, respond to temperature changes provided by bushfires by triggering the release or germination of seeds * The Process of Homeostasis * For an organism’s cell to function properly, it need relatively constant internal conditions. The chemical process of living systems are controlled in the cell by enzymes, enzymes work best at certain temperatures * An Enzyme is a Biological Catalysts – proteins made up of amino acids linked and then folded * A catalyst is a general term for any substance that speeds up or brings about a chemical change without itself being used up in the reaction * Homeostasis is the process by which organisms maintain a relatively stable internal environment * The Process of homeostasis consists of two stages: 1. The organism detects changes from the stable state such as change of
Compare JVTF methods (such as crop rotation, pest management, or use of cover crops) with more traditional farming methods that have a negative impact on the environment. . They don’t use pesticides so not a good chance that the food will be tainted. Crop rotation is nice because its makes sure that you have room for your next seasons crops and they also can have sells on the leftover crops from last harvest. 8.
Genetics, climate, soil, disease, insects prevent some cultivated plants from being able to spread on their own; they simply will not survive unless humans take care of them. As a result, they generally don’t cause any significant problems in the wild. Therefore, we have little to worry about when it comes to certain non-native plants that will not spread “on their own.” INVASIVE Plants: What’s the problem? • Under the right conditions, some non-native plants can become invasive. An invasive plant is a non-native plant species that has escaped cultivation, is spreading on its own and causing environmental or economic harm.