Difference between revisions of "AY Honors/Gardening/Answer Key 2/es"

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Revision as of 07:07, 11 March 2021

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Pest control

When chemical pesticides were first introduced, they were used to the exclusion of all other types of pest control. This had the unfortunate effect of poisoning the environment. In the 1970's this situation was recognized, and Integrated Pest Management (IPM) techniques were introduced. Pesticides are still used, but they are a last resort.



Mulch is decomposed plant materials that are used as a planting bed, source of nutrients, and protective top layer that can maintain soil moisture levels and keep heat in.



Hardiness determines the extent to which a plant or tree can tolerate cold or heat. Normally this is measured in cold such as "plant hardiness to 27 degrees." This means that below 27 degrees the plant will begin to be effected by the cold, starting with freezing of leaves and or fruit.



Referencias