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Morning dew

Soil moisture has a tremendous effect on soil-vapor sorption. Dry soils will sorb about 10,000 times more landmine signature chemicals than damp soils. This depresses the vapor levels the same amount. This process is reversible, so daily morning dew is valuable for vapor sensing, and afternoon drying is detrimental for vapor sensing. [Pg.86]

Leaves mottled yellow between veins leaf undersides have purple spots. Cause Downy mildew. As the disease progresses, older leaves turn "brown and die, and younger leaves become infected. Treat plants with a dilute solution of copper spray to reduce the spread of the disease see the caution above before spraying. Prevent problems by planting resistant culti-vars such as Morning Dew , Saticoy , and Tam Honeydew . [Pg.153]

In drying herbs a high volatile oil content is important. The tops of the plant are always preferable to the whole plant for immediate use, and the time of the day for picking must be when the morning dew is dried away. If they be cut wet with dew, herbs will not dry well, and if they be cut at noon-day, when the sun has made the leaves flag, they will not have their full power. [Pg.25]

Hydrophobic Surfaces Made Hydrophilic. Greenhouses are often covered with transparent plastic sheets. Morning dew condensing into fine droplets on the plastic scatters the light and robs flowers and plants of much needed sunlight. It is desirable to find a way to force water to spread into a continuous film, in other words, to Svet the material. There are plasma treatments that can create hydrophilic groups on the surface of the plastic, thereby lowering 7c-... [Pg.24]

Infection is the most effective in the morning hours. Formerly, it was suggested because of the flowering dynamic (Lewis, 1945). Today, it is also accepted the influence of the morning dew and moderate temperatures preventing the conidia from sudden drying (Hornok, 1990). [Pg.310]


See other pages where Morning dew is mentioned: [Pg.309]    [Pg.161]    [Pg.87]    [Pg.869]    [Pg.211]    [Pg.206]    [Pg.347]    [Pg.451]    [Pg.140]    [Pg.45]    [Pg.364]    [Pg.365]    [Pg.367]    [Pg.133]    [Pg.232]    [Pg.8]    [Pg.507]    [Pg.1937]    [Pg.693]    [Pg.555]    [Pg.232]    [Pg.193]    [Pg.298]   
See also in sourсe #XX -- [ Pg.206 ]




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