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Herbicide Application

Descrição

Advanced Agronomy (Disease Control) Mapa Mental sobre Herbicide Application, criado por labradorlass em 25-05-2013.
labradorlass
Mapa Mental por labradorlass, atualizado more than 1 year ago
labradorlass
Criado por labradorlass mais de 11 anos atrás
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Resumo de Recurso

Herbicide Application
  1. Foliar
    1. Contact
      1. Translocated
        1. selective
          1. broad leaf
            1. grass
            2. non selective
              1. Retention
                1. keeping droplet on leaf
                  1. leaf properties
                    1. overcome waxy cuticle
                      1. wetters and stickers
                        1. reduce surface tension
                          1. need to get in plant quickly
                    2. environmental factors
                      1. evaporation
                        1. wax quantity
                          1. glasshouse plants have thinner waxy cuticle
                            1. water stressed = more wax
                            2. humidity
                              1. 100% efficacy @ 95% RH 30% efficacy @ 40% RH
                                1. Anderson et al 1993
                              2. temperature
                                1. light
                                  1. can be necessary for efficacy
                                    1. causes activity
                                      1. active plants absorb active product quicker
                                        1. wont survive as long
                                    2. rainfall
                                      1. some plants need a longer period after rain than others
                                        1. water loving or water hating
                                2. Soil
                                  1. pre emergence
                                    1. post emergence
                                      1. don't know how long will last on soil
                                        1. affected by water and OM
                                        2. selectivity
                                          1. broad leaf taken up through roots
                                            1. grass weeds through shoots as emerge
                                          2. All
                                            1. some herbicides will not control some weeds
                                              1. bigger plants are better at breaking down herbicides
                                                1. hence need more to kill
                                                2. translocated herbicides should be applied to actively growing plants
                                                  1. active plants are more reactive
                                                    1. if soil temp below 5C will not grow
                                                      1. if temp drops after taking up herbicide then effect slows accordingly

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