The tomatoes would need to be planted and harvested at times that would avoid the possibility of frost. Growers would need to supply the tomatoes with the right amount of water and nutrients and they would need to ensure that there was a sufficient amount of light and a growing medium to plant tomatoes in. If the crop is changed for a different type of plant the pathogens won't build up so quickly. Chemical control might be the most effective method of controlling the pests available. You would need to supply the plants with sufficient amounts of water and fertilizer. Focusing Questions: How do we produce useful plant products? The farmer could only grow tomatoes if the area where the field was located received sufficient rainfall, or if irrigation was available. The plants reproductive efforts will not be wasted on a season with poor conditions.
Possible answers include: - use of zero-tillage technologies - the introduction of genetically modified varieties of seed - use of new types fertilizers and pesticides - equipment is mechanized to a greater extent and is generally more efficient - improvement of irrigation systems - fewer people are required to work the farm - farming continues to change as new seeds are developed, machinery is improved, new chemicals are developed. The entire test bank is made up of 148 questions the computer will randomly choose 50 questions for each exam attempt you make. It is important to be able to continue to grow crops year after year. For this to occur, proper management practices must be followed, which allow soil nutrient and organic material levels to be maintained. One possible example would be growing a tomato. Use the text, your notes, and information from the activities to study for this exam. Plants For Food and Fibre Study Guide Below is a list of the topics covered by the questions that may appear on your exam.
Manure and earthworms could be added to the soil. If sustainable farming or forestry practices are not followed the land may eventually get to a point where it can no longer support plant growth. Precautions must be taken to prevent the control organisms from spreading. The intended level and scope of treatment is defined by the outcomes below. Economically important crops grown in Alberta include wheat, canola, barley, oats, sugar beets, corn, flax, rye, and alfalfa.
Farmers and foresters need to consider the soil type, weather patterns in the area temperature, precipitation, wind, number of frost free days , types of pests present, and the topography of the land. Identify and interpret relationships among and the culture and use of living things as sources of food and fibre. To better meet these needs, technologies have been developed for selecting and breeding productive plant varieties and for maximizing their growth by modifying growing environments. While carrying out this process they help break down organic material in the soil, passing the nutrients within the material back into the soil for use by plants. . The effectiveness of the control organism against the pest would have to be monitored. The land is tilled periodically to remove weeds.
Insect pests could be controlled using biological control or minimal chemical pesticides. Long-term sustainability requires an awareness of the practices humans use and an examination of the impacts of these practices on the larger environment. The worms also aerate the soil and improve drainage. Irrigation : To supply dry land with water by means of ditches, pipes, or streams; water artificially. You could conduct a water test to see how much water the soil holds.
Later the compound responsible for this acetylsalicylic acid was derived, concentration and produced as Aspirin. Sustainability relates to the ability to grow crops on the same piece of land over and over again. Summer fallow leaves areas of soil without crops. Pieces of the root left in the ground can produce new dandelion plants. Your exam consists of 50 multiple choice questions. Bananas are naturally oval shaped and their seeds are large and hard.
Seeds could have been carried to the island by the wind, by birds or sea mammals, by waves, or by people visiting the island. Key Concepts The following concepts are developed in this unit and may also be addressed in other units at other grade levels. Amount of useful plant parts per plant Hydroponic System: Artificial soil environment The hydroponic method is a means of plant production where plant roots are suspended in a solution of nutrient-rich, oxygenated water flowing through a pipe or container of some sort. Dandelions have a long deep taproot; they give off chemicals that impede the growth of other plants; they easily reproduce asexually from parts of their roots; and they have an efficient way of dispersing their seeds. Chemical control could also be the quickest, easiest, and least expensive pest control option. Overview: Humans have always depended on plants as a source of food and fibre, and to meet a variety of other needs. What techniques do we use, what knowledge are these techniques based on, and how do we apply these techniques in a sustainable way? Summer fallow can lead to wind and water erosion.
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