Influence of Capillary-Sorptive and Osmotic Moisture Pressure in Chernozem on the Growth and Guttation of Barleyстатья
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Дата последнего поиска статьи во внешних источниках: 14 апреля 2015 г.
Аннотация:In an experiment with a single independent variable, a separate influence of capillary-sorptive (Pcs)and osmotic moisture pressure (Po) on growth and guttation of barley was studied with the aim of examining the availability of soil moisture for plants in a wide range of salinization (0.2–50 g/l NaCl and 0.2–66 g/l Na2SO4) and moistening (Pcs 0.24 atm). The study was carried out on samples of chernozem moistened with salt solutions (NaCl and Na2SO4) to the values of field water capacity. It is shown that the dependence between the relative growth and guttation of barley and the osmotic pressure is close to the linear one: the equations derived are in agreement with modern concepts of water movement in the soil–plant system.